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Description This is not a maintenance role. This is a reinvention role located in Huntsville, AL. We are looking for a Principal Software Engineer who doesn’t just build systems—but reshapes how they are conceived, delivered, and trusted. Someone who pairs deep technical credibility with architectural vision, and who has the conviction to challenge legacy approaches when the mission demands more. In this role, you will be a technical provocateur and lead engineer, driving the design and delivery of AI-enabled, agentic, and intelligent software platforms that dramatically accelerate modernization and outcomes. You’ll operate at the highest altitude—setting technical direction, evaluating emerging technologies, and prototyping what’s next—while still diving deep to turn ideas into production-grade reality. This is a role for builders who bias toward action, who believe disruption can coexist with rigor, and who want to apply cutting-edge AI to the problems that matter most. Why This Role Matters We are here to radically remake software systems that underpin the country’s most critical missions—aviation, healthcare, energy, and other safety-critical domains where failure is not an option. We are bringing agentic AI transformation not to trivial demos or disposable apps, but to the hardest, highest-stakes systems: Systems with extreme safety, security, and resilience requirements Systems constrained by regulation, legacy architecture, and operational risk Systems where speed to outcome must increase without compromising trust Our ambition is simple and audacious: move faster than ever before, while raising the bar on safety and reliability. Key Responsibilities Technical Leadership & Architecture Provide Thought leadership in the future opportunities in AI and agentic-enabled tools, capabilities, and challenges Serve as the architectural lead for AI- and agentic-enabled tooling, establishing patterns, reference implementations, and best practices. Design scalable, secure, and resilient software systems that integrate LLMs, multi-agent workflows, code intelligence, and automation. Own and drive the technical roadmap for next-generation software acceleration tools—including IDE extensions, code-analysis agents, refactoring engines, and developer-assistive AI. Lead architecture reviews, evaluate new technologies, and set engineering standards for AI safety, quality, reliability, and observability. Hands-On Engineering Build high-quality software with modern languages and frameworks (e.g., Python, TypeScript, Go, Java). Develop pipelines and services that enable AI reasoning, code analysis, static/dynamic analysis, and automated transformation of legacy systems. Prototype early concepts rapidly and transition successful prototypes into robust, production systems. Integrate AI/ML models (commercial, open-source, or custom) into enterprise environments and developer workflows. AI & Agentic Systems Development Design and build agentic orchestration, tool-use interfaces, embeddings systems, context windows, and retrieval-augmented workflows. Implement “human-in-the-loop” safety and review patterns. Develop mechanisms for grounding, guardrailing, and evaluating AI performance and correctness. Leverage AI to analyze, modernize, and refactor large, complex codebases (e.g., Java, .NET, COBOL, C++). Collaboration & Influence Partner with product, UX, and platform teams to define features, user journeys, and developer experience goals. Act as a technical mentor to senior and mid-level engineers; cultivate a culture of excellence and continuous learning. Collaborate closely with research, data, and cybersecurity teams to ensure solutions are safe, secure, and aligned with mission needs. Represent the engineering team in internal and external forums, contributing to thought leadership in AI and software engineering modernization. Required Qualifications Bachelor's degree and 8+ years experience in software engineering, including significant experience at the senior/architect level. Additional experience may be considered in lieu of a degree. Expertise in designing and building distributed systems, developer tools, or platform engineering products. Hands-on experience implementing AI/ML systems or integrating large language models into production workflows. Strong knowledge of agentic frameworks, orchestration tools, RAG, vector databases, API design, and microservices. Deep understanding of software design patterns, CI/CD, DevSecOps, and cloud-native architectures (AWS/Azure/GCP). Strong coding proficiency in at least two modern languages (Python, Go, Java, C#, etc.). Ability to drive technical strategy, influence cross-functional teams, and communicate complex ideas clearly. Must be authorized to work in the U.S. Ability to obtain and maintain a Secret security clearance. Preferred Qualifications Experience modernizing legacy systems (e.g., mainframe, Java monoliths, .NET). Background building developer experience (DevX) tools, IDE integrations, or code-intelligence systems. Experience with AI/ML model fine-tuning, prompt engineering, or evaluation frameworks. Familiarity with cybersecurity, secure-by-design principles, or government/missions systems Prior role as a thought leader, principal engineer, architect, or technical founder. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. March 10, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Description The Kinetic Effects Business Area in the Leidos Defense Sector currently has a special job opening for a talented Flight and Mission Software Development Lead to work onsite in our Huntsville, AL office. This is an exciting and unusual opportunity to use your knowledge, skills, experience, and insight to launch the next phase of your career at Leidos by leading a talented software team through the software development life cycle (SDLC) to produce solutions for the nation’s leading advanced defense technologies such as manned aircraft software, tactical strike systems, sensors, computer vision, uncrewed air systems (UAS), counter UAS, mission planning, command/control/communications (C3), platform autonomy, network collaborative autonomy, aerial refueling, and flight management systems. Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. With offices across the United States engaging in the defense, space, cyber and commercial fields, Leidos provides responsive, cost-effective engineering, scientific and IT solutions. Leidos is well known for our people-oriented culture, positive work environment, technical excellence, and resilient business ethics. Primary Responsibilities. • This leadership position is dynamic, requiring assertiveness, strong technical competence, flexibility, impeccable prioritization abilities, personal drive and energy, and self-discipline. Working in this position, your workday will span jobs such as leading a Software Integrated Product Team (IPT), working across technical functions on cohesive integrated solutions on complex integrated systems, providing software program management, working closely with software and computing hardware architects, overseeing software systems engineers and lead software test engineers, and serving as Agile Product Owner., • Product development will span the technology stack from high-level user applications to mission software to low-level embedded solutions to the computing hardware. Hardware may span front end tablets and laptops, rugged mission computers, high-performance servers, single-board computers (SBC), systems-on-chip (SoC), systems-on-module (SoM), custom printed circuit board assemblies (PCBA), and microcontrollers (MCU). Software capabilities span criticality levels and perform functions such as mission execution, power and thermal monitoring, sensors and instrumentation, telemetry, command and control, communications, networks, mission planning, and system infrastructures., • This position will involve regular and direct contributions to proposals. This includes devising technical solutions, determining the approach to execution, schedule planning, software size and cost estimation, developing basis of estimates, team sizing, skills and staff planning, computer hardware and software requirements elicitation and analysis, and materiel planning., • Direct communication with customers, end users, internal stakeholders, and team members will be required on a frequent basis., • In this position you will enjoy significant influence on positive outcomes and a strong sense of purpose working directly on fieldable systems that are key to the nation’s defense. Basic Qualifications. • A Bachelor's Degree or higher degree in Software Engineering, Computer Engineering, Computer Science, Management Information Systems, Computer Information Systems, Electrical Engineering, Aeronautical Engineering, Aerospace Engineering, Mathematics, Physics, or a related technical field is required., • Candidate should have 12+ years of relevant technical experience., • Candidate should have 3+ years or relevant experience leading teams and managing resources for software development., • Excellent communication (verbal and written) and team leadership skills., • Candidate must demonstrate their ability to work independently, collaborate closely with team members, discern efficient roles and tasks for their team members, think critically, act confidently and judiciously, exercise impeccable judgement, consistently make rational decisions, and impart a productive sense of urgency to others., • Experience in development of software products or simulations using C, C++, Rust, C#, or Java is required. Candidate must articulate strong competency in development in at least one of these programming languages, object-oriented design principles, and troubleshooting., • Experience working on one or more final products that went beyond prototypes, demonstrations, test beds, or internal/lab use only. The candidate’s prior experience must exist on software products, integrated systems, or simulations that were released and fielded as either a product itself, used operationally on an integrated system, or released and used independently by individuals other than those who developed it., • Proficient with efficient use of peer reviews and evaluations of software development plans, specifications, requirements management, architectures, designs, source code, unit tests, verification plans and procedures., • Familiar with practices associated with successful software supplier or subcontractor management, and basic contract requirements methodology (e.g., SOWs, SLAs, and CDRLs)., • Fundamental and working knowledge of software configuration management, code repositories and build system components, such as DevSecOps, CI/CD pipelines, CMake, GitLab, Docker, and virtualization tools (e.g., VMWare, QEMU, VirtualBox, Hyper-V)., • Fundamental and working knowledge of general-purpose operating systems (Linux, UNIX, and/or Windows) and practical knowledge of their respective development tools/IDEs, scripts, debuggers, and administrative features., • Understanding of the software development life cycle, its phases, life cycle models, metrics or performance indicators, and techniques for rapid development while ensuring high-quality solutions and on-time results., • Able to multi-task and willing to work with teammates to contribute directly to industry events, white papers and competitive proposals., • Basic understanding of software engineering process and the appropriateness of its use, application, and proper methods of tailoring., • Basic understanding of systems engineering principles