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Job Description Senior Systems Engineer El Segundo/Los Angeles, CA - (Hybrid) Description: Apply to join the Positioning, Navigation, and Timing (PNT) Enterprise Systems Engineering & Integration (SE&I) team. SE&I provides engineering, integration, technical analysis, and subject matter expertise support to the US Space Force and Department of Defense (DoD) agencies. As a member of our PNT SE&I team, you’ll work in a fast-paced environment with government personnel and system developers to ensure that Global Positioning System (GPS) remains the gold standard for positioning, navigation, and timing. A successful candidate will collaborate and communicate with the SE&I leadership team to ensure processes and products are delivered with quality and professionalism. • Duties, • Provide technical expertise and systems integration support to ensure an optimal integrated GPS System design, • Contribute to the overarching approach and processes for integrating, synchronizing, tracking and analyzing dependencies across programmatic and organizational boundaries, • Develop engineering and data models and populate them with up-to-date information to enable automated integration analyses, • Provide technical support for test activities that characterize system performance, • Perform and present data analysis that drive decisions on government programs, • Support GPS Enterprise Risk & Opportunities management, • Qualifications, • Bachelor’s degree in engineering, mathematics, physics or equivalent technical discipline and nine (9) years of systems integration and systems engineering related or equivalent experience, • Active Secret Clearance, • Experience working across space, ground, and user segment organizations to coordinate and identify system requirements and key performance parameters to ensure end-to-end mission performance requirements are met, • Experience with system architecture development, • Strong interpersonal skills to enable working, interfacing, and interrelating with diverse personnel and dynamic teams, • Must be able to work well in multi-team setting, and willing to take on additional technical and administrative tasks/duties as needed, • Space vehicle as well as other GPS related experience, • Desired, • Active Top Secret/SCI Security Clearance, • Experience and familiarity working with DoD acquisition organizations

Job Description IESE Solutions is seeking a Systems Engineer to support the U.S. Space Forces mission of delivering warfighter capability via the Space Systems Command (SSC) directorates. Position is available in El Segundo, California. This program is supporting Government weapon systems program offices with subject matter experts that have a background with the Space-based and, or Ground Systems including Command & Control services. Team members provide systems engineering development and integration expertise in support of various capabilities that protect and defend the Nation's most valuable space assets. Our team is at the forefront of the advising and assisting the Government with their architecture and full lifecycle systems engineering processes that enable key systems (e.g., satellites and their ground systems, ground-based space systems and their command and control capabilities) to meet warfighter needs. Typical responsibilities include: • Provide Systems Engineering expertise across the entire lifecycle from concept development to operations (for either Space-based, Ground-based space systems and, or the Ground Systems/Command & Control services that operate those capabilities)., • Provide technical oversight of development efforts (i.e., design, development, manufacturing, assembly, integration, test, production and sustainment) whether they are traditional acquisition methods (e.g., waterfall, spiral, etc.) or agile/prototype., • Develop operational concepts, requirements, and architectural designs; evolve system architectures, conduct and analyze requirements flow down, propose verification methodologies and mitigation approaches., • Conduct model-based systems engineering and modeling, simulation and analysis as needed., • Conduct and maintain Configuration Management of the program technical baseline., • Manage risk management processes and methods for identifying and adjudicating program risk; Conduct analysis to identify program risk areas and recommend/implement risk reduction measures. Requirements • Bachelor's degree in an engineering, mathematics, physics or equivalent technical discipline and 14 or more years of systems integration and systems engineering related or equivalent experience., • Experience with the following:, • Leading combined hardware/software and, or space/ground integration activities., • Using model-based system engineering tools and methods., • Systems Architecting and lifecycle support., • Implementing agile development techniques., • Applying Agile and/or DevOps development processes., • Must have an active DoD security clearance, adjudicated for SCI eligibility and enrolled in the Continuous Evaluation program (if applicable)., • Must be willing to be nominated for access to Sensitive Compartment Information and Special Access Programs and willing to consent to a Polygraph examination. Desired Skills: • Advanced degree in engineering, science or related technical field., • Experience within the National Security Space and, or the Space Control mission area., • Experience working in development environment and, or U.S. Government weapons system program office., • Professional certification (e.g., Professional Engineer, INCOSE CSEP, ITEA CTEP, Agile PM/PO, etc.). Benefits As a growing small engineering firm, IESE Solutions focuses on people and customers and delivery of uninterrupted high-quality work. Our approach to attracting and retaining highly qualified candidates is to provide an opportunity to help shape the firm's future and a competitive and flexible compensation package consistent with qualifications, security clearance eligibility, and roles. IESE Solutions offers a highly competitive salary and benefits package, including but are not limited to: • Company 401K Contribution (no employee contribution required) up to 10% of qualifying salaries, • Medical insurance, • Dental insurance, • Vision insurance, • Life and AD&D insurance, • Company paid Long-term Disability insurance, • Short-term Disability insurance, • Discretionary Performance Bonus, • Paid Time Off, including Holidays, Vacation, • Flexible Work Hours and supportive/collaborative work environment, • Continuous education sponsorship, • Career opportunities to participate in the next generation space sensing enterprise ground system integration, test and deployment and develop/enhance enduring professional skills and network. At IESE Solutions, salaries are determined by various factors including location, education, clearance, skills, and experience among others. IESE Solutions considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, security clearance, education/training, and key skills. IESE Solutions accepts applications on an ongoing basis and there is no deadline. IESE Solutions is an equal opportunity employer, fostering a culture of merit, diversity and inclusion.

Job Description Reactor Operations Engineer, Nuclear Radiant is a seeking a nuclear engineer responsible for designing and implementing nuclear-specific testing operations at our 2026 demonstration. You will be responsible for the design of a large portion of the test campaign, which includes providing analysis to verify that the proposed testing is both safe and meets the test’s objectives. This position will work closely with nuclear engineers to establish test success criteria and systems / operations engineers to implement written procedures. Responsibilities and Duties: Collect testing requirements, objectives, and success criteria from nuclear engineers. Develop procedures that satisfy test requirements within the operational bounds of Kaleidos. Perform various reactor physics calculations (neutronic and transient analyses) to verify proposed testing sequence addresses all requirements. Document testing procedures and support operator training and control room GUI development. Required Skills and Qualifications: Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution. 2+ years of experience with reactor operations. Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. Knowledge of thermal hydraulic fundamentals. Desired Skills and Qualifications: 4+ years of experience with reactor operations. Direct experience as a reactor operator of an existing nuclear reactor. Hands-on experience in developing technical procedures, human factors engineering, or operational interface design. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $106,500 - $146,475

Job DescriptionDescriptionAs a Senior Flight Dynamics Engineer at Impulse Space, you will lead the development and operational execution of flight dynamics capabilities across current and future programs. This role spans real-time mission support, automation of maneuver execution, trajectory development for new missions, and advancement of inertial navigation beyond LEO. You will work closely with Space Operations, Mission Design, GNC, and Software to make ambitious trajectories operationally executable. Responsibilities • Support Space Operations in planning, analyzing, and executing nominal and novel orbital maneuvers, • Automate maneuver planning and execution workflows to improve speed, reliability, and scalability, • Build and maintain flight dynamics tools used daily by Space Ops (orbital propagation, targeting, orbital determination, covariance analysis, maneuver reconstruction), • Partner with Mission Design to develop and mature new trajectories for GEO, cislunar, and interplanetary missions, • Contribute to development of inertial navigation and orbit determination capabilities across GEO, cislunar, and deep-space regimes, • Perform trade studies balancing ΔV, time-of-flight, operational complexity, and navigation sensitivity, • Support critical mission phases with high-confidence analysis and rapid turnaround Minimum Qualifications • B.S. in Aerospace Engineering, Astrodynamics, Physics, Applied Mathematics, or related field (M.S. or Ph.D. preferred), • 7+ years of experience in spacecraft flight dynamics, astrodynamics, or mission design, • Demonstrated experience with orbit propagation, maneuver targeting, and covariance analysis, • Experience supporting spacecraft operations or mission-critical events, • Proficiency in Python and/or C++ for engineering tool development, • Experience developing production-quality technical software Preferred Skills and Experience • Experience in GEO, cislunar, or interplanetary mission regimes, • Experience with low-thrust trajectory design and optimization, • Development or maintenance of orbit determination filters (EKF, UKF, batch least squares), • Familiarity with DSN-based navigation, optical navigation, or deep-space tracking, • Experience automating operational flight dynamics pipelines, • Background collaborating closely with GNC and flight software teams, • Familiarity with GMAT, STK, Orekit, MONTE, or similar astrodynamics tools Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job DescriptionDescriptionAs a Senior Manufacturing Engineer (Solar Modules) at Impulse, you will work with cross-functional teams to build solar modules for space applications. You will own the build and testing of solar modules in production. Your expertise will directly impact the reliability and performance of the systems we send into low-earth orbit and beyond. Leveling will be commensurate with experience. Responsibilities • Develop and implement solar module manufacturing processes across our vehicles, including development builds and to understand how to improve the manufacturing process and iterate new designs., • Define the manufacturing process flow of solar modules and scale-up of module production rate., • Conduct comprehensive analysis on the solar module manufacturing process to reduce defects, improve quality and improve yield., • Lead failure analysis during prototype fabrication to inform design decisions., • Collaborate with design engineers to ensure manufacturability, DFM/DFA of solar modules., • Collaborate with cross functional teams long-term reliability in space environments., • Provide day-to-day support for the production floor, resolving build issues, updating work instructions, and improving yields., • Provide guidance to solar manufacturing technicians., • Support environmental and functional testing in production. Minimum Qualifications • Bachelors' degree in Materials Engineering, Chemistry, Physics, Mechanical Engineering, Electrical Engineering or related field, • 4+ years of demonstrated development and/or manufacturing experience with solar modules, either for terrestrial or space applications, • 4+ years of experience with setting up a solar manufacturing line, including using stringers and laminators., • Experience with failure analysis of solar modules or electronic devices in a development or production setting. Preferred Skills and Experience • MS degree in Materials Engineering, Chemistry, Physics, Mechanical Engineering, Electrical Engineering or related field, • 6+ years of demonstrated manufacturing experience in solar manufacturing, particularly for the unique demands of space applications, • Expertise with material selection for solar modules used in space applications and how these materials fail in space applications, including cover sheets, encapsulants, interconnects and backsheets., • Experience with providing DFM feedback on space solar modules, with an emphasis on reliability in LEO and GEO., • Experience with failure analysis of space solar modules and a deep understanding of failure modes of solar arrays in LEO and GEO and how to mitigate these in a manufacturing setting. Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job Description IESE Solutions is seeking Systems Engineers with varying levels of experience and backgrounds to support the U.S. Space Forces mission of delivering warfighter capability via the Space Systems Command (SSC) directorates. Positions are available in El Segundo, California and, or Colorado Springs, Colorado. This program is supporting Government weapon systems program offices with subject matter experts that have a background with the Space-based and, or Ground Systems including Command & Control services. Team members provide systems engineering development and integration expertise in support of various capabilities that protect and defend the Nation's most valuable space assets. Our team is at the forefront of the advising and assisting the Government with their architecture and full lifecycle systems engineering processes that enable key systems (e.g., satellites and their ground systems, ground-based space systems and their command and control capabilities) to meet warfighter needs. Typical responsibilities include: • Provide Systems Engineering expertise across the entire lifecycle from concept development to operations (for either Space-based, Ground-based space systems and, or the Ground Systems/Command & Control services that operate those capabilities)., • Provide technical oversight of development efforts (i.e., design, development, manufacturing, assembly, integration, test, production and sustainment) whether they are traditional acquisition methods (e.g., waterfall, spiral, etc.) or agile/prototype., • Develop operational concepts, requirements, and architectural designs; evolve system architectures, conduct and analyze requirements flow down, propose verification methodologies and mitigation approaches., • Conduct model-based systems engineering and modeling, simulation and analysis as needed., • Conduct and maintain Configuration Management of the program technical baseline., • Manage risk management processes and methods for identifying and adjudicating program risk; Conduct analysis to identify program risk areas and recommend/implement risk reduction measures. Requirements • Bachelor's degree in an engineering, mathematics, physics or equivalent technical discipline and nine (9) or more years of systems integration and systems engineering related or equivalent experience., • Experience with the following:, • Leading combined hardware/software and, or space/ground integration activities., • Using model-based system engineering tools and methods., • Systems Architecting and lifecycle support., • Implementing agile development techniques., • Applying Agile and/or DevOps development processes., • Must have an active DoD security clearance, adjudicated for SCI eligibility and enrolled in the Continuous Evaluation program (if applicable)., • Must be willing to be nominated for access to Sensitive Compartment Information and Special Access Programs and willing to consent to a Polygraph examination. Desired Skills: • Advanced degree in engineering, science or related technical field., • Experience within the National Security Space and, or the Space Control mission area., • Experience working in development environment and, or U.S. Government weapons system program office., • Professional certification (e.g., Professional Engineer, INCOSE CSEP, ITEA CTEP, Agile PM/PO, etc.). Benefits As a growing small engineering firm, IESE Solutions focuses on people and customers and delivery of uninterrupted high-quality work. Our approach to attracting and retaining highly qualified candidates is to provide an opportunity to help shape the firm's future and a competitive and flexible compensation package consistent with qualifications, security clearance eligibility, and roles. IESE Solutions offers a highly competitive salary and benefits package, including but are not limited to: • Company 401K Contribution (no employee contribution required) up to 10% of qualifying salaries, • Medical insurance, • Dental insurance, • Vision insurance, • Life and AD&D insurance, • Company paid Long-term Disability insurance, • Short-term Disability insurance, • Discretionary Performance Bonus, • Paid Time Off, including Holidays, Vacation, • Flexible Work Hours and supportive/collaborative work environment, • Continuous education sponsorship, • Career opportunities to participate in the next generation space sensing enterprise ground system integration, test and deployment and develop/enhance enduring professional skills and network. At IESE Solutions, salaries are determined by various factors including location, education, clearance, skills, and experience among others. IESE Solutions considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, security clearance, education/training, and key skills. IESE Solutions accepts applications on an ongoing basis and there is no deadline. IESE Solutions is an equal opportunity employer, fostering a culture of merit, diversity and inclusion.

