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The successful applicant will be performing work in FedRAMP High or IL-5 environments, and therefore, must be a U.S. Person (i.e. U.S. citizen, U.S. national, lawful permanent resident, asylees, or refugee). This position may also perform work that the U.S. government has specified can only be performed by a U.S. citizen on U.S. soil. What You'll Do As a team member of Cisco's Advanced Security Initiatives Group (ASIG), you will evaluate our global products and services to identify security vulnerabilities, weaknesses, and improvements. You will learn to adopt an attacker mentality using tools, techniques, and processes that emulate real-world adversaries. You will work with amazingly creative, innovative, and collaborative security researchers to develop evolving ethical hacking skills and networking product knowledge. You will partner with Cisco's industry-leading engineering teams to assess the latest system and application architectures, contribute to creative security solutions, and gain unparalleled access to and experience with the latest technologies. You will also have opportunities to research security topics independently or collaboratively to explore and develop tools and ideas as part of our "Free Friday" innovation and incubation process. Who You'll Work With Our security team is dynamic, hardworking, fun, and high-energy, but the work is done in a very casual environment that strongly encourages a work/life balance. Not only will you work alongside a team of skilled security researchers with a diverse spectrum of talents and experience levels, but you will also be interacting with a variety of engineering teams across Cisco. Cisco ASIG cultivates an environment where every individual's input and experience is valued. We prioritize training sessions and a mentor program surrounding you with the resources you will need to succeed. Who You Are Would you enjoy finding security flaws in critical systems, modeling prototype attacks that malicious actors might take advantage of, and crafting mitigations to thwart motivated and inventive adversaries? If you have a passion for computer security, enjoy solving exciting problems, and relish working with emerging technologies, Cisco wants you! Global ISPs, Fortune 500 companies, and world governments all depend on Cisco for critical infrastructure, and we want to guarantee that we keep delivering highly secured solutions to meet their needs. Minimum Requirements: • 6+ years of red teaming or penetration testing experience with emphasis on remote access, network penetration, Command and Control development and use, and covert channels., • 4+ years of exploit development (Offensive Programming) and cloud security., • Bachelor's degree or equivalent experience in Computer Science, Engineering. MS/MBA preferred., • 6+ years of Unix experience, including any applicable academic experience., • 6+ years of technical leadership experience in security assessments, • Solid understanding of Python, Go, or a similar language. Must be able to code live. Preferred Requirements:, • 4+ years of experience with applied crypto, through implementation or analysis of crypto algorithms., • 4+ years of experience with network protocols, through implementation or analysis., • 4+ years of experience as a DevOps engineer., • 4+ years of security testing experience, including areas like web applications, APIs, user interfaces, mobile devices, and embedded devices., • 4+ years of other full-spectrum red-team tactics, such as hw hacking, physical security breach, targeted social engineering., • 4+ years of experience in a SOC, SRE, or incident response role. Why Cisco? #WeAreCisco. We are all unique, but collectively we bring our talents to work as a team, to develop innovative technology and power a more inclusive, digital future for everyone. How do we do it? Well, for starters - with people like you! Nearly every internet connection around the world touches Cisco. We're the Internet's optimists. Our technology makes sure the data traveling at light speed across connections does so securely, yet it's not what we make but what we make happen which marks us out. We're helping those who work in the health service to connect with patients and each other; schools, colleges, and universities to teach in even the most challenging of times. We're helping businesses of all shapes and sizes to connect with their employees and customers in new ways, providing people with access to the digital skills they need and connecting the most remote parts of the world - whether through 5G, or otherwise. We tackle whatever challenges come our way. We have each other's backs, we recognize our accomplishments, and we grow together. We celebrate and support one another - from big and small things in life to big career moments. And giving back is in our DNA (we get 10 days off each year to do just that). We know that powering an inclusive future starts with us. Because without diversity and a dedication to equality, there is no moving forward. Our 30 Inclusive Communities, that bring people together around commonalities or passions, are leading the way. Together we're committed to learning, listening, caring for our communities, whilst supporting the most vulnerable with a collective effort to make this world a better place either with technology, or through our actions. So, you have colorful hair? Don't care. Tattoos? Show off your ink. Like polka dots? That's cool. Pop culture geek? Many of us are. Passion for technology and world changing? Be you, with us! #WeAreCisco #STO24 #LI-AS3 Message to applicants applying to work in the U.S. and/or Canada: When available, the salary range posted for this position reflects the projected hiring range for new hire, full-time salaries in U.S. and/or Canada locations, not including equity or benefits. For non-sales roles the hiring ranges reflect base salary only; employees are also eligible to receive annual bonuses. Hiring ranges for sales positions include base and incentive compensation target. Individual pay is determined by the candidate's hiring location and additional factors, including but not limited to skillset, experience, and relevant education, certifications, or training. Applicants may not be eligible for the full salary range based on their U.S. or Canada hiring location. The recruiter can share more details about compensation for the role in your location during the hiring process. U.S. employees have ___ to quality medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, short and long-term disability coverage, basic life insurance and numerous wellbeing offerings. Employees receive up to twelve paid holidays per calendar year, which includes one floating holiday, plus a day off for their birthday. Employees accrue up to 20 days of Paid Time Off (PTO) each year and have access to paid time away to deal with critical or emergency issues without tapping into their PTO. We offer additional paid time to volunteer and give back to the community. Employees are also able to purchase company stock through our Employee Stock Purchase Program. Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components. For quota-based incentive pay, Cisco pays at the standard rate of 1% of incentive target for each 1% revenue attainment against the quota up to 100%. Once performance exceeds 100% quota attainment, incentive rates may increase up to five times the standard rate with no cap on incentive compensation. For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid.

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. We are seeking a Senior Power Electronics Engineer I (2025121) to join our growing spacecraft payload development team. In this position, you will contribute across the entire development lifecycle of next-generation power electronics hardware for satellites and space power systems payloads—from working to define power system architectures and trade studies to detailed circuit design, simulation, printed circuit board (PCB) layout, verification and integration testing, production transition, and manufacturing support. DUTIES AND RESPONSIBILITIES * Define electrical power system architecture, and derive power subsystem requirements * Design DC-DC power converters, power management and control circuits from concept to production release * Perform detailed design for low to high complexity analog and power electronics circuits ranging from single DC-DC power converters to multi-output power supply modules * Perform modeling and analysis of analog and power electronics designs including worst-case circuit analysis (WCA), stress analysis, small signal modeling analysis, failure modes and effects analysis (FMEA), reliability analysis, and power integrity analysis * Develop design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans for power converters and power supply designs * Perform board bring-up and design verification testing of analog and power electronics circuits * Perform system integration, qualification testing, and production release of power supply modules and power systems * Perform research and monitor power electronics industry trends to drive innovation and generate intellectual property in this area REQUIREMENTS AND MINIMUM QUALIFICATIONS * Bachelor of Science (BS) degree or higher in Electrical Engineering (or related) from an accredited university * Minimum of 4 years of experience designing analog and power electronics * Experience with power stage design of common DC-DC power converter topologies (e.g. discrete linear regulators, Buck, Boost, Buck-boost, Flyback) * Experience with voltage mode control and peak current mode control modeling and characterization for DC-DC converters * Knowledge of control theory and stability of power electronics, including experience characterizing control loops and impedances in the laboratory * Experience designing power filters for low noise outputs and for power line electromagnetic compatibility (EMC) * Hands-on experience with testing and troubleshooting electronics and power converters using laboratory instruments such as oscilloscopes, impedance analyzers, spectrum analyzers, electronic loads, and signal generators * Experience with electronics schematic capture and printed circuit board (PCB) layout tools such as Altium, OrCAD, Allegro or Xpedition * Experience with analysis and simulation tools such as SPICE, LTSPICE, SIMetrix/SIMPLIS, PLECS, Simulink, MATLAB, MathCAD, ANSYS Q3D and SiWave, or HyperLynx * Excellent written and verbal communication skills PREFERRED EXPERIENCE * Master of Science or PhD in Electrical Engineering with research focus in power electronics * Experience designing high-reliability analog and power electronics for automotive, space or defense applications * Knowledge of space radiation environments and radiation effects in electronics * Experience in power electronics applications utilizing GaN or SiC wide bandgap power semiconductor devices * Experience developing design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans * Experience performing worst-case circuit analysis (WCA), stress analysis, failure modes and effects analysis (FMEA), and reliability analysis for power supplies * Experience running board-level power integrity simulation using tools such as Ansys SiWave, or HyperLynx * Experience with power magnetics modeling, design and laboratory characterization * Knowledge of soft switching and resonant power converter topologies (e.g. LLC, CLLC, series resonant, phase shifted full bridge, dual active bridge, etc.) * Knowledge of power stage design for inverters and motor drives * Experience with advanced control schemes for DC-DC power converters (e.g. constant on-time control, boundary mode control, average current mode control) * Programming skills to support hardware test and data processing (Python, MATLAB, etc.) 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 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. We are looking to add a Senior GNC Engineer I to our team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing GNC systems for leading-edge spacecraft, and aerospace communication systems, we would like to hear from you. In this position, you will draw on your experience on previous spacecraft to operate on a small team in the design and analysis of GNC systems for CesiumAstro satellites and payloads. You will be responsible for Guidance, Navigation, and Control through all stages of design, integration, test, and operations. As such, you will perform trade studies, lead design reviews, create models, and complete simulations and system testing. You will build, test, and fly hardware and software. As a CesiumAstro spacecraft team member, you will work on a small team to develop satellites and put them in orbit. Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management to ensure the successful build and launch of our satellite. Element will be the largest, most powerful rideshare satellite in LEO. We’re launching eight of them in the next four years, starting with our first launch this year. Together, our small team will design, build, and iterate to reduce mass and cost while increasing performance, reliability, and manufacturability of a new generation of satellites. Let’s build! JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Master of Science (MS), or Doctorate (Ph.D.) degree in Aerospace Engineering from an accredited university or institution, • Minimum of 6 years of industry experience in satellite attitude and orbit systems, • Expertise in attitude estimation, guidance, and control; coordinate frame transformations; linear algebra; and non-linear systems, • Experience with multiple spaceflight missions from concept to operations, • Experience in low earth orbit satellites, • Experience with post-CDR test failures and on-orbit failures that guide your design and test philosophies, • Experience with successful and unsuccessful recovery from on-orbit failures, • Experience in conceptualization, architecture design, requirements specification, design, test, and operations of various GNC architectures and components, • Familiarity with space mission simulation tools such as STK, Basilisk, GMAT, or FreeFlyer, • Experience defining spacecraft trajectories and orbital requirements, • Fluency with Python and C++, or other modeling languages, • Familiarity with spacecraft mission design including events, pointing modes, maneuver planning, and operations, • Excellent written and verbal communication skills PREFERRED EXPERIENCE, • A focus on satellite navigation, orbit determination, and propulsive maneuvers, • CubeSat and SmallSat experience, • Hands-on experience with spacecraft instrumentation, subsystems, and test labs, • Experience with multiple mission simulation and flight architectures which drives your vision for the next generation of space software, • Experience in LEO, MEO, GEO, and deep space satellites