and practices relevant to software. Clearance Qualification. • Candidate must be a U.S. Citizen with the ability to obtain and maintain a Secret Security Clearance (interim and final). Preferred Experience, Skills or Abilities. • Software Development: Experience with planning, specification, design, development, integration, installation/deployment, and maintenance of software for airborne systems, mission planning systems, missile/weapon platforms, uncrewed or autonomous systems, and/or ground control/support systems., • User Experience Programming Languages: Basic knowledge in one or more programming languages used in applications and front-end software, such as Python, .NET/C#, Java, C++, Qt, Swift/Objective-C, and XML., • Agile Development: Experience with SAFe as Product Owner, Scrum Master, or Developer performing software product development using Agile development methodologies within one or more Agile tools such as Atlassian Jira, Trello, Monday.com., • Agentic AI: Experience using and influencing the adoption of tools like Anthropic’s Claude Code, OpenAI’s Codex or other coding agents to improve efficiency and productivity., • Problem-Solving: Ability to comprehend changes, characterize impact and assess risk to plans or existing solutions, estimate their level of effort and resources, describe (written and verbal) courses of action (COA) or decision analysis, and facilitate team consensus., • Collaboration: Work responsibly, reliably and independently in a fast-paced, open, collaborative cross-functional cross-organizational environment without direct oversight., • Transparency: Elicit, accept, and provide constructive informal feedback amongst other team members to uphold technical excellence and quality workmanship. Other Qualifications • Rapid Flight Systems Development. Experience with Agile/Scrum, unmanned aircraft or robotics, embedded development, design and implementation of operational flight software, digital communications, real-time development, and software safety., • Qualification Testing. Knowledge of various development tools for software qualification testing, requirements management, build and release, unit testing, regression testing, configuration management, and issue tracking are beneficial., • Mission Support: Devise new concepts for computing infrastructure and automation to support ground test facilities, integration labs, data collection and analysis, autonomous logistics, and operator training. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. March 27, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Description The Defense Sector at Leidos is currently seeking a Junior Software Engineer with 2+ years of professional experience to join a collaborative, product-focused engineering team. In this role, you will contribute to the design, development, testing, and delivery of software products written primarily in Java, Rust and JavaScript. You will work within an Agile development environment, partnering closely with other engineers, product managers, and stakeholders to deliver high-quality software that meets user needs. This position does allow the ability to telework, but the chosen candidate must be within a reasonable driving distance to one of the following four locations - Morgantown WV, Orlando, FL Omaha NE, or Huntsville AL. Weekly on-site work at one of these four locations is required. Primary Responsibilities: • Design, develop, and maintain software components and services using Java, Rust, and JavaScript, • Build and enhance user-facing features using React, • Collaborate with a cross-functional Agile team using Jira for planning, tracking, and execution, • Contribute to continuous delivery pipelines with a strong emphasis on automated testing, • Write and maintain unit, integration, and system tests to ensure software quality and reliability for backend and frontend systems, • Leverage generative AI tools to assist with development, testing, documentation, and problem-solving where appropriate, • Participate in code reviews, design discussions, and sprint ceremonies, • Work closely with product and user-facing teams to incorporate feedback and improve functionality and usability, • Support ongoing improvements to development practices, tooling, and processes Basic Qualifications: • US Citizen with the ability to obtain and maintain a Top Secret clearance with 365 days from the start of your employment with Leidos., • Bachelor's degree in a relevant field and 2+ years of professional software development experience or a Master’s degree with 1+ years of experience. Additional experience may be considered in lieu of a degree, • Proficiency in Java, Rust, and/or JavaScript, with willingness to work across both languages, • Experience working in Agile/Scrum environments, • Familiarity with Jira or similar Agile project management tools, • Experience with automated testing frameworks and test-driven or test-focused development practices, • Strong problem-solving skills and attention to detail, • Ability to work effectively as part of a larger engineering team Preferred Qualifications: • US Citizen with an active Top Secret clearance., • Experience with CI/CD pipelines and continuous delivery practices, • Exposure to cloud-based or distributed systems, • Experience using or experimenting with AI-assisted development tools, • Understanding of software usability and user-centered design principles What We Offer • Opportunity to work on impactful software products delivered continuously to users, • A collaborative team environment that values learning, feedback, and improvement, • Support for modern development practices, automation, and emerging tools For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $69,550.00 - $125,725.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. #Featuredjob