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. Thermal Modeling Engineer (CFD) Radiant is seeking a driven Thermal Modeling Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties: Develop and execute thermal analysis and CFD to evaluate design and performance of Kaleidos systems. Document analysis results to communicate clear and actionable outputs. Expand CFD capabilities, accuracy, and efficiencies via methods and workflow development projects. Own pipeline for producing analysis geometry from mechanical design CAD Develop methods and calculations to support and build confidence in lower-fidelity thermal analysis methods. Required Qualifications and Skills: Bachelor’s degree in engineering, physics, or similar field from an accredited institution. 3+ years experience with Star CCM+ or Ansys Fluent. Proficiency with CAD software (Siemens NX). Strong understanding of finite element and computational fluid dynamics modeling principles and methods. Experience communicating and distilling information with cross-functional teams. Desired Qualifications and Skills: Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $107.5K - $150K

Job DescriptionDescriptionAs a Senior Acquisition, Tracking & Pointing Engineer, you will lead the development of the pointing and tracking subsystem for our FSO laser communication terminal. You will design the algorithms and controls (both software and hardware). This role blends optics, sensors, and control theory. This role is on-site and will interface heavily with the optical, photonics, and modem teams to ensure an integrated design. Responsibilities • Own the end-to-end pointing, acquisition, and tracking (PAT) architecture for the FSO system to achieve sub-µrad pointing stability; develop pointing budgets that account for spacecraft attitude dynamics, thermal drift, and atmospheric disturbance, and allocate error to subsystems., • Design and implement algorithms to rapidly acquire transmitter and maintain lock., • Develop the control loops for fast steering mirrors (FSM) or precision actuators to actively suppress jitter and beam wander. Tune controllers to mitigate disturbances and minimize pointing error., • Hardware-In-the-Loop (HIL) Testing: Build a testbed to validate PAT performance, including hardware-in-loop simulations., • Rapidly prototype algorithms and simulations to flesh out design, • Support troubleshooting and iteration during optical alignment sessions and system tests. Minimum Qualifications • Bachelor’s or Master’s in Aerospace Engineering, Controls/Electrical Engineering, Applied Physics or similar field., • 5+ years of experience working on pointing, tracking, or guidance/control systems (such as satellite attitude control, gimbal systems, or optical tracking systems)., • Strong foundation in control theory and signal processing. Experience designing and tuning feedback control loops for high-precision systems., • Knowledge of sensor fusion and state estimation., • Understanding of optical pointing mechanisms, pointing errors, and jitter spectra., • Experience with gimbals, fast steering mirrors, precision opto-mechanical actuators or similar hardware., • Proficiency in programming for algorithm development and real-time implementation., • Demonstrated ability to troubleshoot complex hardware/software systems in a lab or field environment. Preferred Skills and Experience • Spacecraft GNC: Direct experience with spacecraft attitude determination and control systems or optical payload pointing. Familiarity with how satellite attitude control systems interact with a high-precision payload pointing system., • Experience working on free-space optical communication pointing/tracking systems or telescopes; e.g., previous development of PAT for laser communications, optical telescopes for imaging satellites, or line-of-sight stabilization for airborne lasers., • Exposure to adaptive optics systems or tip-tilt correction in telescopes enabling high-frequency correction of beam pointing., • Experience with low-latency hardware implementations of control loops; e.g., using FPGAs, DSPs, or real-time operating systems to achieve control loop frequencies in the kHz range. Familiarity with FPGA development toolchains for implementing high-speed tracking algorithms., • Aerospace-environment experience is preferred; e.g., designing control systems or sensors that flew on spacecraft or aircraft., • Hands-on experience with implementing control algorithms in embedded systems or FPGAs., • Experience setting up experiments and test platforms for control systems (motion platforms, optical setups, etc.). Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job Description Lead Nuclear Engineer Radiant is seeking a technical and people-oriented leader for our nuclear design and analysis group focused in areas such as core physics, shielding, instrumentation & controls, and reactor operations. You will lead a high-performing team through the design, development, and test stages of the Kaleidos microreactor. You will own the schedule, budget, hiring, and execution of nuclear-related milestones with a key focus on safety, reliability, portability, and performance. The ideal candidate is comfortable in interdisciplinary environments working cross-functionally with engineers and leadership, is fluent in engineering first principles, has tenacious creative problem-solving abilities and keen to get to the solution of a problem, and loves to mentor and motivate engineers to deliver their best work. You will play a critical role in driving the first portable nuclear microreactor to market. Responsibilities and Duties: Manage an interdisciplinary team of nuclear engineers focused in areas such as safety analyses, core performance, shielding – including operational dose, activation, shutdown dose – I&C, operations, thermal-hydraulics and more. Hire, lead, and grow a high performing team of nuclear engineers. Own nuclear engineering projects end to end including requirement capture, multi-disciplinary design iteration, simulation pipeline development, analysis post-processing, and summarization for regulatory deliverables. Collaborate with regulatory team on nuclear industry standards and requirements. Mentor engineers through actionable feedback and coaching. Required Qualifications and Skills: Bachelor’s degree in nuclear engineering or equivalent degree from accredited institution. 5+ years nuclear engineering industry experience with relevant software use, including MCNP and/or OpenMC. Deep knowledge of neutron transport and Monte Carlo simulation theory. 1+ year managing direct reports. Desired Qualifications and Skills: Master’s or PhD in nuclear engineering or equivalent degree from accredited institution. Subject matter expert in one of following areas: safety analysis, shielding, instrumentation and controls, reactor operations, and/or radioactive material transportation. Hands-on experience designing hardware and/or performing tests. Experience with High-Performance Computing. High-level understanding of government regulatory requirements and engineering practices required to build a safe, reliable reactor. Self-starter and autonomous in planning, scheduling, and leading teams to execute on milestones on time. Experienced leading teams in fast-paced environments, complex technical environment. Expert communicator up and down the chain and effectively acts as a technical advisor. Ability to make sound judgement calls based on company priorities and resources. Tenacious in finding creative solutions to complex problems. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $140.5K - $237.3K

Job Description Senior Thermal Engineer Radiant is seeking a driven Senior Thermal Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties: Own and execute thermal CFD analysis to evaluate design and performance of Kaleidos reactor systems. Develop and implement solutions to model turbulent flow, heat transfer, and multi-physics interactions Identify and implement CFD simulation best practices Build automated workflows to expand simulation capabilities, accuracy, and efficiencies Collaborate across teams and disciplines to support design of reduced order analysis methods. Required Qualifications and Skills: Bachelor’s degree in engineering, physics, or similar field from an accredited institution. 5+ years of relevant industry experience. 5+ years experience with STAR-CCM+, Ansys Fluent, or other commercial CFD code. Proficiency with CAD software (Siemens NX). Mastery of finite element and computational fluid dynamics modeling principles and methods. Experience communicating and distilling information with cross-functional teams. Desired Qualifications and Skills: Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $139.5K - $224.7K

Job DescriptionCX2 is a next-generation defense technology company founded to deliver spectrum dominance for the United States and our allies. CX2’s AI-enabled hardware and software platforms detect, disrupt and defend the electromagnetic spectrum across land, air, sea and space domains. We're looking for a Lead Modeling & Simulation Engineer to own the architecture and development of our modeling and simulation capabilities. This individual will be responsible for building high-fidelity digital models of our systems, enabling rapid design iteration, validating performance, and supporting system development across the full engineering lifecycle. You'll work closely with systems, controls, software, RF, autonomy, and hardware engineers to develop simulation environments that accelerate product development and reduce risk before hardware reaches the field. This is a highly technical leadership role where you'll define simulation strategy while remaining hands-on with model development and analysis. Key Responsibilities • Lead development of modeling and simulation frameworks for complex defense and aerospace systems., • Develop high-fidelity digital twins to evaluate system performance, mission effectiveness, and operational behavior., • Build end-to-end simulations incorporating flight dynamics, controls, sensors, communications, RF effects, navigation, guidance, and environmental models., • Design simulation architectures supporting rapid design trades, system optimization, and hardware development., • Develop Monte Carlo analyses, probabilistic performance models, and mission-level simulations., • Partner closely with systems engineers to define requirements and verify system performance through simulation., • Integrate physics-based models with software-in-the-loop (SIL), hardware-in-the-loop (HIL), and digital engineering environments., • Analyze large simulation datasets to identify design improvements and technical risks., • Establish simulation best practices, coding standards, verification methodologies, and model validation processes., • Mentor other engineers while serving as the company's technical expert in modeling and simulation. Required Qualifications, • Bachelor's, Master's, or Ph.D. in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Physics, Applied Mathematics, Computer Science, or a related technical field., • Active U.S. Security Clearance (or the ability to obtain one)., • 8+ years of experience developing modeling and simulation solutions for aerospace, defense, robotics, missiles, UAVs, autonomous systems, or related industries., • Strong experience with MATLAB/Simulink, Python, C++, or similar simulation environments., • Experience modeling dynamic systems, control systems, estimation algorithms, or autonomous behaviors., • Strong understanding of physics-based modeling and numerical methods., • Experience performing system performance analysis, trade studies, and verification through simulation., • Comfortable working across multidisciplinary engineering teams. Bonus Points, • Experience with missile systems, guided weapons, UAVs, autonomous aircraft, or military platforms., • Experience with digital engineering and Model-Based Systems Engineering (MBSE)., • Familiarity with SysML and Cameo., • Experience with software-in-the-loop (SIL), hardware-in-the-loop (HIL), or digital twin environments., • Experience modeling RF propagation, GPS-denied navigation, sensors, EO/IR systems, or electronic warfare., • Familiarity with Gazebo, Unreal Engine, ROS, STK, AFSIM, MATLAB Aerospace Toolbox, or similar simulation tools.ITAR Regulations, • To conform to U.S. Government export regulations, applicant must be a US Citizen, Green Card holder, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. What We Offer, • Competitive salary, stock options and benefits, including health, vision and dental., • 401K enrollment at 90 days., • Generous PTO + most Federal Holidays observed., • Collaborative and inclusive work environment., • Access to the latest tools and technologies., • High levels of responsibility and autonomy., • Professional growth and development opportunities., • Access to the hardest problems in electronic warfare.Exact compensation may vary based on skills and experience.CX2 is a next-generation defense technology company securing spectrum dominance for the United States and its allies. We build AI-enabled hardware and software platforms to detect, disrupt, and defend the electromagnetic spectrum across land, air, sea, and space. Our systems are deployed in the most contested operational environments in the world. We’re backed by leading venture investors in the defense ecosystem and led by founders with track records at Meta, SpaceX, Epirus, and the U.S. Department of Defense. Equal Opportunity Employer CX2 is committed to equal employment opportunity. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, disability, veteran status, or any other protected characteristic under federal, state, or local law, including those with a criminal history, in compliance with the CA Fair Chance Initiative for Hiring Ordinance. To view CX2's privacy policy, please visit: https://www.cx2.com/privacy

Job Description Nuclear Engineer Radiant is seeking a highly motivated nuclear engineer responsible for developing nuclear engineering solutions for our Kaleidos microreactor. This may include nuclear engineering areas such as radiation shielding, criticality safety, accident dose consequence, reactor physics modeling and design, transient analysis, and radiation detection. You will lead and own nuclear engineering initiatives and studies, strategic direction, and work closely with a collaborative nuclear and engineering team in a fast-paced startup environment. The ideal candidate is passionate about advanced reactor design, detail-oriented, effectively communicates, and a tenacity to solve interesting technical challenges. Responsibilities & Duties Ownership of Nuclear design and analysis, examples include: Shielding: Operational dose and shutdown activation analysis, waste categorization, and alignment of shielding design to customer and regulatory requirements Neutronics: Analysis of ex-vessel reactor fluxes and energy deposition, criticality safety, and verification and validation (V&V) of the nuclear toolbox and reactor models Accident and Dose Consequence: Radiological dose consequence from different accident scenarios for the Kaleidos demonstration and production units Transient Analysis: Run coupled neutronics and thermal calculations to further understanding of the reactor dynamics of the Kaleidos reactor design Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication. Other nuclear design and analysis duties as assigned Required Qualifications & Skills Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution 1-2+ years of nuclear engineering industry experience (MS equivalent to 2 yrs). Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or another scientific computing language Basic knowledge of thermal hydraulic principles. Self-motivated with strong organizational, written, and oral communication skills Experience working in an engineering organization and developing high-quality work Desired Qualifications & Skills Experience with variance reduction techniques and associated software (Attila4MC and/or ADVANTG) is a plus Strong experience with OpenMC, Serpent, MCNP, Attila4MC, MOOSE, RELAP, Pronghorn, GRIFFIN, or other similar nuclear software packages Competency in distributed software development processes and high-performance computing environments Familiarity with CAD design software (NX, SolidWorks, and/or SpaceClaim) is a plus Familiarity with dose consequence methods and software such as MAACS or NRC-RADTRAN At least 1 year of software development or scripting experience Hands-on experience designing hardware and/or performing tests Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $106,500 - $146,475

Job DescriptionDescriptionAs a Technical Business Development Manager at Impulse, you will help lead ourdefense-focused growth initiatives across space mobility, space control, space domain awareness, and missile defense. This role requires a deep understanding of spacecraft systems, orbital mechanics, and launch services, and the ability to translate that expertise into compelling solutions for national security stakeholders. As a key member of the Business Development team, you will shape emerging requirements, engage early with acquisition offices, and lead capture strategies that align with Impulse’s roadmap for responsive and resilient space capabilities —particularly in on-orbit servicing, autonomous space systems, and tactically responsive space missions. Responsibilities • Develop and execute business development strategies for defense markets, with a focus on space mobility, space control, space domain awareness, and missile defense, • Identify and qualify new opportunities for DoW, USSF, MDA, and SDA customers, • Engage early in program formulation to shape requirements through white papers, CONOPS, and system architecture trades, • Collaborate with internal engineering and mission teams to craft compelling solutions and white papers, • Lead capture efforts, proposal strategy, teaming discussions, and stakeholder outreach, • Represent Impulse Space at key industry days, technical forums, and classified engagements, • Maintain situational awareness of acquisition pathways (e.g., OTAs, MTA, SBIR/STTR, IDIQ) and upcoming solicitation, • Work closely with executive leadership to align defense pursuits with long-term strategic objectives Minimum Qualifications • 5+ years of experience in business development, capture, or program management, or technical positions in the national security space domain, • Demonstrated experience with the U.S. Department of War, particularly U.S. Space Force, MDA, SDA, and relevant IC customers, • Demonstrated track record of shaping and winning defense programs or advanced concept studies, • Strong technical fluency in spacecraft subsystems, mission design, launch integration, or space vehicle operations, • Strong communication and relationship-building skills with both technical and executive stakeholders, • Ability to work on-site at our Redondo Beach facility and travel as needed (up to 25%), • Active TS/SCI clearance or eligibility to obtain one Preferred Skills and Experience • 8+ years of experience in national security space, preferably involving space mobility, space control, SDA, or missile defense systems, • Prior experience with space mobility, space control, space domain awareness, or missile defense systems, • Technical degree (B.S. or higher) in Aerospace Engineering, Systems Engineering, Physics, or a related field, • Experience with early-stage or high-growth aerospace companies Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job Description Divergent is a technology company that has architected, invented, built, and commercialized an end-to-end factory system called the Divergent Adaptive Production System (DAPS) that comprehensively uses machine learning to optimally engineer, additively manufacture, and flexibly assemble complex integrated vehicle structures and subsystems. Products created using DAPS are superior in performance, lower in cost, rapidly customizable to meet mission and customer-specific requirements, faster to market, and scalable on demand to high volume production. Divergent is a qualified Tier 1 supplier to global automotive OEMs, and Divergent is now expanding to support mission critical needs in the Aerospace and Defense sector. Join us to be a part of this transformative journey, where your impact will shape the future of technology and production. Purpose Divergent is seeking an experienced and motivated analysis engineer to support the next generation of industry-leading vehicle development. We're committed to transforming vehicles' structural systems away from traditional manufacturing by using new materials and new technologies. To do this, we need a forward-looking and innovative engineer who will help shape the future of industrial manufacturing. The Structural Analyst will build and manage FE models of structural components or full system architectures for a variety of vehicle platforms and perform detailed engineering analysis on structural components and systems using CAE programs. This position requires to work closely with inter-group engineers to understand manufacturing/design capabilities and limitations to ensure proposed design changes can be efficiently produced and assembled. Absorbing the latest technologies and collaborating successfully in a team environment is essential to ensure cross-functional requirements are met while achieving project targets. The Role • Build up and analyze FE Models of Node™-based vehicle structures for aerospace flight applications or automotive use cases including validation using hand calculations and optimization., • Apply cutting-edge FE/CAE methodology including nonlinear geometry / nonlinear material / implicit and explicit techniques to address complicated multi-physics problems., • Present technical analysis summary/reports efficiently at meetings and to other relevant engineers., • Create, refine, and execute new technical solutions for aerospace structures to support external customer programs and joint development efforts., • Work collaboratively in a team environment within the DAPS Product Engineering team and cross-functionally with other disciplines to efficiently design and release structures that are optimized for mass, efficient production, and assembly., • Work cross-functionally to implement cost reduction, methods and product improvements, and support prototype and production build activities.Basic Qualifications, • Ability to lawfully access information and technology that is subject to US export controls, • BS in Mechanical / Aerospace Engineering with Minimum GPA of 3.2 or higher., • 0-2 years of experience in aerospace / automotive structural analysis or equivalent., • 0-2 years of experience in analysis software packages such as Nastran, Optistruct, ABAQUS and/or LS-Dyna., • New Grads of Fall 2025/Spring 2026 with strong foundation in Mechanical / Aerospace Engineering will also be considered., • Outstanding comprehension of solid mechanics., • Solid understanding of linear/nonlinear behaviors of advanced materials (composites, adhesives, metals) to achieve lightweight structural solutions., • Solid interpersonal skills and motivated self-starter who can manage personal workload and execution to tight schedule.Preferred Qualifications, • 1-2 years of industry experience in non-linear, dynamic stiffness, and durability analyses of structural components preferred., • Material characterization and component / system-level CAE – physical test correlation experience is a plus., • Structural Opt - imization experience., • Proficient with Altair Hypermesh or Beta CAE ANSA preprocessors., • Experience with fast-phase start-up experiences.Work Environment, • Work is performed in an office environment and requires the ability to operate standard office equipment and keyboards.Compensation At Divergent, our pay range is based on the level of the job. For this role, we will consider candidates at levels PNG E03 - PNG E04 as evaluated through our interview process. • PNG / E03: $100,980 - $138,820, • PNG / E04: $116,600 - $160,325 Pay Range$100,880—$247,005 USD What We Offer: • Holistic Compensation Package: Enjoy a world-class compensation package that includes a competitive salary, equity plan, and discretionary results-based incentive bonus opportunities, ensuring you're truly valued for your contributions., • Wellness and Time Off: Embrace a healthy lifestyle with paid vacation, sick time, and company holidays, including a year-end shutdown to recharge. We support growing families with paid parental leave, recognizing the importance of bonding time., • Comprehensive Health and Wellness: Prioritize your well-being with our comprehensive health and wellness benefits, offering both HMO and Premium PPO options. Additionally, benefit from company-sponsored life insurance and short and long-term disability coverage for peace of mind., • Investment in Growth: We're committed to your professional development. Take advantage of reimbursement opportunities for learning and development initiatives, empowering you to continuously expand your skill set and reach peak performance., • Collaborative and High-Performing Environment: Join our collaborative, dynamic, and high-performing team within a fast-paced, mission-driven company. Together, we're disrupting the traditional manufacturing industry, fostering innovation, and integrating people and technology to reduce our footprint. Equal Employment Opportunity Divergent is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected characteristic. Divergent provides affirmative action in employment for qualified Individuals with Disabilities and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act. EEO Poster In order to adjust to changes in our business, it may become necessary to add, remove or modify certain duties and responsibilities, or to reassign you to another job position. From time to time you may be asked to work on special projects or to assist with other work. Your cooperation and assistance in performing such additional work is expected. E-Verify: Right to Work Our company participates in E-Verify. E-Verify is a program that electronically confirms a candidate's eligibility to work in the United States after completing the Employment Eligibility Verification (Form I-9). The information provided on the Form I-9 is compared to the records contained in the Social Security Administration and Department of Homeland Security (DHS) databases. This helps employers verify the identity and employment eligibility of newly hired employees. Eligibility to Work Poster (English) | Eligibility to Work Poster (Spanish) Los Angeles Fair Chance Initiative for Hiring Ordinance (FCIHO) Pursuant to the Los Angeles Fair Chance Initiative for Hiring Ordinance (FCIHO), we will consider for employment qualified applicants with arrest and conviction records. No agencies, no solicitations, and no calls please.