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. We’re looking for builders, problem-solvers, and system thinkers. We are seeking a Senior Communication System Integration and Verification Engineer I to support the end-to-end integration of communication functions for our communication payload products. This highly technical role combines deep domain expertise in communication systems with hands-on integration and test execution. You will play a critical role in the architecture definition, execution, and delivery of our communication payload products—contributing to requirement definitions, algorithm development, Special Test Equipment (STE) design, verification, and final sell-off. This position is ideal for an engineer passionate about solving complex integration challenges and advancing the standard of excellence in payload delivery.JOB DUTIES AND RESPONSIBILITIES • Responsible for lab and equipment management and guiding key equipment purchase decisions., • Core day-to-day responsibilities include collaborating with design and test engineering teams to develop test requirements, mapping requirements to reusable test architectures and procedures, architecting RF and digital test systems, implementing test plans and procedures, executing verification/validation tests, and logging and presenting results to key stakeholders., • Work closely with design teams to verify and evaluate expected system level performance, • Ability to draw insightful conclusions from test results and troubleshoot system level anomalies for the purpose of providing feedback to design and verification teams, • Ability to adapt test plans based on capabilities of HW/SW delivered by the design teams, compatibility with third-party systems, customer-furnished equipment (CFE), subsystem vendors and availability of the testing equipment., • Support the definition and development of Special Test Equipment (STE) required to verify communications payloads, and coordinate with Test Product teams for execution., • Represent the payload integration effort in program reviews, technical interchange meetings (TIMs), and formal sell-off events as a technical contributor., • Working in a startup environment and are passionate about developing critical test systems for leading-edge satellite communication systems.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor of Science (BS) degree in Electrical Engineering, Communications Engineering, or related technical field, • 4+ years of experience in communications systems engineering, payload integration, or systems development in aerospace, defense, or space environments., • Hands-on experience with lab instruments such as digital oscilloscopes, multimeters, source measurement units, RF signal generators, spectrum analyzers, vector network analyzers, bit-error rate (BER) testers and vector signal analyzers., • Hands-on experience in developing hardware and measurement abstraction layers, and test automation setups using basic scripting and SW development with common programming/scripting languages (Python, MATLAB, C/C++, etc.)., • Understanding of RF and mixed-signal hardware (e.g. amplifiers, filters, ADCs/DACs, antennas) and its effect on test design., • Proficient in performing RF measurements and data analysis including S-parameters, AM/PM, compression, noise figure, harmonics/spurious emission, phase noise, switching speed, bit error rate, adjacent channel power, linearity, EVM and group delay., • Proven expertise in troubleshooting, fault isolation, and test execution skills at the unit, subsystem, and system level., • Hands-on experience with designing test setups in anechoic chambers for antenna systems evaluation. PREFERRED EXPERIENCE, • Master of Science (MS) or higher degree in Electrical Engineering, Communications Engineering, or related technical field, • Knowledge of satellite and wireless communication systems and protocols, • Familiarity with phased array antenna architectures and array calibration

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. We are looking to add a Principal Component Engineer I to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge electronics for satellites, spacecraft, and aerospace systems, we would like to hear from you. In this position, you will be a key member of our product development team, leading the parts and component selection, qualification, failure root-cause analysis, standardization, vendor evaluations, and performance verification efforts. The ideal candidate is experienced in EEE components engineering for commercial space applications. Qualified candidates will have ample growth opportunities, with the potential to build our company and processes through technical leadership roles or broader functional management roles. JOB DUTIES AND RESPONSIBILITIES • Act as CesiumAstro’s technical representative with customers to define testing and qualification requirements for all EEE parts., • Work all aspects of high-reliability EEE parts selection, standardization, qualification, and performance verification on a growing team., • Develop a roadmap for state-of-the-art components, working with the engineering design team for an effective product upgrade strategy while balancing cost and schedule, • Provide EEE part expertise and support on aerospace programs, reviewing customer documents and aligning their needs with the company’s product lines., • Evaluate components for compliance to industry requirements such EEE-INST-002, AEC, TOR, JEDEC, and others., • Author parts plans and process definition documents for internal and external use., • Write and review Engineering Change Orders (ECOs) to component-level procurement and test control documents., • Develop process improvements for streamlined component-level ECOs review and adjudication., • Experience building relationships with space part suppliers., • Review screening and test data received from manufacturers and test laboratories for compliance to specifications, purchase order requirements, and program contracts., • Interface internally with design engineers, reliability engineers, and quality engineers in support of risk mitigation and product development review efforts., • Prepare Non-Standard Parts Approval Requests (NSPARs) and Source Control Drawings (SCDs)., • Perform bill-of-materials cost analysis, components research and obsolescence mitigation, and supplier audits.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree or higher in Electrical Engineering or a related discipline., • Minimum 8 years of relevant prior experience as a component engineer., • Knowledge of component selection, qualification, screening and derating for military and aerospace., • Familiar with management of new part requests, part objects, and part attributes in a Product Lifecycle Management System, • Direct experience with parts plans for high-volume satellite constellations, evaluating parts screening and qualification in the context of high-volume constellation performance., • Excellent communication and interpersonal skills., • Strong desire to change an industry and disrupt incumbent players., • Sense of urgency, with the ability to work independently under agile development timelines., • Willingness to learn and work in both a support capacity and as a lead on differing functions.PREFERRED EXPERIENCE, • Demonstrated technical leadership in component engineering by mentoring junior component engineers and educating designers within your area of expertise., • Participate in failure analysis investigations ofdefective components and author failure analysis reports as required., • Knowledge and working familiarity with key reliability analyses for space mission hardware (prediction, derating, FMECA, WCA)., • Experience with radiation effects on electronics (TID, SEE) and common mitigation techniques., • Knowledge and working familiarity with key materials and process requirements for tin whisker mitigation, • Experience with components in ground or air applications, • Knowledge of EEE component manufacturing processes.

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. We’re seeking a Senior Electronics Test Engineer I - Flying Probe to lead the development and optimization of automated PCBA test programs using our Seica Pilot VX system. This role is ideal for an engineer who blends circuit-level design expertise with hands-on manufacturing test experience and enjoys working across design, production, and quality teams. You’ll be responsible for building and validating flying-probe test sequences, performing CAD/BOM imports, correlating measurements, and troubleshooting complex boards down to the component level. The position also involves improving test coverage, reducing false failures, and influencing design-for-test (DFT) practices across new product introductions.JOB DUTIES AND RESPONSIBILITIES • Develop and debug flying-probe test programs (continuity, isolation, RLC, powered, and functional tests)., • Analyze test data, identify root causes, and implement yield improvements., • Collaborate with design engineers on test-point strategy and circuit accessibility., • Support component selection and perform schematic-level investigations to resolve failures., • Document and release test procedures and reports for production use.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • A Bachelor of Science (BS) or higher degree in Electrical Engineering or similar from an accredited university., • 4 years of experience in PCBA design, test, or manufacturing engineering., • Strong understanding of schematic capture, component selection, and circuit fundamentals (analog, digital, and power)., • Hands-on experience with Seica, SPEA, Takaya, or similar flying-probe systems., • Proficiency in PCBA debug, measurement interpretation, and correlation., • Working knowledge of Kelvin measurement, guarding, isolation testing, and DFT principles., • Excellent communication, documentation, and cross-functional collaboration skills.PREFERRED EXPERIENCE, • Aerospace industry experience.

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. We are looking to add a Senior Electronics Manufacturing Engineer I to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge manufacturing processes for high-reliability, high-volume satellites, we would like to hear from you. In this position, you will be responsible for the manufacturing of Cesium’s diverse array of electronic assemblies for satellites and other aerospace platforms. Cesium partners with contract manufacturers (CMs) to fabricate and assemble our products; as such, you will serve as Cesium’s in-house expert and primary point-of-contact for our CMs. Day-to-day responsibilities range from highly technical manufacturing analysis and design – such as choosing solder chemistries and root-causing non-compliances – to administrative functions like supplier review and process documentation. Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management, and external contract manufacturers to industrialize space products for a growing market that combines the rigor of space with the scale of commercial electronics.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • A Bachelor of Science (BS) in Mechanical, Electrical, Industrial, or Manufacturing Engineering with a minimum of 4 years of industry experience., • Experience with Design for Manufacturability (DFM) of electronics hardware., • Knowledge of industry standards such as IPC-A-610 and J-STD-001., • Experience with change management, nonconformance documentation, root cause analysis, corrective action systems, and acceptance criteria., • Experience with cost analysis, managing suppliers, and configuration management., • Excellent written and verbal communication skills.PREFERRED EXPERIENCE, • Statistical process control., • Experience in aerospace or other high-reliability industries., • Proficiency with PLM and ERP software., • Proficiency in AS9100/ISO9001 quality management system requirements., • Proficiency in lean manufacturing methodologies.

Job DescriptionLast Energy is productizing a micro-modular nuclear plant and transforming the manufacturing process with the goal of delivering hundreds of installations per year by the end of the decade. Our organizational structure allows for "Swiss-Army knife contributors" who have the ability to fulfill various roles depending on the project type, their interest, expertise, and availability. These functional divisions include: (A) project owner, (B) subject matter expert / advisor, (C) individual contributor / design engineer, (D) research analyst or (E) external relationship manager. The role of Project Engineer is ideal for a mid-career candidate who may be interested in some project management or have some outward facing responsibilities but still stay involved in design engineering and may be feeling pigeon-holed or up against a ceiling at their current role. We look for:• Insatiable appetite for learning• Strong teamwork and communication skills• Creativity and willingness to take on new challenges • Extreme flexibility and open to "kill their darlings"• Discipline, thoroughness, and extreme focus when needed If this sounds like you, we'd love to chat!Qualifications • Bachelor’s degree in engineering or related field, • 2+ years of relevant engineering experience, • Ability to manage multiple tasks and adapt in a dynamic environment, • Resident or willing relocate to Austin, TX area

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. We’re seeking a Senior Antenna Test Engineer I with experience in RF anechoic chamber measurements and Antenna characterization to join our Test Engineering team. You’ll work closely with RF, antennas, and systems engineers to define, execute, and analyze antenna measurement campaigns — including radiation patterns, gain, efficiency, polarization, and over-the-air performance — using state-of-the-art chamber setups. JOB DUTIES AND RESPONSIBILITIES • Plan, setup, and execute antenna and RF measurement campaigns in anechoic chambers, including Near-Field and far-field radiation patterns, gain, efficiency, and polarization characterization., • Perform VNA calibration and measurement, spectrum analysis, and signal generation., • Align, position, and configure devices under test (DUTs), reference antennas, and positioners to maximize measurement fidelity., • Develop, refine, and document test procedures, setups, and data and test analysis scripts., • Collaborate with design and systems teams to troubleshoot anomalies and product development., • Manage and maintain chamber instrumentation, cables, and ancillary RF equipment., • Develop custom test code, to enhance test performance and reduce test time.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor of Science (BS) or higher in Electrical Engineering, Physics, or a related field., • 4+ years of experience in RF testing, with significant hands-on experience in anechoic chamber antenna measurements., • Proficient with Vector Network Analyzers (VNA), spectrum analyzers, signal generators, and associated RF instrumentation., • Demonstrated ability to perform pattern measurements, gain and efficiency extraction, and polarization characterization., • Strong understanding of RF fundamentals: matching, S-parameters, near field and far-field measurements, and chamber effects., • Experience with automated test procedures and data processing (Python and C#)., • Excellent written and verbal communication skills, with attention to detail in documentation and reporting.PREFERRED EXPERIENCE, • Experience with phased array testing, antenna and phased array troubleshooting, and OTA testing., • Antenna design experience., • Familiarity with NSI control software and positioner automation.