Description The Defense Sector at Leidos is currently seeking a Software Engineer with 4+ years of professional experience to join a collaborative, product-focused engineering team. In this role, you will contribute to the design, development, testing, and delivery of software products written primarily in Java, Rust and JavaScript, while playing a key role in guiding Agile scrum teams and driving technical solutions from concept through delivery. You will work closely with product management, UX, and other engineering leaders to deliver high-quality, user-focused software through continuous delivery, with a strong emphasis on automated testing, feedback, and iterative improvement. This position does allow the ability to telework, but the chosen candidate must be within a reasonable driving distance to one of the following four locations - Morgantown WV, Orlando, FL Omaha NE, or Huntsville AL. Weekly on-site work at one of these four locations is required. Primary Responsibilities: • Design, development, and maintenance of software solutions using Java, Rust, JavaScript, and React, • Drive end-to-end technical solutions, including architecture, implementation, testing, and deployment, • Partner with product owners and stakeholders to translate requirements into scalable, maintainable designs, • Build and enhance user-facing features using React, as well as backend services and APIs, • Champion automated testing, code quality, and continuous integration/continuous delivery (CI/CD) practices, • Leverage generative AI tools to improve developer productivity, testing, and documentation where appropriate, • Lead code reviews, mentor engineers, and promote best practices across the team, • Facilitate or actively contribute to Agile ceremonies using Jira (sprint planning, stand-ups, retrospectives), • Incorporate user and stakeholder feedback to improve software functionality, usability, and performance, • Identify technical risks and drive solutions that balance speed, quality, and maintainability Basic Qualifications: * US Citizen with the ability to obtain and maintain a Top Secret clearance with 365 days from the start of your employment with Leidos. • Bachelor's degree in a relevant field and 4+ years of professional software development experience or a Master’s degree with 2+ years of experience. Additional experience may be considered in lieu of a degree, • Strong experience with Java, Rust, JavaScript, and React, or deep expertise in several with the ability to lead across the full stack, • Demonstrated experience working in Agile/Scrum environments and leading or guiding scrum teams, • Experience driving technical solutions and making architecture or design decisions, • Proficiency with Jira or similar Agile project management tools, • Strong background in automated testing (unit, integration, and/or end-to-end), • Excellent communication skills and the ability to collaborate across disciplines, • Self-motivated desire to learn new programming languages, tools, frameworks, and techniques Preferred Qualifications: * US Citizen with an active Top Secret clearance. • Experience with CI/CD pipelines and continuous delivery practices, • Familiarity with frontend testing frameworks (e.g., Jest, React Testing Library, Cypress), • Experience building cloud-based or distributed systems, • Experience using AI-assisted development tools in production environments, • Understanding of usability, accessibility, and user-centered design principles What We Offer • Opportunity to work on impactful software products delivered continuously to users, • A collaborative team environment that values learning, feedback, and improvement, • Support for modern development practices, automation, and emerging tools For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $87,100.00 - $157,450.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. #Featuredjob