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a Senior Controls Systems Engineer to lead the design, implementation, and validation of autonomous control systems for nuclear microreactors. In this role, you will own control system development end-to-end—from requirements definition through operational deployment—including algorithm development, modeling and simulation, embedded implementation, and system validation. You will design and integrate tightly coupled control functions spanning reactivity control, primary loop mass flow, alternator/generator speed, and multi-reactor coordination on microgrids. The ideal candidate is comfortable working within regulatory environments, developing autonomous and adaptive control strategies, and performing system-level analysis of nonlinear, coupled dynamic systems. This role requires close collaboration with multidisciplinary engineering teams responsible for hardware, software, and system integration. Responsibilities & Duties: Serve as Responsible Engineer with full technical ownership of Kaleidos control systems, including generator, supervisory, and plant-level controls. Design and implement subsystem control architectures, including Reactor reactivity control mechanisms, Electrical power conversion and grid interface controls, Generator and alternator speed control (FOC, SVM) Develop control algorithms, embedded software, and analytic models to derive and flow down requirements to components and subsystems. Perform system-level modeling and analysis of coupled linear and nonlinear dynamics. Lead control system prototyping, simulation, hardware testing, validation, and verification activities. Develop and execute methods for analyzing control system performance, robustness, and stability. Review and analyze test data to validate control performance and inform design iteration. Author technical documentation and support regulatory review and licensing of control systems. Collaborate closely with mechanical, electrical, nuclear, and software engineering teams to ensure successful system integration. Required Qualifications & Skills: Bachelor's and master's degree or higher in Electrical Engineering, Mechanical Engineering, Physics, Nuclear Engineering, or a related discipline. 5+ years of experience in dynamic system modeling, control algorithm development, simulation, testing, and auto-code generation using MATLAB/Simulink, including deployment to embedded targets. 5+ years of experience designing, implementing, and calibrating controllers for linear and nonlinear dynamic systems. Deep expertise in classical control theory, including: Stability analysis, On/off and PID control, Sliding mode control, Multivariable control, Gain scheduling, Reference tracking, bandwidth design, controllability, and observability analysis Hands-on experience designing controllers and observers for stochastic systems. Hands-on experience designing observers and estimators for linear and nonlinear systems. Experience modeling, simulating, and testing complex coupled dynamic systems. Expertise in Monte Carlo analysis, uncertainty quantification, and system identification. Familiarity with industrial and embedded communication protocols, including EtherNet/IP, EtherCAT, CANOpen, Ethernet, and RS-422/485. Desired Qualifications & Skills : PhD in Electrical Engineering, Mechanical Engineering, Physics, Nuclear Engineering, or a related discipline. 7+ years of experience in control systems engineering. Hands-on experience designing motor controls, battery controls, and power electronics control. Experience with autonomous system diagnostics, including fault detection, isolation, and recovery (FDIR). Experience with permanent magnet synchronous motor control, including FOC, VSM, and sensorless techniques. Experience with turbomachinery control, including turbines or jet engines. Experience with microgrid control and multi-source power systems. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $158,000 - $219,450

Job DescriptionSpace Systems Integration (SSI) is a fast-growing engineering company that provides aerospace solutions to a variety of government and commercial customers. Our employees are forward-thinking, self-directed individuals who are committed to solving our customers’ technical challenges. SSI is seeking a Senior RF Systems Engineer for a role in El Segundo, CA. Senior RF Systems Engineer will have in-depth knowledge of digital signal processing, signals, remote sensing, mission analyses, and system engineering. You will provide subject matter expertise to support customer decisions with respect to contractors’ development of spaceborne RF signal processing payloads, ground processing systems, and overall mission capabilities. Role and Responsibilities include: • Responsible for acting as primary technical oversight for the development, build, verification and deployment of Space RF payloads, providing Government leadership, as needed, recommend course corrections to the payload design and build through delivery., • Requirements generation., • Evaluation and compliance assessments to generated requirements and requirements flow down., • Concept design evaluation and analysis of alternatives., • Assessments of Critical Technology Elements (CTE), Technology Readiness Assessments (TRAs) and Manufacturing Readiness Assessments (MRAs)., • Concept of Operations (CONOPS) development., • Provide technical oversight of payload integration process onto candidate spacecraft., • Provide technical oversight of transition to operations to include the development, operator training, payload initialization and checkout, and on-orbit operations., • Responsible for assessing proposed payload design updates and understanding all performance and spacecraft impacts due to these updates., • Responsible for performing assessments of risk reduction plans associated with improving the maturity of payload design and hardware., • Responsible for working with contacts at prime and subcontractors to ensure work is on schedule and progressing.Required Qualifications:, • Bachelor's degree in electrical engineering or a technical field such as Physics, Math, or Aerospace Engineering with 14 years or more of experience in relevant field or Master's degree in electrical engineering or a technical field such as Physics, Math, or Aerospace Engineering with 12 years or more of experience., • Experience with spaceborne RF payloads, signal processing, signals, mission data processing., • Ability to analyze, discover and find solutions for technical issues in relevant technology., • Working knowledge of orbital mechanics and environmental effects on spaceborne RF payloads., • Experience applying Systems Engineering principals to the execution of payload development, build and I&T onto spacecraft., • Good communication skills to peers and customer leadership., • Active TS clearance with in-scope T5/SSBI is required, along with SCI eligibility and participation in Continuous Evaluation., • Must meet all requirements for SCI and SAP access and be willing to undergo a polygraph examination., • Travel is 10%.Desired Qualifications:, • 16 years or more of experience with RF payloads., • Experience with integration & test of spaceborne RF payloads onto spacecraft., • Familiarity with DoW acquisition processes., • Experience as a project manager on space payload program or IPT., • Ability to generate link budgets for end-to-end space to ground Comm systems and/or RF Payloads. Target salary range: $190,000 - $220,000. The estimate displayed represents the typical salary range and bonus potential for this position based on experience and other factors. We offer medical/dental/vision benefits and 401k contribution. Space Systems Integration provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. #ssi #weknowhowtobuildit #spacejobs

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a driven Senior Thermal Modeling Analyst with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities & Duties: Own and execute thermal CFD analysis to evaluate design and performance of Kaleidos reactor systems. Develop and implement solutions to model turbulent flow, heat transfer, and multi-physics interactions. Identify and implement CFD simulation best practices. Build automated workflows to expand simulation capabilities, accuracy, and efficiencies. Collaborate across teams and disciplines to support design of reduced order analysis methods. Required Qualifications & Skills: Bachelor’s degree in engineering, physics, or similar field from an accredited institution. 5+ years of relevant industry experience. 5+ years experience with STAR-CCM+, Ansys Fluent, or other commercial CFD code. Proficiency with CAD software (Siemens NX). Mastery of finite element and computational fluid dynamics modeling principles and methods. Experience communicating and distilling information with cross-functional teams. Desired Qualifications & Skills: Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $139.5K - $224.7K

Job Description Hadrian - Manufacturing the Future Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships up to 10x faster and up to 2x cheaper. By combining advanced software, robotics, and full-stack manufacturing, we are reinventing how America produces its most critical parts. We’re accelerating our mission with the launch of Factory 3 in Mesa, Arizona, a 290,000-square-foot facility creating 350 new jobs. We are expanding rapidly to support thousands of future hires, launching Hadrian Maritime to expand into naval production, and introducing a Factory-as-a-Service model that delivers complete systems instead of individual parts. Hadrian is backed by leading investors including T. Rowe Price, Lux Capital, Founders Fund, and Andreessen Horowitz, our fast-growing team is united around reindustrializing American manufacturing for the 21st century and beyond. The Role As a Test Automation Engineer, you will own comprehensive test engineering for Special Projects hardware from early bring-up through production ramp. You will define what gets tested, where it gets tested, how the measurement is made, how limits are defended, and how test data drives action across design, supplier quality, manufacturing, and operations. This role is hands-on and production-facing. You will build test stations, fixtures, harnesses, instrumentation racks, automated sequences, data pipelines, and operator workflows for incoming component test, development / bring-up test, qualification / reliability test, in-process checks, and end-of-line acceptance. We are looking for an engineer who can own the whole test problem, not just execute procedures, including measurement design, ATE / fixture architecture, test software, limits-as-data, MSA / gauge R&R, root cause analysis, station commissioning, and production handoff. What You'll Do Define and own test architecture spanning incoming inspection, bench bring-up, in-process checks, qualification/reliability, and end-of-line acceptance — including measurement design, ATE/fixture architecture, limits, and production handoff Design and build production-grade test fixtures, harnesses, load banks, safety interlocks, and instrumentation racks; integrate instruments including DMMs, oscilloscopes, SMUs, electronic loads, programmable power supplies, hipot/insulation testers, LCR meters, DAQ, and machine-vision systems Develop and maintain automated test sequences in Python, LabVIEW, TestStand, or equivalent; build structured data capture with full traceability across station, DUT, instrument, calibration, operator, limits, and results Commission stations on the floor, support pilot builds, drive run-at-rate readiness, and troubleshoot false rejects, yield drops, station drift, fixture wear, supplier escapes, and intermittent failures Partner cross-functionally with Design Engineering on DFT and failure isolation, Supplier Quality on incoming drift and containment, and Operations on usability and serviceability; codify reusable infrastructure including sequencer libraries, fixture standards, limits-as-data, and troubleshooting runbooks What We're Looking For 5+ years in test engineering, ATE/EOL development, hardware bring-up, or manufacturing test Proven track record taking at least one test station or automated test platform from requirements through production commissioning Strong electrical test and measurement fundamentals: accuracy, uncertainty, grounding, shielding, isolation, calibration, and safety Hands-on experience with Python, LabVIEW, TestStand, or equivalent automated test frameworks Practical knowledge of MSA/Gauge R&R, Cpk, SPC, false reject rate, and root cause analysis across design, fixture, software, and supplier failure modes Bachelor's degree in EE, Electronics, Mechatronics, Physics, or related STEM — or equivalent direct experience. What Will Set You Apart Owned an end-of-line station from zero to volume with accountability for takt, FPY, false reject, uptime, and escape rate High-current/high-power test experience including electronic loads, isolated measurement, and stored energy safety MES/data pipeline integration using SQL, REST, MQTT, or OPC-UA PCB/breakout-board design for custom test interfaces, signal conditioning, or protection circuits Familiarity with IEC 61010, NFPA 70E, MIL-STD, JEDEC, or similar electrical safety and reliability standards Masters degree in related STEM fields Compensation $150,000 - $250,000 (actual range may vary based on experience). This is the lowest-to-highest salary we reasonably and in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee's pay position within the salary range will be based on several factors, including, but not limited to, relevant education, qualifications, certifications, experience, skills, geographic location, performance, and business or organizational needs. Benefits for Full-time Employees Medical, dental, vision, and life insurance plans for employees 401k Relocation support may be provided for certain situations, based on business need. Flexible vacation policy Equity ITAR Requirements To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. Hadrian Is An Equal Opportunity Employer It is the Company’s policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.

Job Description Senior Thermal Modeling Engineer Radiant is seeking a driven Senior Thermal Modeling Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties: Own and execute thermal CFD analysis to evaluate design and performance of Kaleidos reactor systems. Develop and implement solutions to model turbulent flow, heat transfer, and multi-physics interactions Identify and implement CFD simulation best practices Build automated workflows to expand simulation capabilities, accuracy, and efficiencies Collaborate across teams and disciplines to support design of reduced order analysis methods. Required Qualifications and Skills: Bachelor’s degree in engineering, physics, or similar field from an accredited institution. 5+ years of relevant industry experience. 5+ years experience with STAR-CCM+, Ansys Fluent, or other commercial CFD code. Proficiency with CAD software (Siemens NX). Mastery of finite element and computational fluid dynamics modeling principles and methods. Experience communicating and distilling information with cross-functional teams. Desired Qualifications and Skills: Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $139.5K - $224.7K

Job DescriptionSalary: $80,000 - $135,000 Job Summary: System Engineer - Physics is responsible for conducting architectural assessments, breakdown of the system into components, the component interactions and interfaces, and the technologies and resources to be used in the design. Leads the system design, development, testing, and implementation of all aspects of the HPM System development lifecycle, under the leadership of the given Program Manager. Outlines integrated solutions that meet performance, usability, reliability, and security needs. Develop technical documentation on applications and systems. Facilitates and leads in the evaluation and selection of commercial-off-the-shelf product evaluations. Additional responsibilities include analyzing engineered products to meet customer use-cases and assure compatibility of all physical, functional, and program interfaces to meet system requirements. Essential Job Duties and Responsibilities: • Works as part of an Integrated Product Team (IPT) as Systems Engineer under the direction of the Director of Systems Engineering and with the given Program Manager, • Support the development of subsystem and system requirements by leading requirements IPT and working group meetings with the customer and subcontractors., • Identify and perform hands-on evaluation of system components., • Review, develop, and document system-level operational concepts, • Provides effective and efficient system engineering support during the conceptual design, detailed design, integration, and test phases of a product development program and production delivery, supporting on-time completion of assigned tasks, • Maintain compliance with DoD contract requirements, including maintaining an active SECRET clearance and ensuring adherence to relevant regulations and standards., • Performs requirement flow-down and traceability and evaluating the verification test results to satisfy requirements, • Drives continuous improvement initiatives in the areas of analysis, monitoring and performance management, • Sets systems and test requirements of new products and makes decisions relative to system architecture, components selection, and customer use-cases, • Works to support multiple programs/products simultaneously, • Prepares and presents design and analysis summary material during internal and external design reviews, • Documents system designs using ThinKom records retention procedures, • Follows Company design procedures and corporate policies, • Other tasks, as assigned from time to time Skills and/or Experience Needed: • BS, MS, or PhD in Physics, Electrical Engineering, or related field, • Technically proficient System Engineer with strong architecture skills, subject matter expertise in High Power Microwave Systems, and solid knowledge of all major components of HPM Systems, • Minimum of 2 years of experience in systems engineering, with a track record of successfully architecting, developing, and validating complex High Power Microwave Systems, • Hands-on expertise with Vector Network Analyzers, oscilloscopes, spectrum analyzers, and other RF measurement equipment., • Active SECRET clearance or the ability to obtain and maintain a security clearance for DoD contracts, • Technical experience and familiarity with the directed energy & weapon systems industry and integrated systems development, • Experience with simulation tools such as Python, COMSOL Multiphysics, CST Microwave Studio, Ansys HFSS, • Technically proficient in MS Office products Additional Skills Desired, but not required: • Experience working on DoD contracts, with a strong understanding of defense acquisition processes and requirements Language Skills: • Interpersonal skills to effectively work with ThinKom people internally as well as working effectively with suppliers and customers, • Ability to effectively present information in team meetings and design reviews, as needed Other Abilities: • Ability to communicate clearly in a well thought out manner, verbal and written, • Must have substantial problem-solving abilities Additional Requirements: • Must be eligible to obtain and hold a US DoD Security Clearance in support of US Government contracts/ subcontracts Physical Demands: • Ability to travel up to 10% of the time., • This position uses a computer terminal to access, input, and retrieve data., • This position may be subject to interruptions that may cause a change in immediate priorities and/or work focus., • While performing duties to this position, employee is occasionally required to stand, walk, sit, stoop, reach, and/or bend., • May occasionally lift and/or move files or boxes up to 50 pounds., • May be subjected to occasional irregular or extended work hours., • May be required to sit for extended lengths of time., • Must be able to work in an environment that may be subjected to occasional loud noises, hazardous materials and chemicals. Salary Range - $80,000 - $135,000 ThinKom offer generous benefits including: Medical, Dental, Vision, Disability, Life, 401k Matching (4%), PTO, paid Holidays and Bonus Plan. ThinKom Solutions is an Equal Employment Opportunity Employer. ThinKom Solutions is a Drug and Alcohol-free working environment with a zero-tolerance policy