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. We are looking to add a Principal Communication Systems Engineer I with a focus on network architecture to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you. JOB DUTIES AND RESPONSIBILITIES • Collaborate with customers and internal stakeholders to define networking architectures and operational concepts for space-based communication systems., • Develop hardware and software requirements for network elements such as routers and switches.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • 10+ years of systems engineering experience, at least 4 years in space and/or ground-based network architecture., • Experience with multiple access and wireless communications systems., • Experience in packet network and router/switch architecture, analysis, and modeling., • Proficiency in developing hardware/software architectures for link, network, and/or transport layer processing chains., • Experience with networking protocols and approaches, including IPv4/v6, MPLS, Ethernet, SNMP, NETCONF/YANG, gNMI, QoS and queue management., • Proficiency in communications subsystem trades and analysis., • Proficiency in requirements allocation and verification for communications subsystems., • Proficiency in defining interfaces between communications subsystems, both physical and messaging layer., • Experience with MBSE concepts, standards, and tools (e.g. Cameo/SysML) for developing and communicating architecture., • Experience with design for testability, test plan development, laboratory testing of network devices using commercial test equipment (e.g. Keysight/Ixia), integration/testing with other subsystems., • Ability to work with interdisciplinary team of hardware, firmware, and software engineers to communicate and drive architecture implementation.PREFERRED EXPERIENCE, • Experience using heterogeneous network modeling and emulation tools such as CORE, EMANE., • Experience with Software Defined Networks (SDNs)., • Proficiency with algorithms, and ability to review and apply algorithms literature on graphs, network flow optimization, task and resource scheduling, dynamic topology., • Familiarity with hardware/firmware design issues, including clocks, configurable logic, storage elements, power/reset sequencing, data correction., • Experience with cyber architecture for space and ground applications, including NIST RMF controls, RoT, ZTA, KMI/COMSEC/TRANSEC, red-black boundary management.

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. We are looking to add a Manufacturing Test Engineer II to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge manufacturing processes for high-reliability, high-volume satellites, we would like to hear from you. In this position, you are responsible for the analysis, and implementation, execution of engineering test plans and procedures. The ideal candidate possesses a strong combination of hardware and software knowledge with proficiencies in test equipment, test architectures, and automation. The successful candidate will work closely with multi-disciplinary teams to address company-wide hardware test needs. Engineers on this team must have working knowledge of overall schematics, operations, manufacturing, testing. Core day-to-day responsibilities include collaborating with engineering teams to lead and develop test requirements, mapping requirements to reusable test architectures and procedures, implementing test plans and procedures, and logging and presenting results to key stakeholders. Additional responsibilities include lab and equipment management and guiding key equipment purchase decisions. Evaluate non-conformances to determine root cause and create actionable items and system improvements.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • A Bachelor of Science (BS) with 2+ years of experience in Mechanical, Electrical, Industrial, or Manufacturing Engineering., • Demonstrated experience in the development and implementation of test systems., • Applied experience in test optimization for manufacturing environments., • Test architecture design and development including scripting, test executives, hardware, and measurement abstraction layers., • Programming or scripting experience (Python or C#)., • Excellent written and verbal communication skills., • Demonstrated engineering intuition, critical thinking, and comfort with ambiguity., • Experience writing test plans, procedures and providing go/no-go judgment and rationale., • Experience in a production environment.PREFERRED EXPERIENCE, • Programming or scripting experience (MATLAB, C/C++, etc.)., • Proficiency with statistics and metrology.

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. We are seeking an Engineering Manager, RF Hardware to lead and coordinate our RF teams across multiple sites and product lines. This leadership role is critical to ensuring design consistency, best practices, and high-quality deliverables across a broad portfolio of hardware platforms. This position is a highly technical leadership role responsible for delivering well-engineered RF hardware—on schedule—across all product lines. This role provides technical ownership for board- and box-level RF hardware development while leading team execution, staffing, and engineering process maturity in a fast-growing aerospace and defense startup environment. In addition to people and process leadership, this role contributes hands-on technical expertise to critical RF hardware designs, reviews, and debug efforts, ensuring products are scalable, manufacturable, and testable at production volumes.JOB DUTIES AND RESPONSIBILITIES • Maintain technical integrity and engineering excellence for RF electronics development across the company., • Establish, mature, scale, and enforce engineer-friendly RF hardware development processes, including analysis and simulation templates, schematic design standards, layout best practices, and design and review checklists., • Lead and participate in rigorous design reviews, ensuring appropriate subject matter expert (SME) engagement., • Apply strong working knowledge of adjacent disciplines—power electronics, digital electronics, mechanical engineering, and firmware/software—to ensure board- and system-level success., • Contribute directly to board-level and unit-level RF hardware designs as needed., • Lead or support critical debug efforts across development and production phases., • Ensure RF hardware designs are buildable and testable at scale using DFM and DFT best practices., • Drive disciplined handoff from engineering to manufacturing through close collaboration with manufacturing engineering, supply chain, and production test engineering., • Ensure designs meet quality, reliability, and scalability requirements for production environments., • Lead RF component selection strategies aligned with product requirements, customer needs, and industry trends., • Manage RF supplier relationships and technology roadmaps to support long-term product evolution., • Partner with Supply Chain to ensure component availability, risk mitigation, and cost awareness.TEAM LEADERSHIP, STAFFING & PERFORMANCE RESPONSIBILITIES, • Build, scale, and lead a high-performing RF hardware engineering team., • Advocate for realistic schedules, then hold the team accountable to delivery commitments., • Lead hiring activities, including writing job descriptions, conducting interviews, and making hire/no-hire decisions., • Establish clear development paths and growth opportunities for high-performing engineers., • Address performance issues promptly and constructively., • Actively close skill gaps through hands-on contribution or targeted hiring., • Provide one-on-one coaching, mentoring, and technical guidance., • Serve as a key contributor to early-stage engineering execution planning, including collaboration with Business Development., • Drive design commonality and reuse across products to accelerate execution and reduce risk., • Plan and manage budgets related to staffing, capital equipment, and design/analysis software., • Maintain strong working relationships across Engineering, Manufacturing, Supply Chain, Quality, and Operations.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree in Electrical Engineering or related field required., • Minimum of 7-9 years of progressive RF hardware engineering experience, preferably in aerospace, defense, or regulated manufacturing, including 1–3 years in leadership/management experience., • Demonstrated deep expertise in RF hardware design at the board and system levels., • Strong understanding of RF components, system architectures, and signal integrity principles., • Working knowledge of power electronics, digital electronics, mechanical integration, and firmware interactions., • Experience supporting design for manufacturability (DFM), design for test (DFT), and transition from development to production., • Proven ability to conduct rigorous technical reviews, mentor engineers, and communicate effectively across disciplines., • Ability to balance technical rigor with execution speed in a fast-paced development environment., • Proficiency with RF simulation and analysis tools such as ADS, HFSS, CST, or equivalent., • Experience using schematic capture and PCB layout tools., • Familiarity with product lifecycle management (PLM) systems., • Proficiency with Microsoft Office tools, including Excel, PowerPoint, and Word.

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. We are looking to add a Principal Systems Engineer I to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you. The ideal candidate will have a strong background in system engineering, experience in space technology, and the ability to be the technical point of contact for our communication programs. In this position, you will help develop space architecture concepts, sub-system design, payload design, requirements development, analysis and decomposition, high-level software and hardware system architecture design, concept of operations (CONOPS) development, and risk assessment. You will coordinate activities across multidiscipline engineering teams, raise issues at the program level, and help drive complex programs to success.JOB DUTIES AND RESPONSIBILITIES • Evaluate customer and operational needs to define requirements, integrate technical parameters, and assure compatibility of all physical, functional, and program interfaces., • Collaborate with the program management team to support project scheduling and coordination., • Partner with program management to be the primary outward-facing team with external customers for technical baseline discussions., • Act as the liaison between program management, engineering, and manufacturing ensuring effective and organized communications., • Participate in the development of system engineering processes for requirements management, flow down, and traceability., • Perform risk analysis and develop mitigation strategies., • Identify and resolve issues that may impede the progress of engineering teams., • Foster a culture of efficiency and continuous improvement within our programs.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree in electrical engineering or a related field., • A minimum of 9 years of experience with emphasis on space-based communication payloads., • Practical experience with antenna and RF systems., • Experience working with product/component developers and vendors who provide critical functionality to the overall system., • Excellent written and verbal technical communication skills., • Proficiency with a requirements management tool such as DOORS or Jama., • Ability to define work direction, track milestones, and demonstrate progress on large open-ended projects., • Sense of urgency, with the ability to work well under pressure., • Excellent problem-solving skills and analytical abilities, with the capability to identify, assess, and resolve complex technical challenges and design issues.