Description This is not a maintenance role. This is a reinvention role located in Huntsville, AL. We are looking for a Principal Software Engineer who doesn’t just build systems—but reshapes how they are conceived, delivered, and trusted. Someone who pairs deep technical credibility with architectural vision, and who has the conviction to challenge legacy approaches when the mission demands more. In this role, you will be a technical provocateur and lead engineer, driving the design and delivery of AI-enabled, agentic, and intelligent software platforms that dramatically accelerate modernization and outcomes. You’ll operate at the highest altitude—setting technical direction, evaluating emerging technologies, and prototyping what’s next—while still diving deep to turn ideas into production-grade reality. This is a role for builders who bias toward action, who believe disruption can coexist with rigor, and who want to apply cutting-edge AI to the problems that matter most. Why This Role Matters We are here to radically remake software systems that underpin the country’s most critical missions—aviation, healthcare, energy, and other safety-critical domains where failure is not an option. We are bringing agentic AI transformation not to trivial demos or disposable apps, but to the hardest, highest-stakes systems: Systems with extreme safety, security, and resilience requirements Systems constrained by regulation, legacy architecture, and operational risk Systems where speed to outcome must increase without compromising trust Our ambition is simple and audacious: move faster than ever before, while raising the bar on safety and reliability. Key Responsibilities Technical Leadership & Architecture Provide Thought leadership in the future opportunities in AI and agentic-enabled tools, capabilities, and challenges Serve as the architectural lead for AI- and agentic-enabled tooling, establishing patterns, reference implementations, and best practices. Design scalable, secure, and resilient software systems that integrate LLMs, multi-agent workflows, code intelligence, and automation. Own and drive the technical roadmap for next-generation software acceleration tools—including IDE extensions, code-analysis agents, refactoring engines, and developer-assistive AI. Lead architecture reviews, evaluate new technologies, and set engineering standards for AI safety, quality, reliability, and observability. Hands-On Engineering Build high-quality software with modern languages and frameworks (e.g., Python, TypeScript, Go, Java). Develop pipelines and services that enable AI reasoning, code analysis, static/dynamic analysis, and automated transformation of legacy systems. Prototype early concepts rapidly and transition successful prototypes into robust, production systems. Integrate AI/ML models (commercial, open-source, or custom) into enterprise environments and developer workflows. AI & Agentic Systems Development Design and build agentic orchestration, tool-use interfaces, embeddings systems, context windows, and retrieval-augmented workflows. Implement “human-in-the-loop” safety and review patterns. Develop mechanisms for grounding, guardrailing, and evaluating AI performance and correctness. Leverage AI to analyze, modernize, and refactor large, complex codebases (e.g., Java, .NET, COBOL, C++). Collaboration & Influence Partner with product, UX, and platform teams to define features, user journeys, and developer experience goals. Act as a technical mentor to senior and mid-level engineers; cultivate a culture of excellence and continuous learning. Collaborate closely with research, data, and cybersecurity teams to ensure solutions are safe, secure, and aligned with mission needs. Represent the engineering team in internal and external forums, contributing to thought leadership in AI and software engineering modernization. Required Qualifications Bachelor's degree and 2+ years experience in software engineering, including significant experience at the senior/architect level. Additional experience may be considered in lieu of a degree. Expertise in designing and building distributed systems, developer tools, or platform engineering products. Hands-on experience implementing AI/ML systems or integrating large language models into production workflows. Strong knowledge of agentic frameworks, orchestration tools, RAG, vector databases, API design, and microservices. Deep understanding of software design patterns, CI/CD, DevSecOps, and cloud-native architectures (AWS/Azure/GCP). Strong coding proficiency in at least two modern languages (Python, Go, Java, C#, etc.). Ability to drive technical strategy, influence cross-functional teams, and communicate complex ideas clearly. Must be authorized to work in the U.S. Ability to obtain and maintain a Secret security clearance. Preferred Qualifications Experience modernizing legacy systems (e.g., mainframe, Java monoliths, .NET). Background building developer experience (DevX) tools, IDE integrations, or code-intelligence systems. Experience with AI/ML model fine-tuning, prompt engineering, or evaluation frameworks. Familiarity with cybersecurity, secure-by-design principles, or government/missions systems Prior role as a thought leader, principal engineer, architect, or technical founder. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. March 10, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $69,550.00 - $125,725.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Job Description IERUS specializes in electromagnetic spectrum technologies and design for RF, IR, and optical applications. IERUS also supports customers with a diverse set of competencies including software development, air and missile defense, and systems engineering. IERUS develops value for our defense and commercial customers through accelerations of the technology life cycle: identifying, creating, transitioning, and producing technologies with integrity of purpose and product. IERUS is always looking for bright, talented, motivated and dedicated employees in the engineering field, especially those with electromagnetics experience. IERUS offers competitive compensation packages, retirement options, and benefits packages. To learn more, please visit . Job Description The primary responsibilities of this position are performing systems engineering using technical planning; system integration, verification and validation; cost and risk studies; and supportability and effectiveness analyses for total systems. This position is also responsible for using tools to identify different program requirements, tracking performance metrics, and managing the systems engineering process. This position is contingent upon award of work. Required Qualifications • Bachelor of Science in Electrical, Systems, Mechanical Engineering, or related field, • Entry level and up;, • Experience performing systems engineering, • Familiar with requirements development and lifecycle process, • Proficient in DOORS, • Active DoD Secret Clearance, • Master of Science in Electrical, Systems, Mechanical Engineering, or related field:, • Familiar with MBSE tools i.e., CAMEO, Magic Draw, etc., • Experience with requirements verification and validation process Huntsville, AL IERUS Technologies is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class. IERUS Technologies participates in E-Verify.