Job Description Hadrian - Manufacturing the Future Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships up to 10x faster and up to 2x cheaper. By combining advanced software, robotics, and full-stack manufacturing, we are reinventing how America produces its most critical parts. We’re accelerating our mission with the launch of Factory 3 in Mesa, Arizona, a 290,000-square-foot facility creating 350 new jobs. We are expanding rapidly to support thousands of future hires, launching Hadrian Maritime to expand into naval production, and introducing a Factory-as-a-Service model that delivers complete systems instead of individual parts. Hadrian is backed by leading investors including T. Rowe Price, Lux Capital, Founders Fund, and Andreessen Horowitz, our fast-growing team is united around reindustrializing American manufacturing for the 21st century and beyond. The Role We are seeking a skilled and driven backend software engineer with experience in robotics to join Hadrian’s Factory Automation division, a team dedicated to building and scaling Hadrian’s core machining business. This role is focused on the development of robotic software and automated cell control code that drives high-precision, scalable manufacturing. As part of this team, you will lead software engineers and robotics engineers to bring advanced production systems from concept to operation. You will help execute our automation roadmap to scale Hadrian to be multi-factory across the US. We are looking to add a curious and self-motivated expert to join our already world class team. What You’ll Do Develop software to interface with physical systems such as CNC machines and other manufacturing equipment. Design motion paths and write code to control manufacturing robots. Build robot APIs and interfaces for higher level cell control software. Collaborate with engineers and operations to conceptualize, deploy, and upgrade manufacturing cells. Ensure seamless software integration of automated manufacturing systems into Hadrian factories. Drive technical decision-making processes and set engineering direction while also building a culture of continuous improvement. Develop standards, documentation, and procedures for scalable automation deployment. Encourage software development best practices and foster an environment that encourages engineers to build amazing systems. Build data logging pipelines for connected devices that feed operational planning and factory scheduling. What We’re Looking For Bachelor's degree in an engineering, physics, or computer science discipline. 10+ years of full stack software engineering experience. Deep experience architecting and operating fault-tolerant, distributed, autonomous systems. Experience developing software to interface with physical systems in a field such as manufacturing, industrial automation, or 3D printing. Experience with creating, testing, and debugging industrial robot programs. Demonstrated ability to make decisions with incomplete information and deliver complex systems on schedule. Expertise in secure software practices, cybersecurity for IoT devices, and regulatory compliance. Excellent written and verbal communication skills. Compensation For this role, the target salary range is $220,000 - $280,000 (actual range may vary based on experience). This is the lowest to highest salary we reasonably and in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee's pay position within the salary range will be based on several factors, including, but not limited to, relevant education, qualifications, certifications, experience, skills, geographic location, performance, and business or organizational needs. Benefits for Full-time Employees Medical, dental, vision, and life insurance plans for employees 401k Relocation support may be provided for certain situations, based on business need. Flexible vacation policy ITAR Requirements To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. Hadrian Is An Equal Opportunity Employer It is the Company’s policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role We're building a new team to own Radiant's internal data infrastructure, executive analytics, and AI capabilities. As a Senior Data Platform Engineer, you'll be hands-on building the integrations and pipelines that connect Radiant's operational systems, Finance, HR, Supply Chain, Manufacturing, and Recruiting, into a unified data platform. Your first priority will be the ION-Ramp integration: building the pipeline that enables three-way matching (PO + Receipt + Invoice) between our manufacturing execution system and payments platform. This directly reduces manual work for the Finance team. From there, you'll expand to connect 9 enterprise systems, build dbt transformation models, and ensure data quality across the platform. Responsibilities & Duties: Build integrations: Configure Fivetran connectors, build custom pipelines, and connect 9 enterprise systems (ION, Ramp, QuickBooks, Rippling, Ashby, Salesforce, SharePoint, Smartsheet, DocuSign) Develop the ION-Ramp pipeline: Build the Snowflake → Databricks → Ramp pipeline that enables three-way matching for Finance Write dbt models: Transform raw data into clean, documented, tested models for dashboards and analytics Ensure data quality: Implement testing, monitoring, and alerting for data pipelines; catch issues before they reach dashboards Support dashboards: Work with stakeholders to ensure the data models support Finance, Operations, and HR/Recruiting dashboards. Document everything: Maintain clear documentation for pipelines, models, and data definitions Required Qualifications & Skills: Bachelor's degree in computer science, physics, or a similar field. 4+ years of data engineering or software engineering experience. Strong experience in Python, C++/C, Java or a similar language. Experience with data warehouses, Databricks, Snowflake, BigQuery, or Redshift ETL/ELT pipeline development, Fivetran, Airbyte, Stitch, or custom pipeline experience API integration experience, REST, GraphQL; you're comfortable reading API docs and building integrations with enterprise SaaS tools Data modeling skills, dimensional modeling, schema design, understanding of how data will be used downstream Desired Qualifications & Skills: 6+ years of data engineering or software engineering experience Background in hardware or hardtech companies—you understand manufacturing, supply chain, and physical product development Experience with dbt (data build tool) Experience with data quality frameworks and testing (Great Expectations, dbt tests, etc.) Comfortable building lightweight internal tools—Python/Flask, basic frontend—or using AI coding assistants (Cursor, Copilot) to extend your capabilities Familiarity with MES, ERP, or supply chain systems (ION, SAP, NetSuite, etc.) Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $158,000 - $219,450

Job DescriptionDescriptionAs an RF Test Engineer at Impulse Space, you will support the development, integration, and testing of wireless spacecraft and ground communication systems. You will work closely with RF, embedded, software, and mechanical engineers to develop test infrastructure, automate validation workflows, and help characterize system performance across a range of communication hardware. This role is focused on RF test automation, fixture development, and hands-on testing of wireless systems and modulated communication waveforms. Responsibilities • Design and support RF test fixtures and supporting test infrastructure, • Develop Python software and scripts for automated RF testing, instrumentation control, and data collection, • Operate and integrate common RF lab equipment including spectrum analyzers, signal generators, network analyzers, oscilloscopes, power meters, and software defined radios, • Support testing and characterization of modulated RF waveforms and communication links, • Work with RF and embedded software engineers to debug and validate wireless hardware performance, • Develop and document RF test procedures for engineering and production environments, • Support RF hardware bring-up, integration, troubleshooting, and system-level validation testing, • Assist with system-level RF testing including coexistence (CoEx), desense, and over-the-air (OTA) test activities, • Collaborate across hardware, software, and manufacturing teams to improve test coverage and reliability Minimum Qualifications • Bachelor’s degree in Electrical Engineering, Computer Engineering, Physics, or related technical field, • 2+ years of experience writing Python for test automation, data analysis, or hardware validation, • Familiarity with RF lab equipment such as spectrum analyzers, signal generators, oscilloscopes, and network analyzers, • Understanding of RF fundamentals and wireless communication systems, • Exposure to modulated waveforms and RF measurement techniques, • Familiarity with RF system parameters such as channel power, EVM, Es/N0, C/N0, modulation quality, and bandwidth, • Experience documenting test procedures or validation results, • Strong troubleshooting and debugging skills, • Comfortable working hands-on in a lab environment Preferred Skills and Experience • Experience developing automated test systems or RF test fixtures, • Familiarity with SDR platforms or GNU Radio, • Experience testing wireless communication systems or digital modulation schemes, • Familiarity with embedded Linux, microcontrollers, or FPGA-based systems, • Experience with beamforming, phased arrays, or multi-antenna RF systems, • Familiarity with satellite communication protocols such as CCSDS or DVB-S2, • Experience with RF production, integration, environmental, or OTA testing, • Experience working in a fast-paced development environment Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job DescriptionDescriptionVenturi Astrolab, Inc. (Astrolab) is pioneering new ways to explore and operate on distant planetary bodies. We are singularly focused on designing, building, and operating a fleet of multi-purpose commercial planetary rovers to extend and enhance humanity’s presence in the solar system. We are seeking motivated, creative, and exceptional people to join our world-class team. As an EMC Engineer, you will be responsible for ensuring Avionics components are designed to endure the harsh electromagnetic environmental effects of interplanetary space. You will play a pivotal role in defining the design criteria for state-of-the-art avionics and electro-mechanical systems for the lunar surface with a strong focus on electromagnetic compatibility, in-space charging effects, and interdisciplinary requirements. You will be joining a company at the ground-level and have immense influence over the future of lunar exploration. What you'll do: • Collaborate closely within cross-functional Engineering teams to capture requirements, lead design trades with respect to EMI/EMC, and integrate the design into the rover systems., • Contribute to full avionics and electro-mechanical systems/subsystems from system to component level with specific focus on E3 design criteria and operational/survivability requirements., • Analyze and contribute to designs relating to the effects of circuit and power system grounding architectures, structural electrical bonding, circuit isolation, shielding effectiveness, radiated/conducted emissions and susceptibility, near field/far field electromagnetics, transient protection, signal and power integrity, and general RF compatibility., • Troubleshoot EMI issues from board to system level., • Operate and automate a variety of EMI, RF, and electronics test equipment (spectrum analyzers, network analyzers, signal generation, oscilloscopes) within the context of avionics development and in house EMC testing., • Create and update technical documentation including command media, system diagrams, schematics, interface control documents, procedures, work and/or build orders, vendor and payload requirements, and test/anomaly reports., • Support flight hardware component qualification and spacecraft integration testing, including production issue dispositions, troubleshooting failures, and managing overall spacecraft risk. What you'll bring: • Bachelor’s degree in electrical engineering, physics, or other engineering discipline., • 5+ years of experience in EMI/EMC requirements, analysis, design, and testing for spacecraft systems and/or avionics component design (academic and personal projects apply)., • Proficient in the use of lab equipment such as oscilloscopes, multimeters, signal generators, logic analyzers, etc., • Proficient with Analytics/Modeling/Simulation tools such as LTSpice, and experience with electrical circuit analysis using simulation tools such as Spice or equivalent., • Familiarity with SMC-S-016 testing requirements, and testing per SMC-S-016., • Knowledge of electrical safety and EMC commercial compliance standards and/or testing., • MIL-STD-461 experience across the full range of EMC test (radiated susceptibility, radiated emissions, conducted susceptibility, conducted emissions) standards., • Experience in high power avionics system designs for spacecraft including: LDO Regulators, Buck/Boost converters, power line filters and various spacecraft grounding schemes for high voltage systems., • Experience in motor controller system designs for brushless DC motors (BLDC) and permanent magnet synchronous motors (PMSM) in both low and high voltage systems., • Ability to read, interpret and follow circuit schematics, PCB layouts, engineering drawings, BOMs, cable harnesses, wiring schematics, interface diagrams, layout drawings, mechanical drawings, and CAD software., • Creative problem solver that can assess risk and make collaborative design and development decisions., • Strong presentation experience in highly technical design forums and reviews (Preliminary Design Reviews, Critical Design Reviews, Flight Readiness Reviews, etc.)., • Experience with NX or similar CAD software including electrical harness routing., • Experience with vehicle level testing including writing test procedures, creating robust and efficient test sequencing, and analytical data review to evaluate hardware health. What We Offer: • Join a team of best-in-class engineers building the foundation of planetary surface exploration, • Equity ownership in the company, • Comprehensive health benefits, including medical, dental, vision, and mental health support, • 401(k) plan with company match, • Flexible PTO and parental leave, • Home office set up reimbursement, • Fully flexible and remote friendly work environment, • Weekly lunch stipend, plus complimentary snacks and beverages on-site, • Once a month social hour on-site with food and drinks

Job DescriptionSpace Systems Integration (SSI) is a fast-growing engineering company that provides aerospace solutions to a variety of government and commercial customers. Our employees are forward-thinking, self-directed individuals who are committed to solving our customers’ technical challenges. SSI is seeking a Senior Digital MBSE Engineer for a role in El Segundo, CA. This role specialized in Systems of Systems (SoS) Architectures and provides systems engineering, mission architecting, and analysis support to the customer. These System Deltas oversee the planning, development, testing, deployment, integration, and sustainment of a portfolio that consist of Space Control capabilities. This position supports the architecting of the ground and space-based Space Control enterprise consisting of counter space operations such as Orbital and Spectrum Warfare as well as emerging capabilities to outpace the threat. Role and Responsibilities include: • Provide leadership advice on mission engineering strategies for SoS architectures and strategic messaging to key operational and government stakeholders., • Provide systems engineering and mission architecting support., • Technical requirements generation/review/compliance supporting space systems technical review and assessments., • Develop mitigation plans for discovered and recorded Risks, Issues, and Gaps (RIGs) to provide senior leadership the information needed to close RIGs and vulnerabilities., • Identify activities and functions critical to mission thread development, deriving and modeling the as-is and to-be functional and physical architectures., • Provide program and technical insight to the modeling and analysis staff regarding system architecture designs, interfaces, schedule, and assumptions., • Drive integration and utilization of Digital Engineering (DE) practices of Model-Based Systems Engineering (MBSE) and Modeling, Simulation, & Analysis (MS&A) to include the conversion of legacy Systems Engineering content into digital formats.Required Qualifications:, • Bachelor of Science in Engineering or a relevant discipline with 14+ years of experience with:, • Systems engineering and architecting for major systems acquisitions utilizing Digital Engineering methodologies., • Model-Based Systems Engineering (MBSE) methods and descriptive modeling frameworks such as SysML., • Experience in Cameo Systems Architect or SparX Enterprise Architect., • Understanding of DoDAF views for system of system architectures and plans., • Modeling Simulation and Analysis (MS&A) experience in parametric and physics-based assessment of systems., • Active TS clearance with in-scope T5/SSBI is required, along with SCI eligibility and participation in Continuous Evaluation., • Must meet all requirements for SCI and SAP access and be willing to undergo a polygraph examination.Desired Qualifications:, • Master’s Degree, 12+ years of relevant experience is preferred., • Fluency in Department of War architectural frameworks (e.g., DoDAF)., • Military Space Operations with an emphasis in Space Domain Awareness and Combat Power programs and capabilities., • Experience working in a development environment and/or U.S. Government weapons system program office., • Led the development of a Digital Engineering Thread utilizing MBSE and MS&A artifacts, leading to a validated and verified system architecture., • Professional certification (e.g., Professional Engineer, INCOSE CSEP, etc.)., • Knowledge of Digital Engineering and operational analysis processes and tools, as well as their application in producing data-driven analysis results. Target salary range: $210,000 - $235,000. The estimate displayed represents the typical salary range and bonus potential for this position based on experience and other factors. We offer medical/dental/vision benefits and 401k contribution. Space Systems Integration provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, or any other characteristic protected by federal, state, or local laws. #ssi #weknowhowtobuildit #spacejobs