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. We are looking to add an experienced Principal GNC Engineer I to our team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing GNC systems for leading-edge spacecraft, and aerospace communication systems, we would like to hear from you. In this position, you will draw on your experience on previous spacecraft to operate on a small team in the design and analysis of GNC systems for CesiumAstro satellites and payloads. You will be responsible for Guidance, Navigation, and Control through all stages of design, integration, test, and operations. As such, you will perform trade studies, lead design reviews, create models, and complete simulations and system testing. You will build, test, and fly hardware and software. As a CesiumAstro spacecraft team member, you will work on a small team to develop satellites and put them in orbit. Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management to ensure the successful build and launch of our satellite. Element will be the largest, most powerful rideshare satellite in LEO. We’re launching eight of them in the next four years, starting with our first launch this year. Together, our small team will design, build, and iterate to reduce mass and cost while increasing performance, reliability, and manufacturability of a new generation of satellites. Let’s build! JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Master of Science (MS), or Doctorate (Ph.D.) degree in Aerospace Engineering from an accredited university or institution, • Minimum of 9 years of industry experience in satellite attitude and orbit systems, • Deep expertise in spacecraft attitude estimation, guidance, and control, including nonlinear state estimation theory and implementation (e.g., Extended Kalman Filters (EKF), Multiplicative EKF (MEKF), Unscented Kalman Filters (UKF), or other nonlinear observers); coordinate frame transformations; linear algebra; and nonlinear systems, • Experience with multiple spaceflight missions from concept to operations, • Experience in low earth orbit satellites, • Experience with post-CDR test failures and on-orbit failures that guide your design and test philosophies, • Experience with successful and unsuccessful recovery from on-orbit failures, • Experience in conceptualization, architecture design, requirements specification, design, test, and operations of various GNC architectures and components, • Familiarity with space mission simulation tools such as STK, Basilisk, GMAT, or FreeFlyer, • Experience defining spacecraft trajectories and orbital requirements, • Fluency with Python and C++, or other modeling languages, • Familiarity with spacecraft mission design including events, pointing modes, maneuver planning, and operations, • Excellent written and verbal communication skills PREFERRED EXPERIENCE, • Demonstrated experience designing, implementing, tuning, and validating flight-grade state estimators, including covariance propagation, bias estimation, sensor fusion (e.g., IMU, star tracker, GNSS, magnetometer), and Monte Carlo-based performance analysis, • Experience performing observability analysis, estimator consistency analysis (e.g., NEES/NIS), and robustness evaluation under sensor degradation or fault conditions, • Experience architecting end-to-end ADCS estimation pipelines, including fault detection, measurement rejection, mode-dependent filter configurations, and on-orbit estimator anomaly resolution, • CubeSat and SmallSat experience, • Hands-on experience with spacecraft instrumentation, subsystems, and test labs, • Experience with multiple mission simulation and flight architectures which drives your vision for the next generation of space software, • Experience in LEO, MEO, GEO, and deep space satellites

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. We are looking to add a Senior Electronics Manufacturing Engineer II to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge manufacturing processes for high-reliability, high-volume satellites, we would like to hear from you. In this position, you will be responsible for the establishing the manufacturing of Cesium’s NPI satellite platform. Responsibilities will include assist in the establishment of the NPI facility by contributing to layout design, equipment selection, and workflow optimization tailored for satellite production. Support the transition of prototypes to full-scale production by collaborating with design and engineering teams.Develop and implement quality control procedures and inspection protocols to ensure compliance with industry standards and specifications for satellite manufacturing. Conduct root cause analysis and implement corrective actions for manufacturing defects in electronics and mechanical components. Be a manufacturing representative to outside CM’s and help ensure timely delivery, quality of external hardware. Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management to ensure the successful build and launch of our satellite.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • A Bachelor of Science (BS) in Mechanical, Electrical, or Manufacturing Engineering with a minimum of 6 years of industry experience., • Experience with Design for Manufacturability (DFM) of electronics hardware., • Knowledge of industry standards such as IPC-A-610 and J-STD-001., • Knowledge of mechanical assembly, CNC machining, • Experience with change management, nonconformance documentation, root cause analysis, corrective action systems, and acceptance criteria., • Experience with cost analysis, managing suppliers, and configuration management., • Excellent written and verbal communication skills., • Experience working in an NPI Environment, • Ability to establish scalable manufacturing processes. PREFERRED EXPERIENCE, • Experience in aerospace or other high-reliability industries., • Proficiency with PLM and ERP software., • Proficiency in AS9100/ISO9001 quality management system requirements., • Experience successfully tackling multiple high-priority tasks.

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. We are looking to add a Senior Electronics Engineer II to our Digital/Mixed-Signal Electronics team. If you enjoy working in a startup environment and are passionate about developing leading-edge electronics for satellites, spacecraft, and aerospace systems, we would like to hear from you. At the Senior II level, you will be tasked with full-stack hardware development for complex modules and small systems. You will have the opportunity to start at concept development and progress through detailed design, analysis, layout, build, test, and delivery, doing hands-on work at each phase. The Senior II level also introduces technical leadership opportunities, gaining responsibility for small teams of hardware engineers developing new products and systems. At a small company and a startup, your work will make direct contributions to the success of the business. The work is challenging and impactful, requiring both breadth and depth of technical knowledge. Our products are made for high-reliability space and airborne applications, so designs require high levels of technical rigor while maintaining the agility of a startup environment. The successful candidate will also present engineering design review materials to our customers and executive team. As such, excellent written and verbal communication skills are required.JOB DUTIES AND RESPONSIBILITIES • Own end-to-end design of complex electronics modules and small systems, from concept and architecture through schematic, layout, test, and production., • This role focuses on digital and mixed-signal hardware development for space applications. Product lines include state-of-the-art software-defined radios (SDRs), single-board computers (SBCs), and control & telemetry subsystems for complex phased array antenna payloads., • Lead small teams of hardware engineers to develop new products with multiple electronics modules., • Develop hardware architecture and write hardware requirements for systems of moderate complexity., • Perform detailed and complete schematic design for complex boards, ranging from key components to supporting passives., • Perform detailed PCB layout in Altium Designer for complex boards, often working with a PCB Designer., • Complete board-level and box-level analysis such as worst-case circuit analysis, signal integrity analysis, and power integrity analysis, and guide interpretation of results., • Develop bring-up plans and design verification plans for new hardware and systems., • Perform bring-up and key verification testing of modules and small integrated systems, often working with a technician to complete validation., • Release modules and assemblies to production, working with the Manufacturing and Test Engineering teams., • Mentor junior and senior engineers to build technical understanding and professional development., • Use working knowledge of adjacent fields, such as software and mechanical, to streamline development of electronics modules and systems.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor of Science (BS) degree or higher in Electrical Engineering from an accredited university., • Minimum of 6 years of relevant experience in board-level electronics design, analysis, and test., • Significant experience designing electronics with rigor, in teams that value thorough analysis and testing. Aerospace design experience preferred but not required., • Expertise in aspects of digital and mixed-signal electronics, such as signal integrity, implementing FPGAs on boards, ADCs/DACs, and telemetry subsystems. Experience with high-speed digital (e.g. 10+ Gbps SerDes) and SDR applications are preferred but not required., • Experience owning the design phase of complex board-level electronics, including trade studies, key part selection, and detailed design., • Experience delivering hardware designs through production and deployment., • Expertise in PCB layout, including high-density interconnect (HDI) stackup design and high-speed routing., • Experience running board-level signal integrity and/or power integrity simulation tools such as Ansys SIwave, ADS SIPro, or Mentor Hyperlynx., • Proven success in debugging, root cause analysis, and design reviews., • Strong working knowledge of adjacent fields, such as software and mechanical, that guides hardware design and system design., • Expert-level proficiency in electronics design tools such as Altium., • Extensive lab experience for bring-up and verification of new hardware., • Excellent written and spoken communication skills.PREFERRED EXPERIENCE, • 8+ years of professional electronics design experience., • Experience leading small teams of hardware engineers to develop multi-module assemblies, including hardware architecture, requirements, make/buy decisions, and interconnects., • Expertise in high-speed digital electronics (e.g. 10+ Gbps SerDes), including signal integrity simulation and lab verification, SerDes optimization (e.g. emphasis and drive level), and high-speed interconnect solutions., • Expertise in software-defined radio (SDR) applications., • Direct experience designing high-reliability electronics for space or defense applications, including part derating, worst-case analysis, and thermal constraints.

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. We are seeking a Principal Power Electronics Engineer I (2025538) to join our growing spacecraft payload development team. In this position, you will contribute across the entire development lifecycle of next-generation power electronics hardware for satellites and space power systems payloads—from leading the definition of power system architectures and trade studies to detailed circuit design, simulation, printed circuit board (PCB) layout, verification and integration testing, production transition, and manufacturing support. DUTIES AND RESPONSIBILITIES * Define electrical power system architecture, and derive power subsystem requirements * Design DC-DC power converters, motor drives, inverters, power management and control circuits from concept to production release * Perform detailed design for low to high complexity analog and power electronics circuits ranging from single DC-DC power converters to multi-output power supply modules * Perform modeling and analysis of analog and power electronics designs including worst-case circuit analysis (WCA), stress analysis, small signal modeling analysis, failure modes and effects analysis (FMEA), reliability analysis, and power integrity analysis * Develop design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans for power converters and power supply designs * Lead board bring-up and design verification testing of power electronics circuits and modules * Lead system integration, qualification campaigns, and release of analog and power electronics designs into production * Mentor younger engineers and foster knowledge sharing * Lead a small team of power electronics engineers to drive project execution * Perform research and monitor power electronics industry trends to drive innovation and generate intellectual property in this area REQUIREMENTS AND MINIMUM QUALIFICATIONS * Bachelor of Science (BS) degree or higher in Electrical Engineering (or related) from an accredited university. * Minimum of 9 years of experience designing analog and power electronics * Experience working with electrical power systems and subsystems, including developing power architecture and power requirements, performing trade studies for size, weight, power, and cost optimization (SWAP-C), selecting power converter topologies, and defining power management and control blocks * Experience with modeling and control of DC-DC converters and power stage design of different isolated and non-isolated DC-DC power converters (e.g. discrete linear regulators, Buck, Boost, Buck-boost, Flyback, Forward, Half-bridge, Full bridge, and Resonant converters) * Experience designing custom signal and power magnetics, and power filters for low noise and electromagnetic compatibility (EMC) * Experience developing design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans * Experience performing worst-case circuit analysis (WCA), stress analysis, failure modes and effects analysis (FMEA), and reliability analysis for power supplies * Extensive hands-on experience with testing and troubleshooting electronics and power converters using laboratory instruments such as oscilloscopes, impedance analyzers, spectrum analyzers, electronic loads, and signal generators * Experience with electronics schematic capture and printed circuit board (PCB) layout tools such as Altium, OrCAD, Allegro or Xpedition * Experience with analysis and simulation tools such as SPICE, LTSPICE, SIMetrix/SIMPLIS, PLECS, Simulink, MATLAB, MathCAD, ANSYS Q3D and SiWave, or HyperLynx * Excellent written and verbal communication skills PREFERRED EXPERIENCE * Master of Science or PhD in Electrical Engineering with research focus in power electronics * Experience designing high-reliability analog and power electronics for automotive, space or defense applications * Knowledge of space radiation environments and radiation effects in electronics * Experience in power electronics applications utilizing GaN or SiC wide bandgap power semiconductor devices * Experience running board-level power integrity simulation using tools such as Ansys SiWave, or HyperLynx * Experience with soft switching and resonant power converter topologies (e.g. LLC, CLLC, series resonant, phase shifted full bridge, dual active bridge, etc.) * Experience with power stage design for inverters and motor drives * Knowledge of modeling and control of inverters and motor drives * Experience with advanced control schemes for DC-DC power converters (e.g. voltage mode with feedforward control, constant on-time control, V2 constant on-time control, phase shift modulation, average current mode control) * Experience with isolation and grounding, failure mode effects analysis and fault tolerant design, and thermal management of power electronics * Programming skills to support hardware test and data processing (Python, MATLAB, etc.) * Knowledge of maximum power point tracking (MPPT) for solar power applications, battery sizing and battery management systems, power conversion for electric propulsion systems, power conditioning, power management, and power distribution units for spacecraft technology * Experience designing and testing power electronics units to meet industry standards and requirements in the automotive, industrial, space or military markets (e.g., FCC, CISPR, UL safety, ECSS, NASA, MIL standards) 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 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. In this role, a systems engineer is responsible for utilizing commercial modeling and simulation tools to synthesize conceptual aerospace and defense systems into executable digital models to aid multi-disciplined design teams in quickly and accurately evaluating expected performance against design requirements. This candidate will be expected to build expertise across commercial digital modeling and simulation tools, in particular leveraging Ansys STK (System Tool Kit) software which delivers a physics-based, mission-centric digital design and test environment for analyzing and designing systems across various domains like space, air, sea, and ground missions. This candidate will be expected to continually expand and build their knowledge and use of this systems modeling and simulation environment while also incorporating external simulation artifacts from other multi-physics modeling and simulation tools commonly utilized by domain-centric design engineering groups such a CFD tools, mechanical CAD solutions, RF systems design and test tools, optics, and many other engineering discipline focus areas. It will be critically important for this candidate to be able to communicate with colleagues across multi-disciplines and help incorporate their designs, analysis results, and model anticipated system behaviors through a fully integrated digital simulation approach. Familiarity with Model Based Systems Engineering (MBSE) practices is highly desired.JOB DUTIES AND RESPONSIBILITIES • Effectively leverage a digital modeling and simulation ecosystem of tools to support the design, test, validation and verification needs of internal project team leaders., • Proactively identify workflow automations to help establish streamlined processes for repeatable modeling and simulation chains for efficient re-use of established our organization's unique mod/sim techniques., • Support briefings to design team leaders to demonstrate/share results during design review milestones., • Proactively investigate interoperability across existing design tools that our engineering organization leverages, and suggest/lead identified improvements to help establish and build our end-to-end digital engineering toolchains., • Working closely with development and engineering design teams to inject digital modeling and simulation tools into their workflows in non-disruptive ways by helping to lead data pipeline integrations, automations, and routines that increase overall efficiency and shorten design lifecycles., • Collaborating with software developers, DevOps, and infrastructure teams to ensure application stability and performance.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • A minimum of 2 years of experience with a bachelor's degree in aerospace engineering, or a related field is required., • Demonstrable experience or familiarity with digital systems engineering methodologies., • Familiarity with STK and its modules (e.g., Astrogator, SOLIS, TETK) for digital mission engineering is critical., • Knowledge of various operating systems, devices, and software applications is expected., • Proficiency with common engineering scripting languages (MATLAB, Python, Javascript, and similar)., • Familiarity (or ability to gain necessary skills) with general engineering design tools commonly used across disciplines such as Fluids, Electronics, Thermal, Optics, and Mechanical tools such as the Ansys tool suites., • Experience with Model Based Systems Engineering practices and languages (SysML), • Proficiency in functional digital systems engineering and understanding of design, test, review methodologies., • Experience with test case design and execution, as well as defect tracking and reporting tools., • Strong understanding of product design/test workflows in a commercial production environment, • Excellent analytical and problem-solving skills to interpret technical data and information, and resolve complex issues., • Ability to perform root cause analysis and develop effective solutions., • Exceptional written and verbal communication skills are essential for interacting with customers, development teams, and other stakeholders., • Strong teamwork and collaboration skills to work effectively with diverse teams., • Customer-focused mindset and commitment to customer satisfaction., • Organizational skills to manage workload, prioritize tasks, and keep track of documentation and records., • Ability to manage simulation and process data management holistically and document configuration changes.

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. We are looking to add a Senior RF Engineer I to our team. The ideal candidate has experience in board-level RF electronics design. If you enjoy working in a startup environment, and are passionate about developing leading-edge RF hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you. In this position, you will be responsible for RF circuits and systems through all phases of the development process. The ideal candidate will be proficient in board-level schematic design and PCB layout of RF circuits, and system-level communications concepts such as link budgets and modulation schemes. The work will include many aspects of phased array communication systems, including RF front-ends, frequency converters and synthesizers, filters, beamformers, power dividers, and phased array antennas. As a Cesium hardware team member, you will be responsible for RF hardware designs from initial concept through requirements definition, part selection, detailed design, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products. Hardware design tasks will include block diagrams, detailed schematics, PCB layout and routing, simulations, and test design. The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Bachelor of Science (BS) or Master of Science (MS) degree in Electrical Engineering (EE) from an accredited university or institution., • Minimum of 4 years of industry experience in design and analysis of RF electronics design, analysis, test, and troubleshooting., • Experience with professional simulation tools such as CST and ADS, as well as EDA tools such Altium., • Hands-on experience with lab instruments such as vector network analyzers, spectrum analyzers, signal generators, and oscilloscopes., • Excellent written and verbal communication skills.PREFERRED EXPERIENCE, • MATLAB or other programming languages., • Aerospace electronics design, development, and qualification., • Worst-case circuit analysis, failure method and criticality analyses, and reliability analysis., • Antenna design.

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. We are looking to add a Principal Hardware Engineer I to our team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing leading-edge electronics for satellites, spacecraft, and aerospace systems, we would like to hear from you. At the Principal level, you will be tasked with full-stack hardware development for complex modules and hardware systems. You will have the opportunity to start at concept development and progress through detailed design, analysis, layout, build, test, and delivery, doing hands-on work at each phase. The Principal level also includes technical leadership opportunities, gaining responsibility for critical designs and teams of engineers developing new products and systems. At a small company and a startup, your work will make direct contributions to the success of the business. The work is challenging and impactful, requiring both breadth and depth of technical knowledge. Our products are made for high-reliability space and airborne applications, so designs require high levels of technical rigor while maintaining the agility of a startup environment. The successful candidate will also present engineering design review materials to our customers and executive team. As such, excellent written and verbal communication skills are required.JOB DUTIES AND RESPONSIBILITIES • Own end-to-end design of complex electronics modules and systems, from concept and architecture through schematic, layout, test, and production. Products may include high-speed digital, power electronics, and/or RF., • Lead teams of hardware engineers to develop new products with multiple electronics modules., • Provide subject matter expertise in support of hardware development across the company., • Develop hardware architecture and write hardware requirements for systems of high complexity., • Perform detailed and complete schematic design for complex boards, ranging from key components to supporting passives., • Perform detailed PCB layout in Altium Designer for complex boards, often working with a PCB Drafter., • Complete analysis such as worst-case circuit analysis, signal integrity analysis, and power integrity analysis. Guide analysis methodology., • Develop bring-up plans and design verification plans for new hardware and complex systems., • Perform bring-up and key verification testing of modules and complex integrated systems, often working with a team to complete validation., • Release modules and assemblies to production, working with the Manufacturing and Test Engineering teams., • Mentor junior and senior engineers to build technical understanding and professional development., • Use strong working knowledge of adjacent fields, such as software and mechanical, to streamline development of complex hardware systems.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor of Science (BS) degree or higher in Electrical Engineering from an accredited university., • Minimum of 9 years of industry or university research experience in board-level electronics design, analysis, and test., • Direct experience designing high-reliability electronics and small systems for space or defense applications, including part derating, worst-case analysis, and thermal constraints., • Experience owning the design phase of complex board-level electronics and small hardware systems, including architecture design, trade studies, key part selection, and detailed design., • Multiple experiences delivering hardware products through production and deployment., • Expertise in PCB layout and manufacturing, including high-density interconnect (HDI) stackup design, IPC standards, and industry best practices., • Expertise derisking designs with board-level signal integrity and/or power integrity simulation tools such as Ansys SIwave, ADS SIPro, or Mentor Hyperlynx., • Strong understanding of adjacent fields, such as software and mechanical, that contributes to judicious design of hardware system architectures., • Expert-level proficiency in electronics design tools such as Altium., • Extensive lab experience for bring-up and verification of new hardware, based on in-depth understanding of specialized lab equipment., • Excellent written and spoken communication skills.PREFERRED EXPERIENCE, • Experience leading teams of hardware engineers to develop multi-module assemblies, including hardware architecture, requirements, and interconnects.

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. We are looking to add a Senior RF Engineer II to our team. The ideal candidate has experience in board-level RF electronics design. If you enjoy working in a startup environment and are passionate about developing leading-edge RF hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you. In this position, you will be responsible for RF circuits and systems through all phases of the development process. The ideal candidate will be proficient in board-level schematic design and PCB layout of RF circuits, and system-level communications concepts such as link budgets and modulation schemes. The work will include many aspects of phased array communication systems, including RF front-ends, frequency converters and synthesizers, filters, beamformers, power dividers, and phased array antennas. As a Cesium hardware team member, you will be responsible for RF hardware designs from initial concept through requirements definition, part selection, detailed design, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products. Hardware design tasks will include block diagrams, detailed schematics, PCB layout and routing, simulations, and test design. The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • A Bachelor of Science (BS) or Master of Science (MS) degree in Electrical Engineering (EE) from an accredited university or institution., • 6+ years of industry experience in design and analysis of RF electronics design, analysis, test, and troubleshooting., • Experience with professional simulation tools such as CST and ADS, as well as EDA tools such Altium., • Hands-on experience with lab instruments such as vector network analyzers, spectrum analyzers, signal generators, and oscilloscopes., • Excellent written and verbal communication skills.PREFERRED EXPERIENCE, • Experience with MATLAB or other programming languages., • Experience in aerospace electronics design, development, and qualification., • Knowledge of worst-case circuit analysis, failure method and criticality analyses, and reliability analysis., • Experience with antenna design.