Job DescriptionDescriptionAs an Optical Test Engineer at Impulse, you will be responsible for designing, procuring, assembling, and operating optomechanical test setups while working closely with a fast paced, agile team that produces high-performance spacecraft from clean sheet designs. Responsibilities • Design and build optical, mechanical, and electrical systems in support of spacecraft optomechanical components, • Fully own key test assets and major test programs while collaborating with wide ranging teams across the company, • Coordinate with external vendors and contractors to meet project technical and schedule objectives, • Perform test setup, hardware inspections, checkouts and troubleshooting as needed, • Conduct test operations geared toward rapidly developing hardware for spaceflight, • Resolve technical issues with innovative and resourceful solutions Minimum Qualifications • Bachelor’s degree in mechanical, optical, aerospace, electrical engineering or related field, • 3+ years of experience in hardware development testing, • Strong engineering fundamentals in optical, mechanical, and electrical analysis, • Prior hands-on operational experience working with test facilities, • Previously demonstrated ownership of test stand design and build-up, • Able to identify and procure appropriate test equipment, • Proficient with data acquisition and control methods, • Demonstrated ability of taking project ownership and working well in small teams Preferred Skills and Experience • Advanced degree in Optical Engineering, Physics, or related discipline, • 4+ years of experience in hardware development testing, • Demonstrated hardware testing experience with star trackers, cameras, lasers or other spacecraft optical components, • Experience with Zemax OpticStudio, Code V, or similar optical modeling tools, • Familiarity with environmental qualification testing for flight hardware, • Prior experience with optical alignment and precision metrology, • Experience in a startup or agile development environment Additional Requirements: • Flexible schedule and willing to travel as needed Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job Description Company Overview: Second Order Effects started in 2016 as a services firm, taking on other companies' hardest engineering problems from first principles. We grew into a solutions firm that designs and ships complete custom electronics and systems, including power electronics, RF, and control systems. We've completed over 250 projects for more than 100 clients. Our designs control rocket engines, manage satellite communications, instrument fusion reactors, and are enjoyed by consumers around the world. We approach problems from first principles. We break challenges down to their most fundamental components, which is how we find solutions that hold up across industries, use cases, and engineering functions. We focus on solving the right problems and building the teams to take them on. Because we believe that training and empowering others yields a greater impact than focusing on developing any specific technology, we expect every single member of our team to participate in building up those around them. In the past year, we've started taking our own concepts and spinning them out into separate companies that we believe will meet the emerging needs of our clients and the industry at large. The work is concentrating in frontier technology, including space, fusion and fission energy, and advanced vehicles. We currently have two spinout companies in stealth that we're working on. Information about SOE's mission, vision, and values can be found here. Examples of the projects SOE has worked on can be found here. The Role: As an Electrical Engineer, you will support the design, architecture, and implementation of high performance electrical systems across a diverse range of projects. You will work alongside a collaborative team of engineers to find and develop the right solutions for the problems at hand and client use case. If you're passionate about tackling mission-critical challenges and working across multiple industries, this is your chance to make a lasting impact and grow in a dynamic environment. Key Responsibilities: • Drive design efforts for electronic systems, including architecture and implementation details of circuitry and software/firmware, • Perform component selection and trade studies of different implementation options to best generate and satisfy design requirements, • Capture schematics and design PCB layouts, create component symbols and footprints, • Circuit simulation and thermal analysis of designs, including sizing of thermal management systems, • Develop firmware in C/C++ for microcontrollers, or digital design in Verilog HDL for FPGAs, • Write and execute test plans for device validation and performance characterization, • Take ownership of the design, development, testing, and end-to-end technical support for projects, • Assess design risks and develop mitigation strategies, • Create documentation for hardware, software and systems, • Interface with internal teams and external clients to conduct design reviews for hardware/electronic systems and code reviews for software/firmware/HDL Minimum Requirements: • Able to work 40 hours a week on-site in El Segundo, California, or Redmond, Washington, • Eligible to work on ITAR projects, • Bachelor's Degree (Electrical Engineering, Computer Science, Physics, Math, or related field) or equivalent experience, • 3+ years of applied experience with a demonstrated passion for engineering and technology development, • Excellent written and verbal technical communication skills; ability to explain technical concepts and their implications to non-technical audiences, • Experience in any common ECAD tool, such as Altium Designer, KiCad, Cadence, PADS, EAGLE, etc., • Experience with C/C++ firmware development or Verilog HDL development, • Experience in modeling, simulation, and testing of electronics, • Familiarity with standard digital communication methods including serial / UART, SPI, and I2C, • Expertise with one or more of the following: analog circuits, mixed-signal designs, embedded programming, RF, power electronics, or optical systems development Preferred Requirements: • Experience in team-based design and build projects (e.g., Formula SAE, Solar Car, CubeSat, Rover Challenge, etc.), • End-to-end electronics design experience: taking designs from requirements generation through schematic, layout, fabrication, and hardware bringup, • Experience with analog small-signal circuit design (filters, op-amp circuits, signal conditioning) and/or power electronics designs: regulators, load drivers, supply filters, protection circuitry, • Knowledge of PCB fabrication and assembly process, design for manufacture and design for assembly (DFM / DFA), familiarity with IPC and/or JEDEC standards, • Experience interfacing with PCB and assembly vendors to have designs fabricated, • Large-format or high-density or high-layer-count PCB design experience, preferably for aerospace, automotive, medical, or other high-reliability applications, • Expertise with Altium Designer or KiCad, • Familiarity with Python and/or MATLAB for data parsing and signal analysis, • Familiarity with LTSpice for circuit simulation, • Experience with a range of ARM Cortex-M devices (e.g., STM32, NXP S32K, TI TMS570, etc.) and Lattice or Xilinx FPGAs, • Excellent understanding of OS fundamentals (e.g., schedulers, memory management, network stacks, file system architectures, etc.) and computer architecture or digital design fundamentals, • Experience with continuous integration and testing (CI/CD) or related high-reliability software development strategies Compensation & Benefits: • Salary range dependent on leveling, • Engineer I: $100,000 - $130,000, • Engineer II: $125,000 - $170,000, • Senior Engineer: $155,00 - $200,000, • Equity (via ISOs) in Second Order Effects, Inc., • Equity (via PIUs) in our incubated companies (through our holding company, Second Order Holdings, LLC), • 100% employer-paid health insurance (Medical, Dental, Vision) for employees + 50% dependent coverage, • Flexible paid time off policy + 11 paid holidays + 12 paid sick days, • 401(k) retirement account and employer matching (Safe Harbor 4%), • Up to 22 weeks of paid parental leave dedicated to new child bonding, • Relocation assistance available if 50+ miles away from the office, • Electric Vehicle (EV) charging ports at our LAX office, • Daily catered lunches, snacks, and accessible kitchen ITAR Requirements: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Unfortunately, we are unable to provide sponsorship at this time. Equal Opportunity: Second Order Effects is proud to be an Equal Opportunity Employer; employment with SOE is governed on the basis of excellence and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

Job DescriptionAbout Epirus Epirus is a high-growth technology company developing solid-state, software-defined directed energy systems that enable unprecedented counter-electronics effects and power management solutions to optimize power efficiency in defense and commercial applications. With a constant emphasis on innovation, we are redefining the future of power to bring tomorrow's capabilities to life, today. And that's just the beginning. Job Summary: Epirus is seeking a Field Service Engineer (FSE) III with the ability to provide advanced technical support, troubleshooting, and operational oversight in support of Epirus High Power Microwave Counter Unmanned Aerial Systems (HPM-CUAS). This individual will work as a member of a small team with a primary focus on the maintenance, training support and sustainment of fielded HPM assets. The FSE will directly support the maintenance of the fielded HPM-CUAS equipment, re-installation of Line repairable units (LRUs), training, integration, and sustainment of these solutions with existing client infrastructure at CONUS and OCONUS locations. Candidate will provide hands-on support for HPM-CUAS technical, network, and integration projects. This role requires hands-on expertise in electrical, mechanical, and software systems, as well as the ability to work in high-pressure situations supporting defense operations. This position requires a high degree of technical skill, personal resilience and flexibility, strong interpersonal skills, and the ability to work as part of a cross-functional team in a variety of physical environments. Responsibilities: • Work closely with engineering teams to provide feedback on system performance and potential design improvements., • Coordinate with project managers, logistics personnel, and customers to ensure timely resolution of issues., • Conduct install/uninstall of HPM-CUAS systems in a variety of locations / environmental conditions to support client operations, test and evaluations, Tactics, Techniques and Procedure (TTP) / Doctrine development, and New Equipment Training (NET) courses., • Make recommendations on equipment modifications/upgrades based on experience gained through testing and operational use of HPM-CUAS systems., • Deploy overseas locations to perform technical inspections, system checks, fault diagnosis, identify cause of failures, and replace Line Repairable Unit (LRU), test and restore HPM-CUAS systems to full functionality., • Conduct advanced programming of HPM-CUAS systems (install/upgrade firmware, software upgrades, etc.)., • Work with the Epirus training and enablement team to develop and conduct training on the proper care, use, maintenance, and preventive maintenance of systems., • Work closely with engineering teams to provide feedback on system performance and potential design improvements.Basic Qualifications:, • Bachelor's degree in Electrical Engineering, Mechanical Engineering, Physics, or a related technical field AND minimum 5 years of related experience (or 3 years and a Master's degree)., • Proficiency in troubleshooting and repair of electronic and mechanical systems., • Knowledge of high-power RF generation, wave propagation, and directed energy principles., • Familiarity with test equipment (oscilloscopes, spectrum analyzers, RF power meters, etc.)., • Strong technical writing and verbal communication skills., • Ability to provide technical advice and guidance on installation, adaptation, configuration and/or enhancement of company technical products, programs, and systems., • Candidate must hold a valid U.S. passport or have the ability to obtain a U.S. passport., • Military experience with CUAS Systems (RF Detection, Radar, EO/ IR Optical systems, Command and Control (C2) Systems., • Experience working in field operations, including deployment in austere or challenging environments., • Experience working independently or as a team member to solve project and/or engineering problems., • Ability to use and communicate a wide variety of technical data from OEM manuals, engineering drawings, etc. to engineers as well as to non-technical system end users., • The position requires daily interaction with customers at multiple levels., • Candidate must possess and use a high degree of tact and interpersonal communication skills in daily interactions with team members, clients, vendors, and end users., • This position requires the ability to obtain and maintain a SECRET security clearance, which is issued by the U.S. government. U.S citizenship is required to obtain a security clearancePreferred Skills and Experience:, • Previous experience with HPM or other directed energy systems., • Certification in RF safety or related disciplines., • Military background or experience working with defense contractors., • Routine manual lifting of objects 50-80 pounds such as boxes and other equipment. Perform work in unusual and sometimes difficult positions such as climbing ladders; high lift equipment up to 40 feet, crawl spaces, above ceilings, etc. Manual dexterity required for frequent reaching, climbing, and lifting of moderate objects, operation of power and manual tools/equipment, and operating office equipment., • Typical overseas assignments are frequently performed in both internal and external environments with a variety of weather conditions. Ability to work under extreme hot or cold weather conditions with exposure to dust or dirt is routine and may require the use of protective personal equipment (PPE)., • This position will require overseas travel. Candidates should be willing to be on travel / TDY away from their home location 90 – 120-day durations, in hazardous duty locations., • FAA Part 107 certification ITAR REQUIREMENTS: • To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. People are the most important part of Epirus – and always come first. We don't believe in the word impossible and are always asking "why not" as work to usher in a new paradigm of power efficiency. Our fast-growing team is agile, creative, and innovative. We support a culture of constant learning and sense of belonging among our team members and know that mentorship matters. We embrace diversity, equity, and inclusion in the workplace and beyond. To deliver on our mission, we are always looking for problem solvers, changemakers and innovators to join our fast-growing team. As required by the Equal Pay Transparency Act, Epirus provides a reasonable range of minimum compensation for roles that may be hired. Actual compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, and specific office location. For the state of California only, the range of starting pay for this role is: $98,700—$119,800 USD

Job Description Company Overview: SOE is an engineering consulting firm that specializes in electrical, electromechanical, and embedded systems. Founded in 2016, we have 30+ engineers across offices in El Segundo, CA and Redmond, WA. In that time, we've completed over 250 projects for more than 100 clients. Our designs control rocket engines, manage satellite communications, instrument fusion reactors, and are enjoyed by consumers around the world. We approach problems from first principles. We break challenges down to their most fundamental components, which is how we find solutions that hold up across industries, use cases, and engineering functions. We focus on solving the right problems and building the teams to take them on. Because we believe that training and empowering others yields a greater impact than focusing on developing any specific technology, we expect every single member of our team to participate in building up those around them. In the past two years, we've generated a new avenue of growth. We've started taking our own internal concepts and incubating separate companies that we believe will meet the emerging needs of our clients and the industry at large. We currently have two of these companies in stealth that our team is actively working on, one in nuclear energy and one in space telecommunications. Information about SOE's mission, vision, and values can be found here. Examples of the projects SOE has worked on can be found here. Job Overview: We are looking for a High Speed Digital Electrical Engineer to work across client programs that demand hardware performing at the edge of what is commercially possible. This is a hands-on design role. You will own high-speed digital PCB design, signal integrity, and FPGA development across a range of programs - from space avionics and optical communication systems to power electronics and embedded computing platforms. No two programs are identical, and you will bring the same first-principles rigor to each one. You will work alongside engineers who have shipped flight hardware and know what it takes to close a design in a real program environment. You will have direct client exposure, ownership over your technical deliverables, and access to programs that rarely show up at larger firms. As SOE grows our incubation model, high-speed digital engineering sits at the center of the most technically demanding programs we take on. This role is a direct line into that work. Key Responsibilities: • High Speed Digital Design, • Support high speed electrical architecture from concept generation through investigation including key trades, requirement definition, investigations and component selection., • Own signal integrity from component selection and schematic capture through layout and post-route simulation: impedance control, differential pair routing, crosstalk analysis, and eye diagram verification., • Work with power electronics engineers to inform and design power delivery networks for high-performance ASICs, FPGAs, and multi-channel memory; close power budgets from system architecture through regulator selection and decoupling strategy, • Develop and execute high-speed board bring-up: BERT testing, TDR characterization, eye mask compliance, and EMC pre-compliance, • Design in Altium; produce layout-ready packages with full design rule documentation for contract manufacturing, • Space Qualification & EMI/EMC, • Incorporate environmental requirements across programs: radiation tolerance, thermal cycling, vibration, shock, and vacuum outgassing where applicable, • Select and qualify components for space-grade or radiation-tolerant operation; manage parts lists and evaluate COTS mitigation strategies, • Select and implement best design practices that minimize the down-stream risk of test failures from EMI/EMC. Familiar with industry standards such as STD-461, DO-160, and MIL-STD-461., • Author and maintain design specifications, interface control documents, and test procedures at the level demanding programs require, • Client & Team Collaboration, • Work directly with clients to translate system requirements into board-level hardware specifications, • Contribute to technical reviews (PDR, CDR) as both a presenter and reviewer across programs, • Support junior engineers through design reviews and hands-on mentorship, • Contribute to SOE's internal body of knowledge: reusable design patterns, documentation standards, and lessons learned Minimum Qualifications: • Bachelor's Degree (Electrical Engineering, Computer Science, Physics, Math, or related field), • 5+ years of applied experience with a demonstrated passion for engineering and technology development, • Experience with high-speed test equipment and debug tools: BERT, VNA, TDR, high-bandwidth oscilloscopes (20 GHz+), and logic analyzers., • Excellent written and verbal technical communication skills; ability to explain technical concepts and their implications to non-technical audiences, • A systems-thinking approach, with the ability to connect engineering execution to business strategy., • A proven track record of leading technical initiatives, mentoring engineers, and driving process improvements., • A bias for action, thriving in a fast-paced consulting environment where priorities can shift quickly., • Willingness to be deeply involved in both high-level strategy and hands-on technical execution. Preferred Qualifications: • 10+ years of relevant experience, • Experience designing electronics for space-qualified or radiation-tolerant applications, including component derating, single-event effects (SEE) analysis, or environmental test campaigns (thermal vacuum, vibration, shock), • Familiarity with 400G/800G Ethernet architectures, PAM4 signaling, or co-packaged optics interfaces, • Experience with power integrity analysis tools and multi-phase VRM design for high-current, fast-transient loads, • Background in optical communication systems or the electrical interface between high-speed digital hardware and analog RF or opto-electronic signal chains, • EMI/EMC test experience to MIL-STD-461 or DO-160, • Experience with business development, sales engineering, or technical sales to support the CEO in client engagements., • Prior work in an engineering consulting or services-based firm, understanding the nuances of client-driven project work., • Understanding of operations, finance, or project management, helping streamline engineering execution at a business level., • A history of patents, publications, or open-source contributions, demonstrating thought leadership in the field. Additional Requirements: • Applicant must be willing to work 40 hours a week on-site in El Segundo, California, USA, • Applicant must be eligible to work on ITAR projects, • Job Type: Full-time (Salary) ITAR Requirements: • To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Unfortunately, we are unable to provide sponsorship at this time. Benefits: • Salary range dependent on leveling, • Senior Engineer: $155,00- $200,000, • Staff Engineer: $195,000 - $235,000, • Principal Engineer: $235,000 - $270,000, • Equity (via ISOs) in Second Order Effects, Inc., • Equity (via PIUs) in our incubated companies (through our holding company, Second Order Holdings, LLC), • 100% employer-paid health insurance (Medical, Dental, Vision) for employees + 50% dependent coverage, • Flexible paid time off policy + 11 paid holidays + 12 paid sick days, • 401(k) retirement account and employer matching (Safe Harbor 4%), • Up to 22 weeks of paid parental leave dedicated to new child bonding, • Relocation assistance available if 50+ miles away from the office, • Electric Vehicle (EV) charging ports, • Daily catered lunches, snacks, and accessible kitchen, • & more! If you don't meet 100% of the preferred skills and experience, we encourage you to still apply! Second Order Effects is proud to be an Equal Opportunity Employer; employment with SOE is governed on the basis of excellence and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