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. We are actively seeking passionate, collaborative, energetic, and forward-thinking individual to join our team as a Principal RF Engineer I. The ideal candidate has extensive experience in board-level and system-level RF electronics design. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you. In this position, you will be responsible for RF circuits, modules, and systems through all phases of the development process. The ideal candidate will be proficient in board-level schematic design and PCB layout of RF circuits, system-level communications concepts such as link budgets and modulation schemes, and end-to-end RF product development. The work will include many aspects of phased array communication systems, including RF front ends, frequency converters and synthesizers, filters, beamformers, power dividers, and phased array antennas. As a principal hardware team member, you will be responsible for RF system and hardware designs from initial concept through requirements definition, architecture definition, part selection, detailed design, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products. Hardware design tasks will include block diagrams, detailed schematics, PCB layout and routing, simulations, and test design. Principal Engineers also serve as technical and professional mentors in their field and may be given the opportunity to lead company programs. The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.Successful candidates will require: • Bachelor of Science (BS)) degree in Electrical Engineering (EE) from an accredited university or institution. Master of Science (MS) desired., • Minimum of 9 years of industry experience in design and analysis of RF electronics and systems., • Expert-level proficiency in professional simulation tools such as CST and ADS, as well as EDA tools such Altium., • Extensive hands-on experience with lab instruments such as vector network analyzers, spectrum analyzers, signal generators, and oscilloscopes., • Excellent written and verbal communication skills.Preferred experience includes:, • Python or other programming languages., • Aerospace electronics design, development, and qualification., • Worst-case circuit analysis, failure method and criticality analyses, and reliability analysis., • Antenna design

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. We are looking to add a dedicated and talented Senior Quality Engineer to our team. In this position, you will work closely with an integrated team of Cesium managers, engineers, and other cross-functional personnel in the production of state-of-the-art satellite communication systems.JOB DUTIES AND RESPONSIBILITIES • Establish, implement, and maintain quality management system procedures and processes., • Resolve nonconformances with cross-functional teams using failure analysis, root cause, corrective action, and 8D methodologies., • Conduct supplier performance evaluations and supplier audits including metrics reporting., • Investigate, evaluate, and resolve supplier nonconformances and corrective actions., • Lead process improvement projects to drive results across the organization., • Develop and drive quality objectives and measurable metrics., • Manage and conduct QMS training., • Support internal and external QMS audits in accordance with AS9100 and applicable requirements., • Support and interface across functional disciplines including Supply Chain, Manufacturing, and Engineering personnel.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree in a technical field required., • 8+ years relevant work experience., • Experience with continuous quality improvement activities in a manufacturing environment., • Experience with AS9100 or ISO9001 Quality Management Systems compliance., • Strong attention to detail and ability to follow procedures., • Strong interpersonal skills and ability to work with others in a positive and collaborative manner.PREFERRED EXPERIENCE, • Experience in the aerospace or electronics industry.

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. We are looking to add a Senior Verification Engineer I to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you.JOB DUTIES AND RESPONSIBILITIES • Contribute to the evaluation and technical implementation of FPGA and digital design simulation, verification and emulation infrastructure., • Contribute to the development, maintenance and phased deployment of continuous integration and regression testing infrastructure., • Develop state-of-the-art UVMf-based top-level and module-level testbenches using block-to-top best practices for reusability, including both control and data plane stimulation using VIP & System Verilog DPI-C integration with existing MATLAB and Python numerical models., • Lead the development of reusable custom VIP modules., • Work closely with the engineering and senior leadership teams to train and mentor engineers at all experience levels on UVMf testbench usage and modern approaches to FPGA/digital design. Work with the modeling and scientific staff to implement DPI-C dataplane verification interfaces into existing MATLAB and Python models., • Aid the Lead Verification Engineer in evaluating current processes regarding FPGA and digital design with a focus on Xilinx TLM models and QEMU-RP integration., • Work closely with vendors to define requirements of future simulation model deliverables., • Maintain up-to-date knowledge of industry best-practices regarding FPGA and digital design methodologies., • Work closely with the engineering leadership team to evaluate and non-disruptively implement process improvements.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • A Bachelor of Science (BS) or Master of Science (MS) degree in Computer Science, Electrical Engineering, or Computer Engineering., • Minimum of 4 years of industry experience in verification and automation., • Deep knowledge of FPGA digital design verification techniques including VHDL, Verilog, SystemVerilog, C/C++, SystemC, UVM/UVMf, DPI-C, TLM, Formal CDC and functional analysis, QEMU and VIP., • Expert-level knowledge of digital design automation infrastructure, including CI, regression testing and HIL testing., • Competency with Linux., • Advanced-level knowledge of vendor-provided FPGA development tools with a focus on Xilinx tools., • Desire and ability to train and mentor while maintaining a positive and productive attitude.

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. We are looking to add a Supplier Quality Engineer II to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge electronics for satellites, spacecraft, and aerospace systems, we would like to hear from you.JOB DUTIES AND RESPONSIBILITIES • Implement and maintain supplier quality processes and documentation in accordance with AS9100, leveraging business systems functionalities to drive process efficiency and effectiveness., • Work cross-functionally with engineering, operations, supply chain to ensure supplier flow down and compliance to QMS, customer, industry, regulatory/statutory, and any applicable requirements., • Maintain approved suppliers including supplier qualification, periodic performance review, supplier relationship management, risk assessment, and removal, if needed., • Provide technical guidance, support, and training to suppliers to ensure alignment to CesiumAstro requirements for execution., • Collaborate with design engineering to ensure suppliers design for manufacturability (DFM) considerations are incorporated., • Perform nonconformance investigation and drive root cause corrective action when supplier issues occur., • Support disposition of nonconformances including rework, scrap, and RMA., • Monitor and drive supplier corrective actions requests (SCARs) when escalated., • Establish and analyze supplier performance metrics including defect rate, nonconformances, on-time delivery, cost of rework/scrap, and supplier corrective action resolution., • Use performance data to drive strategic partnerships and develop supplier capability with key suppliers., • Perform supplier site audits and source inspection as needed., • Identify and implement continuous improvement initiatives.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree in engineering, quality, or a related technical field., • Minimum of 3 years of supplier quality experience in aerospace and defense industries., • Experience managing suppliers for space-grade machining, PCBs, PCBAs, integrated assemblies, and test., • Demonstrated skills in supplier management, leadership, communication, and interpersonal skills, • Ability to interpret engineering documentation, requirements, and other supplier flow downs., • Experience with certified quality management systems such as AS9100 or ISO 9001., • Expertise in root cause analysis methodologies and corrective action implementation., • Experience with aerospace and electronics manufacturing.

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. We are designing, building, and launching 8 new satellites in the next four years. They are BIG and super capable RF payload rideshare SmallSats. Our launches are already secured. Our in-house test facilities are built.If you want to own critical communications for these LEO communications satellites and then have the chance to iterate and improve your design at a rapidly growing tech company, this is your chance. We’re looking for builders, problem-solvers, and system thinkers. As a Spacecraft Communication Systems Engineer, you will own the design, configuration, and operation of the satellite’s space-to-ground communication links. You will define how the satellite communicates with the ground in both nominal and off-nominal conditions, ensuring reliable command, telemetry, and fault recovery. The ideal candidate will have a strong background in systems engineering, expertise with both space-based communication payloads and ground terminals, and proven ability to coordinate activities across multidisciplinary engineering teams. JOB DUTIES AND RESPONSIBILITIES • Own the RF Link – Model, analyze and maintain the satellite’s link budget, modulation and coding, ensuring reliable communications from space to ground for all RF links, • Own End-to-End Encryption—Architect hardware-based crypto solutions for flight hardware, manage pass-throughs and end points for users and operations, • Manage Ground Stations—Strong understanding of ground station and network operations with the ability to troubleshoot issues with commercial providers and on-site terminals, • Develop Operational Concepts – Define how the radios are used in different mission phases, including contingency operations and emergency recovery, • Integrate & Test – Own the RF link test campaign and work with flight software and ground teams to validate end-to-end communication link performance, from antenna to command center, • Solve Hard Problems – Optimize low-SWaP communications, mitigate interference, and ensure robust, fail-safe links WHAT A SUCCESSFUL CANDIDATE LOOKS LIKE, • You’re an RF Systems Expert – You understand how to design, analyze, and operate spaceborne communication links., • You Think in Link Budgets – You can balance power, bandwidth, protocols and noise to ensure reliable space-to-ground connectivity. You can answer “what’s the link budget” with thorough analysis, EbN0, EsN0, or effective data rate given a variety of conditions., • Extensive and practical experience with crypto—From COMSEC plan development, key management to system trouble shooting you have applied, on the ground experience., • You Understand Satellites – You know how comms fit into the broader mission, from flight software integration to ground operations, • Independent self-starter – You are comfortable identifying problems and using your expertise to find solutions., • You Move Fast – You can prototype, test, and iterate quickly, focusing on what’s needed to get a mission off the ground.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree in electrical engineeringor a related field, • A minimum of 9 years of experience with emphasis on satellite communications, RF system engineering, or related fields, • Expertise in design, verification, and operation of satellite communication links, • Strong understanding of link budget analysis, modulation schemes, and ground station interfaces, • Hands-on experience configuring and testing ground station equipment and space-qualified radios and antennas, • Practical understanding of how space links fail, why, and how to fix them before they break, • Ability to define and implement communication system CONOPS for nominal and emergency operations

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. We are looking to add a Senior Mechanical Engineer I to our Mechanical Engineering team. If you enjoy working in a startup environment and are passionate about developing space hardware for leading-edge communications satellites, we would like to hear from you. In this position, you will be responsible for mechanical design aspects of Cesium phased array antennas, subsystems, and interfaces through all phases of the development process. The ideal candidate will be versatile and proficient in mechanical analysis, electronics packaging, computer-aided design (CAD), mechanical interfaces, thermal architecture, spacecraft propulsion, deployable and actuated structures, and environmental qualification of spacecraft antennas and payloads. You will be responsible for mechanical designs from concept through space flight including requirements definition, architecture trades and block diagrams, analysis, manufacturing, testing, qualification, and in-orbit support. The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Bachelor of Science (BS) in Mechanical or Aerospace Engineering from an accredited university or institution, • Minimum of 4 years of experience in space antenna and payload mechanical engineering to include electronics packaging, thermal, shock, vibration, stress dynamics, and cost. A Master's degree may count as two years of experience., • Experience in conducting architectural trade studies including parametric and first-order cost and physical analysis, • Experience with professional mechanical and FEA CAD tools, such as Ansys Mechanical, SolidWorks Simulation, and Thermal Desktop, • Experience with CNC manufacturing and GD&T, • Experience with advanced aerospace manufacturing and materials including sandwich panels and carbon composites, OR experience with high-reliability deployment mechanisms for space applications (including deployment, HDRMs, power delivery, etc.)., • Proficiency in detailed mechanical design (3D CAD, drawings, etc.), • Experience designing and manufacturing mechanisms and mechanical actuators, • Experience with EMI/EMC mitigation techniques, • Familiarity with satellite thermal architectures including heat pipes, phase change materials, contact resistance, and surface finishes as well as fundamental understandings of orbital thermal control in a LEO environment., • Familiarity with launch and LEO environments (thermal, shock, vibe, radiation, etc), • Familiarity with design for test, manufacturability, assembly, and reliability, • Excellent written and verbal communication skills PREFERRED EXPERIENCE, • Python, C++, or other programming languages, • Experience with large, deployable antenna arrays which drive your vision for the next generation of on-orbit communications and sensor arrays., • Robotics and control systems experience

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. We are looking for a Senior Machine Learning Engineer II to contribute to the development and deployment of machine learning solutions for our advanced distributed processing platforms. This role is highly collaborative, working closely with product, backend, and systems engineering teams to design, integrate, and maintain robust ML applications that support CesiumAstro’s mission. JOB DUTIES AND RESPONSIBILITIES • Design, develop, and maintain deep learning pipelines for real-time data processing., • Evaluate and curate relevant datasets; establish model benchmarks to measure performance., • Improve observability and monitoring for deployed ML systems., • Develop, deploy, and maintain microservices that deliver ML capabilities to production systems., • Enhance tooling and orchestration for tuning, deployment, and scaling of ML pipelines., • Collaborate in research and development initiatives, contributing to new ML capabilities for aerospace and defense applications., • Document designs, workflows, and operational best practices to ensure maintainable and resilient ML systems. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s or higher degree in Computer Science, Engineering, or related technical field., • 6+ years of professional experience developing production-ready ML systems in small to medium-sized organizations (additional experience required for larger organizations)., • Proficiency in Python with demonstrated experience implementing ML algorithms in production environments., • Experience designing and maintaining APIs for ML services., • Hands-on experience deploying and managing ML workflows in Kubernetes environments., • Strong communication skills with the ability to clearly articulate complex technical ideas., • Ability to work effectively in a collaborative, Agile engineering team. PREFERRED EXPERIENCE, • Knowledge of microservice architectures and distributed data systems., • Familiarity with aerospace or defense applications of ML systems.

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. We are seeking a Principal DevOps Engineer I for Embedded Software to own and scale the infrastructure that supports our mission critical software development across multiple programs and product lines. In this role, you will advance infrastructure that generates software images, deploys them onto hardware, ensures continuous integration/continuous development, organizes and optimizes Yocto embedded builds, and maintain high-performance, Linux-based build environments. The ideal candidate understands embedded software stacks and the modern tools that accelerate their development.JOB DUTIES AND RESPONSIBILITIES • Ideally deep experience with OpenEmbedded and the Yocto Project., • Understanding of make and cmake., • Understanding of build flows from compilation to image generation., • Facility with GitLab CI/CD pipelines and GitLab Runners that build, test, and deploy embedded software for harware for test., • Ensure CI systems integrate with hardware-in-the-loop test environments for regression and validation., • Deep facility with yaml-based CI configuration., • Facility with Docker virtual build environments and containerization., • Administer and maintain high-performance Linux build machines used for continuous integration, regression testing, and software release packaging., • Monitor system performance, scale compute resources, and maintain uptime for development teams., • Support and automate the software release process for production releases to customers., • Manage build artifacts, versioning, and delivery., • Act as the first line of support for developers encountering build, test, or environment issues., • Collaborate with software teams to improve developer productivity., • Assist in maintenance and utilization of company could-based AI productivity environmentJOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree in Computer Science, Electrical/Computer Engineering, or related field (or equivalent experience)., • Minimum of 9 years of relevant experience., • Proven facility with CI/CD tools (e.g., GitLab CI, Jenkins, or similar)., • Proficiency in Linux system administration, including performance tuning and troubleshooting., • Familiarity with Yocto or other embedded Linux build frameworks., • Experience with build automation tools (CMake, Make, BitBake, etc.)., • Strong scripting skills (Python, Bash, or similar)., • Excellent problem-solving skills and ability to work collaboratively with developers., • Knowledge of networking and distributed systems., • Experience with containerization (Docker, Podman) and virtualization (KVM, VMWare)., • Knowledge of networking and distributed systems., • Familiarity with hardware-in-the-loop (HIL) testing environments.PREFERRED EXPERIENCE

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. We are looking to add a Senior Program Manager to our team. If you enjoy working in a startup environment and managing multiple fast paced projects at once, we would like to hear from you. In this position, you will be responsible for program performance and day-to-day execution for a large customer subsystem or a small to medium sized payload, including concept development, implementation, production, modification, integration and test, and delivery. You will be the single point of contact for customer interactions including program management reviews, customer bi-weekly reviews, and major program reviews. This position is expected to be able to manage multiple customers. This position works collaboratively with all functional organizations at CesiumAstro to ensure the success of the program using risk -bsaed decision making in guiding decisions to meet program objectives. A successful candidate understands how to effectively use program and engineering metrics to make data driven decisions. You will serve as the primary program leader for all activities, with responsibilities for cost, schedule, and adherence to technical performance requirements. The Senior Program Manager will establish program management baselines (integrated master plans and resource loaded schedules) to task the team, measures program performance, and monitors progress to generate latest revised estimates and estimates to completion. The Senior Program Manager will provide these inputs to customers, CesiumAstro leadership, and internal finance teams for revenue recognition. This position will assist the Director of Programs in improving standard processes, and implementing best practices for consistency across the Space Payloads portfolio of programs. As a senior member of the program team, you may help in hiring and mentorship of program engineers. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Minimum of 12-15 years of Program Management or Subcontract Management Experience., • Bachelor of Science (BS) or Master of Science (MS) degree in a relevant engineering field (Electrical Engineering, Mechanical Engineering, Systems Engineering, etc.) from an accredited university or institution., • Experience in the aerospace industry as a system or design engineer., • Develop and coordinate program requirements across product lines and with multiple subcontractors, • Familiarity with RF, communication, or satellite systems., • Experience managing cross functional and decentralized teams., • Relevant CAM, risk management, EVMS, and risk based assessment experience., • Experience developing work break down structures, integrated master plans, and integrated master schedules., • Experience managing programs with dynamic and multi-project interdependencies., • Return-To-Green experience on one or more programs., • Experience in NRE development programs., • Excellent organizational skills., • Excellent written and verbal communication skills., • Must be able to work in a highly collaborative, fast-paced environment, • Experience working with government/military customers.PREFERRED EXPERIENCE, • Experience working with proliferated architectures, • Experience in DoD Acquisition Process.

Job DescriptionCompany Description Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless pursuit of innovation. We leverage the latest advancements in cloud computing, artificial intelligence, and software-defined networking to provide our clients with a competitive edge in an increasingly interconnected world. Our solutions are designed to not only meet the current demands of the digital landscape but to also anticipate and adapt to future challenges. At Arista we value the diversity of thought and perspectives that each employee brings to the table. We believe that fostering an inclusive environment, where individuals from various backgrounds and experiences feel welcome, is essential for driving creativity and innovation. Our commitment to excellence has earned us several prestigious awards, such as Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. At Arista, we take pride in our track record of success and strive to maintain the highest standards of quality and performance in everything we do. Job Description Who You’ll Work With As a Resident Engineer, you will be a critical technical partner embedded within our most strategic account(s). Your role sits at the intersection of innovation and execution, collaborating with: • Elite Customer(s): You will partner directly with Arista’s key customers to design, build, and manage some of the world's most advanced large-scale AI data centers., • The Arista Account Team: You will work hand-in-hand with our sales and account leadership to nurture the overall customer relationship and align technical strategy with business goals., • Arista TAC & Engineering: You will act as a bridge between customer and Arista’s core Technical Assistance Center (TAC) and Engineering teams, collaborating to debug complex issues and develop high-impact solutions for the customer. As a Resident Engineer, you will serve as the technical contact for Arista’s deployments within the customer environment, spanning from high-level design to hands-on operational excellence. Your responsibilities include: Strategic Technical Leadership • Design & Architecture: Maintain and update High-Level (HLD) and Low-Level Designs (LLD). Create "As-Built" documentation and Delta Design plans for incremental network expansions., • Network Audits: Conduct regular configuration and network health reviews to ensure compliance with customer's and Arista best practices., • Infrastructure Management: Manage the upgrade and hardening of the Arista Fabric, including CloudVision (CVP/CVaaS)., • Automation & Integration: Develop and support automation solutions using Arista python based APIs to streamline network operations., • Change Management: Author Methods of Procedure (MoP), oversee complex change windows, and perform rigorous pre- and post-activity health checks., • Incident Resolution: Lead advanced troubleshooting for hardware/software issues and act as the primary liaison for customer with the Arista Technical Assistance Center (TAC) to ensure rapid resolution of P1 and escalated cases., • Proactive Maintenance: Perform routine bug scrubs, impact analyses, and vulnerability assessments to create actionable patching and update plans., • Proof of Concepts (PoC): Partner with Arista SEs to plan and execute PoCs, demonstrating new features and modules to the customer., • SLA Compliance: Ensure all customer operations meet agreed-upon SLAs and timelines as defined in the customer's Statement of Work (SoW)., • Capability Building: Mentor new hires and conduct internal training sessions to ensure the team is proficient in the latest Arista features and fabric deployments., • Continuous Learning: Participate in advanced technical sessions hosted by Arista Professional Services, TAC and Engineering to maintain subject matter expertise.Qualifications, • BS/MS with 7+ years of experience in the relevant field, • Network Certification a plus, • ACE L3 or above level certification would be an advantage #LI-SP1 Additional Information Arista Networks is an equal opportunity employer. Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or law law. All your information will be kept confidential according to EEO guidelines.

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. We are looking to add a Senior FPGA Engineer II - Network to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you. In this position, you will be responsible for FPGA designs and systems through all phases of the development process. The ideal candidate will have experience in FPGA design, verification, test, and deployment at the HDL level. FPGA HDL designs will include high-speed serial interfaces and data streams, digital processing cores, multiple clocks and clock domains, and management interfaces. Testing, validation, and verification will also be central tasks for any FPGA design. Experience in board-level hardware design is also desirable. The successful candidate will present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Bachelor of Science (BS) or Master of Science (MS) degree in Electrical Engineering or Computer Engineering from an accredited university or institution., • Minimum of 6 years of industry or university research experience in the design, analysis, and implementation of FPGA systems., • Production experience in design, implementation, and integration of OSI Layers 2 and 3 networking systems, including protocols such as Ethernet, IP, and MPLS., • Experience in networking system design, especially in determining throughput and memory requirements., • Expertise in writing and reviewing VHDL., • Proficiency in writing and reviewing SystemVerilog for block and system verification., • Expertise in FPGA design and verification tools for modern complex FPGA and SoC platforms such as Xilinx Vivado and Siemens Questa., • Excellent written and verbal communication skills.PREFERRED EXPERIENCE, • Deep understanding of network design and an ability to derive requirements based on high-level objectives., • Familiarity with non-FPGA networking platforms including ASICs and general-purpose processors., • Aerospace design and qualification., • Worst-case analysis, failure method and criticality analyses, and reliability analysis., • Experience with board-level hardware design., • Familiarity with communications systems, such as digital signal processing.