Job DescriptionDescriptionAs a Radiation Effects Engineer, your core responsibility will be to contribute to the componentselection, design, testing, and delivery of flight hardware systems for space missions from low Earth orbit to mars. You’ll work closely with electrical engineers, RF engineers, EMC engineers, mechanical engineers, and test engineers to maximize reliability, perform analysis and testing, and ensure reliable hardware performance across Impulse’s spacecraft. Responsibilities • Lead total ionizing dose (TID) and single event effects (SEE) component characterization and qualification efforts through testing and test data analysis, • Support radiation testing at off-site locations by developing test procedures and optimizing for test time, • Maintain databases of radiation test data across components and interface with supply chain and design engineers to utilize and procure components, • Create design standards for electrical engineers to maximize radiation reliability on-orbit, • Review circuit board designs and BOMs to ensure compliance with design standards, • Interface with program managers and engineering leadership to ensure radiation-related risks are accurately represented, • Perform or contribute to ray-tracing shielding analysis of avionics enclosures, • Occasional domestic travel to support radiation test campaigns Minimum Qualifications • Bachelor’s degree in Electrical Engineering, physics, or related technical field, • 2+ years experience in the radiation effects field, • Strong component selection experience for digital, analog, power, and RF systems, • Experience supporting radiation testing campaigns for proton and/or heavy ion, • Experience analyzing radiation test data to establish effects at the circuit-, board-, and vehicle-level, • Experience integrating industrial and/or automotive-grade parts in radiation environments Preferred Skills and Experience • Experience with single event effects (SEE) risk calculations, • Ability to write scripts to control test hardware, • Proficiency with avionics hardware spanning flight computers, radios, and motor controllers, • Familiarity with Altium, • Understanding of semiconductor manufacturing processes, • Orbital dynamics, space experience, • Strong statistical analysis skills, • Experience in electromagnetic effects, surface charging analysis, or characterizing system desense and coexistence, • Familiarity with industry standards such as EEE-INST-002, NASA 8739.11, NASA-HDBK-4002, NASA-STD-4005, or similar • Experience with orbital and radiation simulation tools such as OMERE, FASTRAD, or similar. Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job DescriptionDescriptionAs a Simulation Engineer, you will be responsible for developing and maintaining high-fidelity simulations of space vehicle dynamics, sensors, actuators, and propulsion systems, with the potential to expand into other subsystems. You will work closely with GNC, software, and test teams to ensure accurate modeling and analysis to support design, verification, and mission planning efforts for Mira, Helios, and more. Responsibilities • Develop physics-based models of vehicle dynamics, reaction systems, propulsion systems, and other subsystems as needed., • Integrate simulation framework into hardware-in-the-loop testbeds., • Collaborate with engineers across disciplines to validate simulation models and behaviors against analysis and test data., • Support system-level analysis, trade studies, and performance assessments., • Contribute to software and tool development to improve simulation workflows., • Provide simulation support for verification and validation of flight software., • Participate in simulation reviews, test readiness reviews, and mission dress rehearsals. Minimum Qualifications • Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, Physics, Math, or a related field., • 7+ years of experience in modeling and simulation of physical systems., • Proficiency in C++ and Python., • Strong understanding of dynamics, thermodynamics, and/or fluid mechanics., • Experience with version control systems such as Git., • Experience with LabView. Preferred Skills and Experience • Master’s degree or higher in a relevant field., • Experience with space vehicle dynamics, propulsion, and/or thermal systems modeling., • Familiarity with multi-disciplinary simulation tools (e.g., Modelica, Simscape, or Amesim)., • Experience with software-in-the-loop (SIL) or hardware-in-the-loop (HIL) testing environments., • Ability to work in a fast-paced, collaborative environment and manage multiple priorities., • Experience in developing with NI-DAQmx APIs. Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job Description Avionics / Electrical Engineer – Build Flight-Critical Hardware for Next-Generation Space Systems! El Segundo, CA | On-site Opportunity Summary We are seeking an Avionics / Electrical Engineer to help design and deliver the electrical backbone of advanced spacecraft systems operating in demanding environments. This role is centered around high-performance hardware development, rapid iteration, and deep technical ownership. You will work closely with a small, highly capable engineering team to architect, build, and validate avionics systems that move quickly from concept to flight. This position is ideal for engineers who enjoy working close to the hardware, solving complex multidisciplinary problems, and operating in environments where execution speed and engineering rigor matter equally. You will play a key role in bringing reliable, flight-ready systems online while helping shape system architecture and engineering best practices as the company scales. About Us We are a venture-backed aerospace startup focused on building advanced spacecraft systems that enable ambitious in-space missions. Our team combines deep technical experience with a startup mindset, emphasizing ownership, fast iteration, and first-principles engineering. Engineers here work across disciplines, move quickly from design to testing, and contribute directly to systems that are built to fly. Job Duties • Own development of avionics and electrical subsystems from early architecture through vehicle integration, • Design, prototype, and validate flight computers, electrical power systems, communications hardware, and core avionics electronics, • Perform system-level electrical trades, requirements capture, and interface definition across vehicle subsystems, • Develop avionics solutions supporting telemetry, communications, sensing, timing, navigation, and safety functions, • Design and bring up PCBs and supporting electronics hardware, • Build and execute ground testing and data acquisition systems to support rapid validation, • Develop and operate hardware-in-the-loop test environments to validate system behavior, • Perform hands-on troubleshooting and debugging at board, harness, and vehicle levels, • Lead root cause and corrective action investigations to improve reliability and performance, • Collaborate closely with software, propulsion, and systems engineers to ensure end-to-end integration, • Support harnessing design, mechanical packaging, and system integration efforts, • Execute rigorous technical reviews including design, test readiness, and flight readiness reviews, • Maintain clear engineering documentation supporting development and qualification efforts, • Ensure designs align with applicable safety and government compliance requirements Qualifications • Bachelor’s degree in Electrical Engineering, Aerospace Engineering, Computer Engineering, Physics, or a related technical discipline, • 2+ years of experience developing electrical or avionics systems for complex hardware platforms, • 1+ years designing electrical or control systems for spacecraft or similarly demanding environments, • Strong hands-on experience with circuit design, electronics prototyping, and lab test equipment, • Experience troubleshooting electronics at both board and system levels, • Experience designing hardware that operates in harsh or high-reliability environments, • Familiarity with PCB design tools such as Altium Designer or comparable platforms, • Strong engineering fundamentals and first-principles problem-solving approach, • Ability to work autonomously and execute quickly in a fast-paced environment, • Clear technical communication skills and strong ownership mindset, • U.S. Person status required due to export control regulations Preferred Experience • Experience delivering avionics or electrical systems that reached deployment or operational use, • Background in high-performance vehicles, aerospace hardware, defense systems, robotics, or autonomous platforms, • RF or communications systems experience, • Familiarity with electrical analysis and simulation tools such as LTSpice, ANSYS HFSS, or similar, • Experience with integration testing, environmental testing, or mission operations, • Knowledge of power electronics, batteries, sensors, or safety-critical hardware design, • Experience working under aggressive schedules with rapid design-build-test cycles Why Join Us • Opportunity for growth and increasing technical ownership, • High-impact role working on real flight hardware, • Fast-paced, execution-focused engineering environment, • High autonomy with minimal bureaucracy, • Close collaboration with experienced technical leadership, • Broad technical exposure across multiple spacecraft subsystems, • Strong PTO policy, • Medical, dental, and vision benefits, • 401(k) plan, • Equity options Compensation Details $140,000 - $220,000 #LI-AV

Job Description Senior Nuclear Engineer Radiant is seeking a driven Senior Nuclear Engineer to join our team! You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge custom-made Digital Twin simulation software. You’ll be responsible for assessing conservatism and verifying assumptions within the modeling methods and documenting all results. Because these methods are pivotal in the safety analysis, you will play a key role in the commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties: Own modeling methods of core neutronics and reactor physics calculations supporting Radiant’s transient safety analyses. Perform calculations of energy deposition distributions, reactivity coefficients, kinetics parameters, and control blade worths to input into Digital Twin models. Verify assumptions and assess conservatism of neutronics models. Document methods for both technical and non-technical audiences. Assist in Verification & Validation (V&V) efforts for the Digital Twin. Review and support other nuclear analyses across the company in reactor physics, shielding, and radiation detection. Required Skills and Qualifications: Bachelor’s degree in nuclear engineering or a similar field from an accredited institution. 4+ years of experience with Monte Carlo nuclear engineering software such as OpenMC, MCNP, Serpent, SCALE, etc. Experience documenting analysis methods and assumptions. Strong programming skills in any language, preferably Python. Desired Skills and Qualifications: Knowledge and experience in reactor kinetics. Basic knowledge of thermal hydraulic principles. Experience communicating and distilling information with cross-functional teams. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $133.5K - $184.8K

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. Thermal Modeling Engineer (CFD) Radiant is seeking a driven Thermal Modeling Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties: Develop and execute thermal analysis and CFD to evaluate design and performance of Kaleidos systems. Document analysis results to communicate clear and actionable outputs. Expand CFD capabilities, accuracy, and efficiencies via methods and workflow development projects. Produce analysis geometry from mechanical design CAD Develop methods and calculations to support and build confidence in lower-fidelity thermal analysis methods. Required Qualifications and Skills: Bachelor’s degree in engineering, physics, or similar field from an accredited institution. Experience with Star CCM+ or Ansys Fluent. Proficiency with CAD software (Siemens NX). Understanding of finite element and computational fluid dynamics modeling principles and methods. Ability to effectively communicate with cross-functional teams. Desired Qualifications and Skills: Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $105K - $125K

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking an Engineering Manager to lead the Electronics team. This team owns the electronics architecture for terrestrial reactor controls, with a long-term path toward space reactor applications. You will be the technical authority for custom hardware—low-noise analog front ends, high-speed data conversion, DSP, and PCB design—from requirements capture through field operation. Responsibilities & Duties: Build and manage a team of electrical engineers to develop and test the next generation of reactor control systems. Own the electronic architecture for terrestrial and, in the future, space reactors. Collaborate with other teams to define requirements for all electronic designs, environmental, noise, accuracy, input range, and reliability. Own acceptance and qual testing of all in-house PCB designs to verify design and build to requirements. Required Qualifications & Skills: Bachelor’s degree in electrical engineering, or a related field. 5+ years managing electrical engineers. 5+ years designing mixed signals, analog, or RF hardware. Proven track record of PCB design. With considerations for low noise, matched impedance signal routing, conduction cooling, robust internal and external connectors. Preferably in Altium. Strong experience with industrial signal types, 4-20mA, RTD, Thermocouples, and Resolvers. Experience with high-speed, sensitive signals. Experience with digital communication interfaces such as SPI, I2C, CAN, Ethernet, and RS422. Experience with EMI/EMC best practices for design and strategies to mitigate exceeding levels. Desired Qualifications & Skills: Master’s degree in electrical engineering, physics, aerospace, mechanical, nuclear engineering, or a related field. Experience with rad hardened circuit design. Experience with control system design for nuclear applications. Experience with nuclear instrumentation and signals. Experience with applying IEEE-603 in electrical designs. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $208,500 - $284,025

Job DescriptionPlease Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State. At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team. CesiumAstro is seeking an RF Systems Architect to lead the definition and development of next-generation ISR (Intelligence, Surveillance, and Reconnaissance) RF payloads, with emphasis on radar systems, RF sensing, and wideband signal collection. This role is highly strategic and technical, focused on end-to-end RF payload architecture—from antenna and front-end design through system-level performance, signal processing considerations, and mission integration. The ideal candidate demonstrates deep experience in phased array systems, wideband RF architectures, and space-based sensing payloads. KEY RESPONSIBILITIES • Define and lead system architecture for advanced ISR RF payloads, including radar and RF sensing systems for space and airborne platforms., • Translate mission objectives into end-to-end RF payload architectures, including antenna systems, RF front-end, digitization, and downstream processing., • Drive architectural trade studies across performance, SWaP, scalability, and mission constraints., • Lead concept development for wideband, multi-beam, and multi-function RF payloads, including electronically steered arrays and digital beamforming systems., • Partner with business development to shape technical strategy, support proposals, and secure new program opportunities., • Serve as a Subject Matter Expert (SME) in RF payload architecture, supporting internal reviews and customer engagements., • Guide cross-functional teams through architecture definition, prototyping, and system validation., • Stay at the forefront of emerging ISR, radar, and RF sensing technologies and incorporate advancements into product roadmaps., • Mentor engineers and establish best practices in RF system architecture and payload development., • Communicate complex technical concepts, architectures, and trade-offs to internal stakeholders and external customers. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Master’s degree in Electrical Engineering, Physics, or a related technical discipline (advanced degree preferred)., • 15+ years of professional experience in RF engineering, radar systems, or RF sensing technologies., • Demonstrated expertise in RF system design fundamentals, including link budgets, noise analysis, and RF propagation., • Strong technical background in phased array antennas, beamforming techniques, and wideband RF systems., • Experience working with RF hardware components such as antennas, LNAs, mixers, ADCs/DACs, and frequency conversion chains., • Proficiency with RF and electromagnetic simulation tools (e.g., MATLAB, ADS, HFSS, CST, or similar)., • Solid understanding of radar principles and/or signal processing techniques relevant to RF sensing applications., • Experience in aerospace, defense, or space-based systems environments., • Demonstrated technical leadership experience or progression into senior/architect-level roles., • Strong analytical and problem-solving skills in complex engineering environments., • Effective written and verbal communication skills for technical collaboration. PREFERRED EXPERIENCE, • Experience contributing to or leading successful program captures and technical strategy., • Demonstrated innovation, including patents or novel RF/antenna system developments., • Experience in fast-paced, startup, or advanced development environments. CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans. CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law. Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a driven Senior Thermal Analyst with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities & Duties: Own and execute thermal CFD analysis to evaluate design and performance of Kaleidos reactor systems. Develop and implement solutions to model turbulent flow, heat transfer, and multi-physics interactions Identify and implement CFD simulation best practices Build automated workflows to expand simulation capabilities, accuracy, and efficiencies Collaborate across teams and disciplines to support design of reduced order analysis methods. Required Qualifications & Skills: Bachelor’s degree in engineering, physics, or similar field from an accredited institution. 5+ years of relevant industry experience. 5+ years experience with STAR-CCM+, Ansys Fluent, or other commercial CFD code. Proficiency with CAD software (Siemens NX). Mastery of finite element and computational fluid dynamics modeling principles and methods. Experience communicating and distilling information with cross-functional teams. Desired Qualifications & Skills: Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $139.5K - $224.7K

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a Reactor Operations Training Specialist to play a critical role in enabling safe, scalable operations for the line of Kaleidos reactors. In this role, you will be responsible for building Reactor Operator training resources to enable timely and effective training and certification of operators. This role goes beyond traditional documentation, requiring close, daily collaboration with operators, engineers, and test teams to rapidly translate emerging system knowledge into clear, actionable content. This role may also support engineering operations through the development of test plans, data reviews, and other key technical documentation needed to move from prototype to commercial deployment. Responsibilities & Duties: Develop and continuously refine Reactor Operator training materials, including operator manuals, learning objectives, lesson plans, operating procedures, and evaluation tools. Direct experience with nuclear systems, reactor operations, or operator training programs. Maintain records of operator qualification to DOE/NRC standards. Translate evolving reactor designs and operational concepts into clear, concise, and easily understood training content. Embed with engineering, test, and operations teams to capture real-time technical insights and lessons learned and reflect them in documentation. Establish and maintain documentation standards, templates, and style guides suited for a fast-paced startup environment. Manage document lifecycles within configuration-controlled systems, including version control, change tracking, and rapid updates. Balance speed and rigor to ensure documentation supports both rapid development and regulatory expectations. Capture operational lessons learned and support development of regulatory documents, to include white papers and topical reports. Required Qualifications & Skills: Bachelor’s degree in Engineering, Physics, Technical Communication, or a related technical discipline. 2+ years of technical writing experience in a complex, engineering-driven environment (e.g., nuclear, aerospace, energy, or advanced hardware). Familiarity with complex systems and the ability to distill them into operator-focused training content through both written and verbal mediums. Ability to deliver instructional material in both group and one-on-one classroom environments. Ability to read and interpret engineering drawings, specifications and procedures. Ability to work with incomplete or evolving technical information and produce clear, accurate documentation. Experience developing training materials, technical references, or test documentation. Strong collaboration skills and comfort working directly with engineers and operators in a dynamic setting. Familiarity with document control and configuration management principles. Desired Qualifications & Skills: Background in instructional design or building technical training programs Familiarity with NRC or DOE regulatory instructions and licensing considerations for commercial reactors. Ability to operate with a high degree of ownership and autonomy in an evolving organizational structure. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $150K - $207.9K