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. We are seeking a highly skilled and experienced Principal Embedded Software Engineer II to join our software team. In this position, you will be responsible for low-level and high-level software in Cesium’s products through all phases of the development process. Key projects will include Linux-based single-board computers and high-reliability microcontroller systems. Cesium’s goal is to create an out-of-the-box hardware and software experience which enhances our customers’ ability to rapidly integrate our products into their systems. As a Cesium software team member, you will be responsible for software designs from concept through production, including product roadmaps, block diagrams, detailed design and coding, analysis, test, qualification, and in-orbit support. The ideal candidate will have development experience at nearly every level of the software stack, including microcontrollers, low-level drivers, board support packages (BSP), end-use applications, and user interfaces. Additionally, the ideal candidate will have experience in software testing and high-reliability qualification, as well as software engineering and software project management practices. The successful candidate will present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.JOB DUTIES AND RESPONSIBILITIES • Design and implement software for embedded devices and systems, from requirements to production and commercial deployment., • Design, develop, code, test, debug and document system software., • Review code and system designs., • Analyze code for efficiency, stability and scalability., • Integrate and validate new product designs., • Support software quality assurance and optimize I/O performance., • Provide post-production/in-orbit customer support., • Interface with hardware design and development engineers., • Assess third party and open source software.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor of Science (BS) or Master of Science (MS) degree in Computer Science, Electrical Engineering, or Computer Engineering., • Minimum of 11 years of industry experience in software development., • Experience in hands-on development and troubleshooting of embedded hardware. API design for interfacing with FPGAs., • Extensive programming experience in C and an object oriented programming language, preferably C++., • Experience in embedded systems design with preemptive, multitasking real-time operating systems (experience with real-time Linux is desirable)., • Familiarity with software configuration management tools, defect tracking tools, and peer review., • Excellent knowledge of real-time system coding techniques, IP protocols, interfaces, and hardware subsystems., • Excellent understanding of multi-threaded applications and resource management., • Excellent written and verbal communication skills.PREFERRED EXPERIENCE, • Experience with products for aerospace applications., • Adequate knowledge of reading electronics schematics and component data sheets., • Experience with ARM processors and fully-featured microcontrollers.

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. We are seeking an Engineering Manager, Digital & Mixed-Signal Hardware to lead and coordinate our high-speed digital electronics teams across multiple sites and product lines. This leadership role is critical to ensuring architectural consistency and high-quality execution across a diverse portfolio of software-defined radios, space computing platforms, and phased array control systems. This position is a highly technical leadership role responsible for delivering well-engineered digital and mixed-signal hardware—on schedule—across all product lines. The role provides technical ownership for board- and system-level high-speed digital designs while leading team execution, staffing, and engineering process maturity in a fast-growing aerospace and defense startup environment. In addition to people and process leadership, this role contributes hands-on technical expertise to critical designs, architecture reviews, and complex debug activities, ensuring products are scalable, manufacturable, testable, and robust at production volumes. JOB DUTIES AND RESPONSIBILITIES • Maintain technical integrity and engineering excellence for high-speed digital and mixed-signal electronics development across the company., • Establish, mature, scale, and enforce engineer-friendly digital hardware development processes, including high-speed interface design guidelines, signal integrity simulation workflows, and schematic and layout standards for dense, high-layer-count PCBs, • Lead and participate in rigorous architecture and design reviews, ensuring appropriate subject matter expert (SME) engagement across digital, RF, power, firmware, and mechanical disciplines., • Provide system-level technical leadership for software-defined radio and computing units and phased array control architectures., • Apply strong working knowledge of adjacent disciplines—RF electronics, power electronics, thermal/mechanical engineering, firmware/software—to ensure board- and system-level success., • Contribute directly to board-level digital and mixed-signal designs as needed, particularly in high-risk or schedule-critical programs., • Lead or support complex debug efforts involving high-speed interfaces, large FPGA and processor implementations, and related technical topics., • Ensure digital hardware designs are buildable and testable at scale using DFM and DFT best practices., • Drive disciplined handoff from engineering to manufacturing through close collaboration with manufacturing engineering, supply chain, and production test engineering., • Ensure designs meet quality, reliability, and scalability requirements for aerospace and defense production environments., • Lead digital architecture decisions aligned with product performance and long-term technology roadmaps., • Partner with Supply Chain to ensure component availability, lifecycle risk mitigation, and cost awareness., • Drive design reuse, modular architectures, and platform commonality across products to accelerate execution and reduce risk. TEAM LEADERSHIP, STAFFING & PERFORMANCE RESPONSIBILITIES, • Build, scale, and lead a high-performing digital and mixed-signal hardware engineering team., • Advocate for realistic schedules while holding the team accountable to delivery commitments., • Lead hiring activities, including writing job descriptions, conducting interviews, and making hire/no-hire decisions., • Establish clear development paths and growth opportunities for high-performing engineers., • Address performance issues promptly and constructively., • Actively close skill gaps through hands-on contribution, training initiatives, or targeted hiring., • Provide one-on-one coaching, mentoring, and deep technical guidance., • Serve as a key contributor to early-stage engineering execution planning, including collaboration with Business Development and Systems Engineering., • Plan and manage budgets related to staffing, lab equipment, capital equipment, and design/simulation software., • Maintain strong working relationships across Engineering, Quality, and Operations. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s degree or higher in Electrical Engineering or Computer Engineering required., • Minimum of 7–9 years of progressive digital or mixed-signal hardware engineering experience, preferably in aerospace environments, including 1–3 years of leadership or engineering management experience preferred., • Demonstrated deep expertise in high-speed digital and mixed-signal board design., • Software-defined radio experience preferred., • Strong understanding of signal integrity (SI) and timing., • Experience supporting design for manufacturability (DFM), design for test (DFT), and transition from development to production., • Proven ability to conduct rigorous technical reviews, mentor engineers, and communicate effectively across disciplines., • Ability to balance architectural rigor with execution speed in a fast-paced development environment., • Proficiency with high-speed simulation and analysis tools such as Ansys SiWave or ADS SiPro., • Hands-on experience with schematic capture and PCB layout tools such as Altium., • Familiarity with product lifecycle management (PLM) systems required., • Familiarity with FPGA toolchains (e.g. Xilinx Vivado) preferred.

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. We are looking to add a Senior FPGA Engineer II to our team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing leading-edge hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you. In this position, you will be responsible for FPGA circuits and systems through all phases of the development process. The ideal candidate will have experience in FPGA design, verification, test, and deployment at the HDL level. FPGA HDL designs will include high-speed serial interfaces and data streams, digital processing cores, multiple clocks and clock domains, and management interfaces. Testing, validation, and verification will also be central tasks for any FPGA design. Experience in digital signal processing or board-level hardware design is also desirable. The successful candidate will present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS • Bachelor of Science (BS) or Master of Science (MS) degree in Electrical Engineering or Computer Engineering from an accredited university or institution., • Minimum of 6 years of industry or university research experience in the design, analysis, and implementation of FPGA systems at the HDL level., • Expertise in FPGA design and verification (Verilog/VHDL, HDL coder, Xilinx’s Vivado, Modelsim, etc.)., • Hands-on experience with lab instruments such as digital oscilloscopes, spectrum analyzers, RF signal generators, and vector signal analyzers., • Excellent written and verbal communication skills.PREFERRED EXPERIENCE, • Aerospace design and qualification., • Worst-case analysis, failure method and criticality analyses, and reliability analysis., • Experience with board-level hardware design.

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. We are looking for a Senior Software Engineer II to design and build orchestration systems that enable CesiumAstro’s advanced machine learning pipelines. In this role, you will collaborate with machine learning, product, and frontend teams to create reliable, scalable, and maintainable backend services that support mission-critical aerospace and defense applications. JOB DUTIES AND RESPONSIBILITIES • Design, develop, and maintain orchestration pipelines supporting machine learning workflows., • Improve observability and monitoring of ML pipelines to ensure health and reliability., • Build tooling to validate and verify pipeline outputs., • Contribute to the next generation of distributed orchestration systems., • Manage project priorities, deadlines, and deliverables in coordination with product stakeholders., • Provide technical guidance to teammates on backend best practices and system reliability., • Document workflows, architecture, and operational procedures. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s or higher degree in Computer Science, Engineering, or related technical field., • 6+ years of professional experience developing backend systems in small to medium-sized organizations (additional years expected for larger organizations)., • Strong proficiency in Python with hands-on experience developing backend systems., • Experience with databases such as PostgreSQL and Redis., • Familiarity with distributed systems design and implementation., • Strong communication skills with the ability to work in a collaborative engineering environment. PREFERRED EXPERIENCE, • Experience supporting machine learning or ETL pipelines., • Familiarity with containerized/cloud-native environments (Docker, Kubernetes)., • Experience with automated testing frameworks for backend or ML pipelines., • Exposure to aerospace, defense, or mission-critical environments.

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. We are looking for a Senior Software Engineer to lead the design and development of user-facing applications that power CesiumAstro’s mission-critical platforms. This role will translate complex requirements into elegant, functional, and scalable UIs, working closely with backend, DevOps, and machine learning teams to deliver robust, high-performance systems. JOB DUTIES AND RESPONSIBILITIES • Build and maintain user-facing features for CesiumAstro’s web-based dashboards and applications., • Collaborate with backend, DevOps, and machine learning engineers to integrate complex data and workflows into intuitive frontends., • Partner with product and business stakeholders to translate user needs into functional UI solutions., • Contribute to reusable component libraries to ensure consistent aesthetics and behavior across applications., • Participate in QA, testing, and release cycles to ensure high-quality, reliable software., • Provide technical leadership in frontend development, mentoring team members and influencing design decisions. JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS, • Bachelor’s or higher degree in Computer Science, Engineering, or related technical field., • 6+ years of professional experience building web application frontends., • Proven track record of leading or independently delivering frontend features in production systems., • Strong proficiency in JavaScript and TypeScript., • Deep experience with modern frontend frameworks, particularly Vue.js, and tools such as Axios., • Excellent communication skills with the ability to articulate design and technical choices. PREFERRED EXPERIENCE, • Experience developing tools that visualize and communicate complex quantitative information., • Backend development experience, ideally with Python APIs., • Familiarity with DevOps and deploying web applications using infrastructure-as-code (e.g., Terraform)., • Experience integrating complex APIs (e.g., Elasticsearch).

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DoorDash is the #1 category leader in food delivery, food pickup, and convenience store delivery in the US, trusted by millions of customers every day.As a Dasher, you’ll stay busy with a variety of earnings opportunities and can work when it works for you.Whether you’re looking for a side hustl

A career at Whole Foods Market is more than just the work you do- it's about your personal growth and creating meaningful change.Our purpose is to nourish people and the planet.That means improving how people eat, funding grants for school gardens, providing access to fresh and healthy food to peopl

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DoorDash is the #1 category leader in food delivery, food pickup, and convenience store delivery in the US, trusted by millions of customers every day.As a Dasher, you’ll stay busy with a variety of earnings opportunities and can work when it works for you.Whether you’re looking for a side hustl

A career at Whole Foods Market is more than just the work you do- it's about your personal growth and creating meaningful change.Our purpose is to nourish people and the planet.That means improving how people eat, funding grants for school gardens, providing access to fresh and healthy food to peopl

DoorDash is the #1 category leader in food delivery, food pickup, and convenience store delivery in the US, trusted by millions of customers every day.As a Dasher, you’ll stay busy with a variety of earnings opportunities and can work when it works for you.Whether you’re looking for a side hustl

A career at Whole Foods Market is more than just the work you do- it's about your personal growth and creating meaningful change.Our purpose is to nourish people and the planet.That means improving how people eat, funding grants for school gardens, providing access to fresh and healthy food to peopl

DoorDash is the #1 category leader in food delivery, food pickup, and convenience store delivery in the US, trusted by millions of customers every day.As a Dasher, you’ll stay busy with a variety of earnings opportunities and can work when it works for you.Whether you’re looking for a side hustl