Job DescriptionAbout Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a Reactor Operations Enablement Engineer to play a critical role in enabling safe, scalable operations for the line of Kaleidos reactors. In this role, you will be responsible for building Reactor Operator training resources to enable timely and effective training and certification of operators. This role goes beyond traditional documentation, requiring close, daily collaboration with operators, engineers, and test teams to rapidly translate emerging system knowledge into clear, actionable content. This role may also support engineering operations through the development of test plans, data reviews, and other key technical documentation needed to move from prototype to commercial deployment. Responsibilities & Duties: Develop and continuously refine Reactor Operator training materials, including operator manuals, learning objectives, lesson plans, operating procedures, and evaluation tools. Direct experience with nuclear systems, reactor operations, or operator training programs. Maintain records of operator qualification to DOE/NRC standards. Translate evolving reactor designs and operational concepts into clear, concise, and easily understood training content. Embed with engineering, test, and operations teams to capture real-time technical insights and lessons learned and reflect them in documentation. Establish and maintain documentation standards, templates, and style guides suited for a fast-paced startup environment. Manage document lifecycles within configuration-controlled systems, including version control, change tracking, and rapid updates. Balance speed and rigor to ensure documentation supports both rapid development and regulatory expectations. Capture operational lessons learned and support development of regulatory documents, to include white papers and topical reports. Required Qualifications & Skills: Bachelor’s degree in Engineering, Physics, Technical Communication, or a related technical discipline. 2+ years of technical writing experience in a complex, engineering-driven environment (e.g., nuclear, aerospace, energy, or advanced hardware). Familiarity with complex systems and the ability to distill them into operator-focused training content through both written and verbal mediums. Ability to deliver instructional material in both group and one-on-one classroom environments. Ability to read and interpret engineering drawings, specifications and procedures. Ability to work with incomplete or evolving technical information and produce clear, accurate documentation. Experience developing training materials, technical references, or test documentation. Strong collaboration skills and comfort working directly with engineers and operators in a dynamic setting. Familiarity with document control and configuration management principles. Desired Qualifications & Skills: Background in instructional design or building technical training programs Familiarity with NRC or DOE regulatory instructions and licensing considerations for commercial reactors. Ability to operate with a high degree of ownership and autonomy in an evolving organizational structure. Additional Requirements: Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks Stock: Substantial incentive stock plan for all full-time employees. Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. One Medical: Sponsored memberships for employees and their dependents. Vision: 100% top tier plan coverage + 50% for dependents. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees. Daily catered lunch. Free snacks and drinks. Flexible PTO policy. Remote workday allocation. Company and team-bonding events, happy hours and in-person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant. The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Compensation Range: $150K - $207.9K

Job DescriptionPRINCIPAL SIMULATION ENGINEER Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. By treating manufacturing as a single integrated system, we unlock a new era of innovation where complex hardware is designed, built, and scaled without limits. As a Simulation Engineer at Freeform, you will be responsible for developing physics-based, data-driven models that enable the first production scale, high quality, and fully automated metal 3D printing factory capability. We are looking for someone with deep knowledge in physical simulations and multi-physics phenomena who can develop sophisticated models from scratch for undefined or previously unsolved problem statements. This person needs to be comfortable working in an interdisciplinary environment that iterates quickly and decisively. 3D printing experience is not required to be successful here - rather we look for smart, motivated, collaborative engineers who love solving hard problems and creating amazing technology! Responsibilities: • Develop high-performance numerical solvers for simulating the physics of advanced metal 3D printing systems, • Implement numerical simulation models for real-time or near-real-time performance on HPC or GPU platforms, • Work with software engineers to build and deploy physics-based and data-driven models of the laser powder bed fusion process, • Work with software engineers to integrate low-level solvers into simulation pipelines and interface with hardware systems, • Guide the integration of computational geometry and meshing techniques to support large-scale, physics-driven simulations, • Architect simulation modules for execution on specialized compute hardware including FPGAs and GPUs, • Contribute to the development of model-predictive control strategies alongside control engineers, • Generate and maintain documentation for all algorithms, solvers, and integrated system Basic Qualifications: • Bachelor's degree in applied mathematics, physics, computer science, mechanical engineering, or a related technical field, • 10+ years of professional experience developing custom simulation solvers with a PhD in one of the above fields, • Demonstrated experience writing low-level numerical solvers for physical simulations, • Strong programming skills in C, C++, or CUDA, • Experience developing simulations in a high-performance compute environment (i.e. running on GPUs), • Academic or professional familiarity with solid mechanics, continuum mechanics, or other physical modeling domains Nice to Have: • Experience with real-time or near-real-time simulations on GPU or parallel computing platforms, • Experience with direct numerical simulation (DNS) models, • Familiarity with solid mechanics, continuum mechanics, or other physical modeling domains, • Experience with thermo-elastic or thermo-elastoplastic modeling, • Familiarity with computational geometry and meshing techniques, • Experience with data-driven modeling techniques and hybrid physics/data simulation methods, • Familiarity with optimization techniques and control theory, • Experience with 2D and 3D meshing libraries and tools, • Creative problem solver with a strong foundation in first-principles thinking and numerical analysis, • Strong written and verbal communication skills Location: Based in Hawthorne, our vertically integrated facility brings technology development, R&D, and production together under one roof. We operate at the center of LA's deep tech ecosystem, surrounded by some of the most ambitious hardware innovation happening anywhere in the country. Our fast-paced, cross-functional environment is built on close collaboration, and as such, this role requires full-time onsite presence (five days a week), with very limited exceptions. What We Offer: • We have an inclusive and diverse culture that values collaboration, learning, and making deliberate data-driven decisions., • We offer a unique opportunity to be an early and integral member of a rapidly growing company that is scaling a world-changing technology., • Benefits, • Significant stock option packages, • 100% employer-paid Medical, Dental, and Vision insurance (premium PPO and HMO options), • Life insurance, • Traditional and Roth 401(k), • Relocation assistance provided, • Paid vacation, sick leave, and company holidays, • Generous Paid Parental Leave and extended transition back to work for the birthing parent, • Free daily catered lunch and dinner, and fully stocked kitchenette, • Casual dress, flexible work hours, and regular catered team building events, • Compensation, • As a growing company, the salary range is intentionally wide as we determine the most appropriate package for each individual taking into consideration years of experience, educational background, and unique skills and abilities as demonstrated throughout the interview process. Our intent is to offer a salary that is commensurate for the company's current stage of development and allows the employee to grow and develop within a role., • In addition to the significant stock option package, the estimated salary range for this role is $225,000-$300,000. However is this a unique position with outsized impact for the right game-changing hire, so we will consider compensation outside of this range on a case-by-case basis., • Freeform is an Equal Opportunity Employer that values diversity; employment with Freeform is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job Description Hadrian - Manufacturing the Future Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships up to 10x faster and up to 2x cheaper. By combining advanced software, robotics, and full-stack manufacturing, we are reinventing how America produces its most critical parts. We’re accelerating our mission with the launch of Factory 3 in Mesa, Arizona, a 290,000-square-foot facility creating 350 new jobs. We are expanding rapidly to support thousands of future hires, launching Hadrian Maritime to expand into naval production, and introducing a Factory-as-a-Service model that delivers complete systems instead of individual parts. Hadrian is backed by leading investors including T. Rowe Price, Lux Capital, Founders Fund, and Andreessen Horowitz, our fast-growing team is united around reindustrializing American manufacturing for the 21st century and beyond. The Role We are hiring an Automation Engineer, NDT to design and deploy automation for advanced NDT inspection cells across UT, VT, RT, and CT. This is an end-to-end automation role for someone who has direct experience building inspection capability in the real world. You will own robot / motion paths, sensor integration, acquisition timing, station sequencing, operator UX, data traceability, safety, and production commissioning. You will partner with certified NDT personnel and Quality on method validation, acceptance criteria, and audit evidence. This is not an NDT technician role and not a generic controls role. We are looking for someone who has personally designed, deployed, or commissioned automated inspection / NDT systems and knows what breaks when those systems hit production. What You'll Do Design and deploy automated inspection cells for advanced NDT methods including ultrasonic testing (UT), visual testing / visual inspection (VT), radiographic testing (RT), and computed tomography (CT). Own the cell automation stack: robot / motion path, sensor integration, deterministic triggering, acquisition PC, sequencer, HMI / operator UX, data logging, and production handoff. Plan scan / inspection paths that balance coverage, probability of detection, cycle time, kinematics, collision risk, and operator workflow. Integrate modality-specific hardware: phased-array UT probes, cameras / lighting / optics, digital radiography sources and detectors, CT turntables / reconstruction flows, and related acquisition systems. Partner with certified NDT personnel and Quality to validate methods against applicable standards and customer requirements. Build structured inspection data pipelines for SPC, traceability, customer handoff, and archival. Own station safety with EHS: radiation for RT / CT, laser / lighting for VT, couplant / water / ergonomics for UT, collision and LOTO for all modalities. Commission on the floor, debug drift / escapes / false calls / timing issues, and hold the line when inspection blocks production. Qualify vendors and integrators; write acceptance tests, red-line designs, and keep suppliers honest. Codify reusable inspection automation patterns so the next station inherits a platform instead of a one-off science project. What We're Looking For 3+ years designing, deploying, or commissioning automated inspection / NDT systems in production or high-reliability environments. Direct ownership of at least one automated inspection station involving robot / motion, sensor acquisition, station sequencing, data logging, and acceptance / production handoff. Deep practical experience in at least one advanced NDT modality: UT: phased-array, TFM / FMC, encoded scanning, robotic scan paths, couplant handling. VT: 2D / 3D / multispectral vision, lighting, optics, calibration, dimensional / cosmetic inspection, gauge R&R. RT: digital radiography, source / detector integration, shielding, interlocks, radiation safety. CT: turntable / positioning, reconstruction pipeline, volumetric analysis, large-data workflow. Measurement rigor: MSA / gauge R&R, POD / ROC where applicable, uncertainty, acceptance criteria, and audit-ready evidence. Working knowledge of robot / motion systems and industrial controls such as Fanuc, ABB, Kuka, Yaskawa, Beckhoff TwinCAT, or Siemens TIA. Comfort debugging across mechanical, controls, acquisition, software, data, Quality, and operator workflows. Bachelor's degree in EE, ME, Mechatronics, Robotics, Physics, Materials, or related STEM, or equivalent direct experience. ITAR eligible. What Will Set You Apart Radiation safety officer / state radiation safety training for RT / CT. GD&T, CMM, metrology, or dimensional inspection background. Python or C# for acquisition glue, vendor SDK wrappers, data processing, or inspection automation tooling. Experience with inspecting to industry standards such as NAS 410, SNT-TC-1A, ASTM, AWS D1.x, MIL-STD, NAVSEA, or customer-specific aerospace / defense inspection requirements. Experience designing and deploying automation into production. Offline robot programming and simulation experience with RoboDK, Process Simulate, Visual Components, or native robot tools. Production experience in aerospace, defense, medical, power generation, nuclear, or shipbuilding environments where customers audit inspection methods. Experience turning one-off inspection stations into reusable platforms: calibration workflows, scan-path templates, fixture standards, data schemas, and acceptance tests. Compensation $145,000 - $230,000 (actual range may vary based on experience) This range reflects what we reasonably expect to pay at the time of posting. Compensation depends on education, experience, skills, location, performance, and business needs. Benefits for Full-time Employees Medical, dental, vision, and life insurance plans for employees 401k Relocation support may be provided for certain situations, based on business need. Flexible vacation policy Equity ITAR Requirements To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. Hadrian Is An Equal Opportunity Employer It is the Company’s policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.

Job DescriptionDescriptionAs a Senior Data Engineer at Impulse Space, you will guide us in designing, implementing, and optimizing our new data warehouse environment. This is a foundational role where you will be instrumental in evaluating and selecting the right tools, establishing data processes, and enabling our team to leverage data effectively. You will be a key player in transforming our current reporting capabilities into a robust, scalable data platform. Responsibilities • Platform Strategy & Tool Evaluation: Lead the assessment of existing data capabilities and potential new tools, focusing on modern data stack solutions., • Implementation & Architecture: Design and oversee the end-to-end implementation of the data warehouse architecture, including data ingestion (ETL/ELT), storage, modeling, and reporting layers., • Process Development:Establish best practices for data governance, quality, security, and documentation to ensure a sustainable environment., • Data Integration: Implement pipelines to integrate data from various sources into the data warehouse using tools like Airbyte, ensuring data accuracy and consistency., • Compliance & Security: Ensure all architectural designs and data flows adhere strictly to GovCloud and/or FedRAMP requirements., • BI Optimization: Enhance existing Business Intelligence (BI) capabilities by improving the utilization of Power BI for advanced reporting, moving beyond basic use., • Training & Enablement: Develop training programs and documentation for "power users" and staff to foster a data-driven culture and enable self-service analytics. Minimum Qualifications • Bachelor’s degree in computer science, physics, mathematics, statistics, or a STEM discipline., • 5+ years of professional experience building solutions with SQL., • Demonstrated experience leveraging Business Intelligence tools (Power BI and/or Tableau). Preferred Skills and Experience • Strong expertise with data warehousing platforms and database management., • Hands-on experience with ETL/ELT tools such as Airbyte, • Experience with Retool or cloud platforms (AWS, Azure, GCP)., • Exceptional communication skills with the ability to translate complex technical concepts for non-technical audiences., • Strong project management skills, including the ability to oversee implementation plans and timelines. Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job DescriptionSalary: $90,000 - $125,000 Job Summary The System Engineer is responsible for conducting architectural assessments, breakdown of the system into components, the component interactions and interfaces, and the technologies and resources to be used in the design. Leads the system design, development, testing, and implementation of all aspects of the RF Satellite Communications System development lifecycle, under the leadership of the given Program Manager. Outlines integrated solutions that meet performance, usability, reliability, and security needs. Develop technical documentation on applications and systems. Facilitates and leads in the evaluation and selection of commercial-off-the-shelf product evaluations. Additional responsibilities include analyzing engineered products to meet customer use-cases and assure compatibility of all physical, functional, and program interfaces to meet system requirements. Essential Job Duties and Responsibilities • Works as part of an Integrated Product Team (IPT) as Systems Engineer under the direction of the Director of Systems Engineering and with the given Program Manager., • Support the development of subsystem and system requirements by leading requirements IPT and working group meetings with the customer and subcontractors., • Identify and perform hands-on evaluation of system components, such as antennas, LNBs, amplifiers, HPAs, up-converters, down-converters, multiplexers, reference oscillators, PLLs, etc., • Review, develop, and document system-level operational concepts., • Provides effective and efficient system engineering support during the conceptual design, detailed design, integration, and test phases of a product development program and production delivery, supporting on-time completion of assigned tasks., • Performs requirement flow-down and traceability and evaluates the verification test results to satisfy requirements., • Drives continuous improvement initiatives in the areas of analysis, monitoring and performance management., • Sets systems and test requirements of new products and makes decisions relative to system architecture, components selection, and customer use-cases., • Works to support multiple programs/products simultaneously., • Prepares and presents design and analysis summary material during internal and external design reviews., • Documents system designs using ThinKom records retention procedures., • Follows Company design procedures and corporate policies., • Other duties as assigned. Skills and/or Experience Needed • BS, MS, or PhD in Physics, Engineering, or related technical field., • Technically proficient System Engineer with strong architecture skills, subject matter expertise in RF Communications Systems, and solid knowledge of all major components of RF Systems., • Minimum of 2 years of experience in systems engineering, with a track record of successfully architecting, developing, and validating complex RF Communications Systems., • Hands-on expertise with Vector Network Analyzers, oscilloscopes, spectrum analyzers, and other RF measurement equipment., • Technically proficient in MS Office products. Language Skills • Interpersonal skills to effectively work with ThinKom people internally as well as working effectively with suppliers and customers., • Ability to effectively present information in team meetings and design reviews, as needed. Other Abilities • Ability to communicate clearly in a well thought out manner, verbal and written., • Must have substantial problem-solving abilities. Additional Requirements • Must be eligible to obtain and hold a US DoD Security Clearance in support of US Government contracts/subcontracts. Physical Demands • Ability to travel up to 10% of the time., • This position uses a computer terminal to access, input, and retrieve data., • This position may be subject to interruptions that may cause a change in immediate priorities and/or work focus., • While performing duties to this position, employee is occasionally required to stand, walk, sit, stoop, reach, and/or bend., • May occasionally lift and/or move files or boxes up to 50 pounds., • May be subjected to occasional irregular or extended work hours., • May be required to sit for extended lengths of time., • Must be able to work in an environment that may be subjected to occasional loud noises, hazardous materials and chemicals. ThinKom offer generous benefits including: Medical, Dental, Vision, Disability, Life, 401k Matching (4%), PTO, paid Holidays and Bonus Plan. ThinKom offer generous benefits including: Medical, Dental, Vision, Disability, Life, 401k Matching (4%), PTO, paid Holidays and Bonus Plan. ThinKom Solutions is an Equal Employment Opportunity Employer. ThinKom Solutions is a Drug and Alcohol-free working environment with a zero-tolerance policy

Job DescriptionStart Date: Immediate JHNA, CTSi, and EXPANSIA have come together to form a Defense Technology platform named Aether Aerospace focused on delivering high-impact technologies, technology-enabled services and advanced manufacturing solutions to the U.S. Department of Defense and related national security customers. Backed by Falfurrias Management Partners, the platform brings together deep domain expertise across Army, Navy, and Air Force and Space Force programs, digital engineering, systems integration, and specialized manufacturing capabilities. The combined organization operates as a multi-entity aerospace and defense technology and tech-enabled services and manufacturing enterprise positioned for scalable growth, operational excellence, and long-term value creation. OVERVIEW Full-time/Permanent Employee Location: El Segundo, CA Our client is seeking a Senior Systems Engineer with relevant system architecture development experience to join our team. You’ll be working across space, ground, and user segment organizations to coordinate and identify system requirements and key performance parameters to ensure end-to-end mission performance requirements are met. This individual will integrally work with the Space Force Space System Commands Military Communication and Positioning Navigation and Timing (PNT) (MilComm & PNT) portfolio to make sure next-gen GPS capabilities stay resilient against modern threats. The proposed salary range for this position is $150,000 - $200,000. There are a host of factors that can influence final salary including, but not limited to, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, geographic location, education, and certifications. RESPONSIBILITIES Provide technical expertise and systems integration support to ensure an optimal integrated GPS System design Contribute to the overarching approach and processes for integrating, synchronizing, tracking and analyzing dependencies across programmatic and organizational boundaries Develop engineering and data models and populate them with up-to-date information to enable automated integration analyses Provide technical support for test activities that characterize system performance Perform and present data analysis that drive decisions on government programs Support GPS Enterprise Risk & Opportunities management KEY QUALIFICATIONS Clearance: Active Secret Clearance Education and Years of Experience: Bachelor’s degree in engineering, mathematics, physics or equivalent technical discipline and nine (9) years of systems integration and systems engineering related or equivalent experience Experience working across space, ground, and user segment organizations to coordinate and identify system requirements and key performance parameters to ensure end-to-end mission performance requirements are met Experience with system architecture development Strong interpersonal skills to enable working, interfacing, and interrelating with diverse personnel and dynamic teams Must be able to work well in multi-team setting, and willing to take on additional technical and administrative tasks/duties as needed Space vehicle as well as other GPS related experience PREFFERED ADDITIONAL QUALIFICATIONS Active Top Secret/SCI Security Clearance Space vehicle communication as well as other GPS related experience Experience and familiarity working with DoD acquisition organizations Experience and familiarity working with DoD acquisition organizations on an ACAT I / II program Experience working specifically on a SE&I contract Military experience

Job Description Rainmaker is pioneering a modern cloud seeding system to solve water scarcity and inclement weather problems. We develop and incorporate radar validation, weather-resistant UAS, numerical weather modeling, and sustainable cloud seeds into an effective precipitation enhancement solution. The Engineering team at Rainmaker works on our UAS, dispersion payload, and in-situ/remote sensing systems. If you are interested in working in an extremely innovative and fast-paced environment, where your work directly makes an impact and difference in our operational system, this is a fantastic opportunity. About the Role We are seeking a highly hands-on Mechanical/Aerospace Research Engineer with deep expertise in aerosol science, multiphase flow, and compressible fluid dynamics. In this role, you will bridge the gap between cloud physics and high-performance fluid systems, designing hardware that utilizes high-velocity gas dynamics to both fragment nanoparticle agglomerates and atomize liquid precursors into submicron aerosols. You will tackle complex mechanical challenges to efficiently disperse cohesive dry powders and ultra-fine droplets, managing complex mass-transfer and particle/droplet momentum while strictly adhering to aerospace SWaP (Size, Weight, and Power) constraints. Key Responsibilities High-Velocity Nozzle Design: Design, machine, and test custom Convergent-Divergent (Laval) nozzles to achieve controlled gas expansion for both liquid filament breakup and high-shear solid deagglomeration. Multiphase Dispersion: Develop and optimize systems for the simultaneous or alternating dispersion of complex liquid aerosols and dry-powder "seeds" using high-velocity gas streams. Hardware Prototyping: Build mechanical dry-powder micro-feeders, liquid delivery architectures, and aerosol generators from the ground up, utilizing high-pressure gas supply systems. Fluid/Mechanical Architecture: Develop the pneumatic and fluidic routing systems (valves, regulators, and micro-channels) required to maintain specific pressure ratios necessary for choked flow and stable supersonic jets. UAS Integration: Adapt benchtop aerosol generation concepts into lightweight, battery-efficient payloads capable of surviving flight vibrations and high aerodynamic shear. Rapid Iteration: Work collaboratively to evaluate hardware performance and rapidly iterate nozzle geometries based on empirical droplet-size and particle-size data. Required Qualifications BS, MS, or PhD in Mechanical Engineering, Chemical Engineering, or a closely related technical field. Approximately 5 years of hands-on experience in mechanical engineering, specifically focused on fluid dynamics, multiphase flow (gas-liquid/gas-solid), or atomization. Proven experience in Mach number optimization, internal nozzle flow, and the physics of choked flow conditions. Proven experience physically building and troubleshooting fluidic or pneumatic hardware (e.g., high-velocity gas jets, Laval nozzles, precision sprayers, or powder dispersers). Understanding of droplet dynamics and breakup regimes (e.g., Weber number effects) and techniques for nanoparticle deagglomeration. Strong CAD proficiency (SolidWorks, Fusion 360, etc.) and hands-on hardware prototyping experience, including CNC machining and general fabrication. Preferred / Bonus Qualifications High-Speed Flow Characterization: Experience with the analysis of high-velocity particulate exhaust, liquid-jet disintegration, or supersonic multiphase flows. Advanced Particle & Droplet Dispersion: Familiarity with kinetic aerosolization techniques where liquid or solid phases are accelerated to high velocities for fragmentation or dispersion. Computational Modeling: Experience with CFD (e.g., ANSYS Fluent, COMSOL) to model droplet/particle trajectories, velocity lag, and shock-wave interactions in high-speed plumes. Aerosol Instrumentation: Familiarity with standard analytical tools such as Malvern Spraytec, SMPS, or optical particle counters for characterizing both sub-micron liquid and solid aerosols. Basic proficiency in electronics prototyping (Arduino, Raspberry Pi) and software/scripting (Python) for hardware control and data acquisition. Rainmaker is an Equal Opportunity Employer; employment with Rainmaker is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status. Rainmaker participates in E-Verify. To learn more, including your rights and responsibilities, please visit E-Verify.gov.

Job Description Hadrian - Manufacturing the Future Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships up to 10x faster and up to 2x cheaper. By combining advanced software, robotics, and full-stack manufacturing, we are reinventing how America produces its most critical parts. We’re accelerating our mission with the launch of Factory 3 in Mesa, Arizona, a 290,000-square-foot facility creating 350 new jobs. We are expanding rapidly to support thousands of future hires, launching Hadrian Maritime to expand into naval production, and introducing a Factory-as-a-Service model that delivers complete systems instead of individual parts. Hadrian is backed by leading investors including T. Rowe Price, Lux Capital, Founders Fund, and Andreessen Horowitz, our fast-growing team is united around reindustrializing American manufacturing for the 21st century and beyond. The factories-as-a-service team analyzes our current customers' production and supply chain challenges, builds data-driven presentations, designs and scopes factories of the future, and assists the Federal and Strategic sales team in forming long-term partnerships with the DOD, Primes, and other manufacturers. This team is responsible for scoping, design, cost, schedule, and technology analysis, as well as proposals for major programs and manufacturing transformations across all manufacturing methods and domains. With several major programs in flight, we are hiring rapidly for this team that will effectively analyze, design, scope, plan, and handover (or join) execution of large-scale manufacturing efforts. The Role: Design structural and mechanical forge tooling for ferrous and non-ferrous aerospace components and assemblies for the complete suite of forging processes, focusing on mechanical, hydraulic, screw, and horizontal hot forming presses. Collaborate with engineers and vendors to source/build, and deploy forge tooling systems. Interface with technicians to validate, install, and optimize forge tooling usage Conduct FEA, flow simulations, and die stress analyses to validate designs Document technical specifications, usage guides, and safety procedures Drive testing, validation, and iteration of forge tooling solutions Lead efforts to commission custom production forge tooling and machinery Support automated forge tooling integration in collaboration with controls engineers, for the exchange of perishable tooling and changeover. Use hand calculations and analytical techniques to guide design Ensure all systems comply with OSHA and critical lifting requirements What We’re Looking For: Bachelor’s degree in Engineering, Aerospace, Physics, or a related STEM field. 5+ years in a forging production system environment with emphasis on rate production optimization, tool life improvement, and defect prevention. Strong understanding of the various forge manufacturing processes and first principles of bulk deformation for ferrous and non-ferrous products, and how forge tooling supports quality and production efficiency. Experience in designing forge tooling systems for complex and high production parts and their integration with larger assemblies and downstream operations, such as machining or welding. Ability to contribute to both prototyping and continuous improvement efforts. Demonstrated ability to perform FEA and die stress analysis to validate forge tooling under real-world conditions with proficiency in 3D modeling and simulation tools (e.g., SolidWorks, CATIA, NX, ANSYS, DEFORM, Forge, Q-Form, or related software). Knowledge of tool steel selection, fabrication, heat treatment, and assembly techniques suitable for high-load and high-temperature environments. Knowledge of material behavior for hot bulk forming processes, such as upsetting and extrusion of ferrous and non-ferrous metals. What Will Set You Apart: Experience working with cross-functional teams including design, quality, and automation. 5+ years in a high production forging environment with emphasis on rate production optimization, tool life improvement, and defect prevention. Industry experience with critical operations such as designing for assembly, OSHA requirements, and essential considerations of lifting, rotating, and handling of hot tooling assemblies. Industry experience with tool steels for hot working, heat treatment, and coatings, as well as tool performance under high heats and loads with an understanding of thermal cycling and efficiency of changeover. Industry experience working and interacting within a multidisciplinary team, including engineers, technicians, suppliers/vendors, and facility personnel. Benefits for Full-time Employees Medical, dental, vision, and life insurance plans for employees 401k Relocation support may be provided for certain situations, based on business need. Flexible vacation policy Equity ITAR Requirements To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. Hadrian Is An Equal Opportunity Employer It is the Company’s policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.

Job DescriptionDescriptionAs a Senior Electro-Optical Engineer at Impulse, you will own the development of flight camera systems and optical payloads from early architecture through test and flight. This role is for someone who wants to do more than contribute analysis in a narrow lane, you will be responsible for the technical execution of a spacecraft electro-optical product and will help define how it is built, tested, andintegrated. You will work across optics, camera hardware, embedded software, opto-mechanics, avionics, test, and spacecraft integration to deliver high-performance flight systems on aggressive timelines. This is a high-autonomy role with significant room for growth. The right person will be comfortable acting as the technical owner of the product, driving decisions, coordinating cross-functional execution, and closing hardware quickly. Responsibilities • Own the technical development of flight camera systems and optical payloads from concept through flight., • Define requirements, drive architecture trades, and make key decisions across optics, detector selection, embedded camera interfaces, opto-mechanics, thermal design, and calibration strategy., • Partner closely with embedded software, avionics, mechanical, thermal, manufacturing, and test teams to bring up, validate, and mature hardware., • Lead subsystem integration, test planning, issue resolution, and performance closure for electro-optical flight hardware., • Drive execution with a high degree of autonomy, including risk retirement, prioritization, vendor coordination, and communication of technical status to leadership. Minimum Qualifications • Bachelor’s degree in Optical Engineering, Electrical Engineering, Physics, Aerospace Engineering, Mechanical Engineering, or a related field., • 6+ years of experience developing complex hardware systems in at least one relevant domain: camera systems, embedded imaging systems, electro-optical payloads, opto-mechanics, or optical systems., • Demonstrated experience owning a subsystem, product, or major technical workstream through development and test., • Strong cross-functional engineering judgment and the ability to translate mission needs into practical hardware decisions., • Hands-on experience debugging and maturing real hardware in a lab, integration, or production environment., • Strong written and verbal communication skills. Preferred Skills and Experience • Experience developing flight cameras, imaging payloads, optical navigation systems, electro-optical spacecraft hardware, or other precision imaging systems., • Strong core competency in one or more of the following: camera embedded software, electro-optical hardware, opto-mechanics, or optical system design., • Experience with CMOS image sensors, camera electronics, detector bring-up, image pipelines, or embedded camera software., • Experience with optical design and analysis tools such as Zemax OpticStudio, Code V, or similar., • Experience with calibration, image quality characterization, and environmental test of precision imaging systems., • Space hardware experience, including qualification, acceptance, launch survivability, and spacecraft integration, is strongly preferred., • Prior experience operating as a responsible engineer, technical lead, principal investigator, or product-facing engineering owner is a plus. Why this role at Impulse This is an opportunity to take real ownership of hardware that flies. You will have the autonomy to shape architecture, drive execution, and influence product direction while working on spacecraft payloads in a fast-moving environment. As the team grows, this role offers meaningful opportunities to expand in scope and technical leadership. Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Job DescriptionDescription As a Senior RF Test Engineer at Impulse Space, you will own RF test strategy, automation infrastructure, and system-level validation for wireless spacecraft and ground communication systems. You will work closely with RF, embedded, software, mechanical, and manufacturing teams to define test requirements, develop scalable validation infrastructure, and drive reliability across a wide range of RF hardware. This role is focused on RF test architecture, automation, production validation, and characterization of wireless communication systems including GNSS receivers, radios, antennas, and modulated communication waveforms. Responsibilities • Define RF test requirements and acceptance criteria for engineering, integration, and production environments, • Lead the design and development of RF test fixtures and automated test systems, • Develop scalable Python-based automation tools for RF testing, instrumentation control, and data analysis, • Characterize and debug modulated RF waveforms and wireless communication links, • Operate and integrate RF lab equipment including spectrum analyzers, network analyzers, signal generators, oscilloscopes, power meters, and software defined radios, • Lead RF hardware bring-up, troubleshooting, and system-level validation efforts, • Conduct RF system-level testing including coexistence (CoEx), desense, beamforming, and over-the-air (OTA) testing, • Test and validate RF hardware including GNSS receivers, radios, antennas, filters, amplifiers, and other RF components Minimum Qualifications • Bachelor’s degree in Electrical Engineering, Computer Engineering, Physics, or related technical field, • 5+ years of experience writing Python for RF test systems, automation infrastructure, or wireless hardware validation environments, • Experience working with RF lab equipment including spectrum analyzers, network analyzers, signal generators, oscilloscopes, GNSS simulators, and SDR platforms, • Experience with RF system measurements such as channel power, EVM, modulation quality, Es/N0, C/N0, bandwidth, and receiver sensitivity, • Experience developing and documenting RF test procedures for engineering or production environments, • Strong troubleshooting and debugging skills across RF hardware and software systems, • Comfortable working hands-on in lab and integration environments Preferred Skills and Experience • Experience developing scalable production or manufacturing RF test systems, • Experience with SDR platforms, GNU Radio, or custom waveform development, • Experience with beamforming, phased arrays, or multi-antenna RF systems, • Familiarity with embedded Linux, • Experience with RF environmental, vacuum, thermal, vibration, or OTA testing, • Experience leading cross-functional integration and validation efforts, • Experience working in a fast-paced hardware development environment Additional Information: Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan. Impulse Space’s spacecraft manufacturing business is subject to U.S. export regulations including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). This position requires applicants to be either U.S. Persons (i.e., U.S. citizen, U.S. national, lawful permanent U.S. resident (green card holder), an individual granted asylum in the U.S., or an individual admitted in U.S. refugee status) or persons eligible to obtain an export license from the U.S. Departments of State, Commerce, or other applicable U.S. government agencies. Learn more about the ITAR here. Impulse Space is an Equal Opportunity Employer; employment with Impulse Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.