Active SECRET security clearance (or ability to obtain one).

Collaborate with other experts within the program and in the user community to design, develop, and debug existing software, and to design and develop enhancements that incorporate new capabilities into various components of the existing systems. We're recruiting the ones who disrupt, provoke, a

The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees.

Program Analyst will provide direct customer support for the Missile Defense Agency (MDA) Terminal High Altitude Area Defense (THAAD) program office by translating warfighter requirements and program strategies into executable acquisition plans and robust contractual instruments. Program Analyst wil

Value Engineer certification such as Value Methodology Associate (VMA), Associate Value Specialist (AVS), or Certified Value Specialist (CVS) preferred. DoD roles) Knowledge of Value Management (VM), FAR Part 48, DFARS 215. Execute Value Engineer (VE) studies using the VE Job Plan: Information, Func

As a program and project management spe.Many programs require a significant investment of limited resources, and it’s imperative to keep the project on a productive path.That’s why we need you, a seasoned program and project management spe.As a leader on our team, you’ll implement and maintain

Program Quality Analyst to join our team.

Other Duties as assigned by the Quality Program Manager. Leidos’ Defense Systems is seeking a Quality Engineer to join our team!. To includes review of those completed by other Quality Engineers.

Configuration, troubleshooting, data analysis, and integration of a wide variety of applications and equipment such as internal software libraries and products, GPS receivers, LiDAR sensors, Inertial sensors, network routers, radio modems, meteorological sensors, serial port hubs, etc.

Army Game Studio team located onsite at Redstone Arsenal, Huntsville, Alabama.Hybrid support 1-2 days at home - per customer/program.Interact with team members, customers, and Subject Matter Experts (SMEs) to develop an application using the Unity game engine for the Army and other DoD customers.Con

Our ideal candidate is someone with great technical and problem-solving skills, a motivated personality, and a high degree of creativity!.

Looking for an opportunity to make an impact?.At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success.We empower our teams, contribute to our communities, and operate sustainable.Everything we do is built on a co

Our Mission, Vision, and Values guide the way we do business. Foster a program quality strategy and culture committed to excellence and Leidos values, enabling rapid manufacturing scaling. Experience with Earned Value Management (EVM) and metrics-based quality reporting.

The Program Manager will serve as the single contract manager / director and representative authorized to interface with the Contracting Officer, Contracting Officer’s Representative (COR), and Government customer representatives concerning the Reagan Test Site Operations, Sustainment, Improvement

Bachelor’s degree in Software Engineering, Computer Science, Computer Engineering, or equivalent and five (5) years’ experience working with Software Design and Development; Additional six (6) years’ experience can be considered in lieu of degree (per contract vehicle). Frontend WPF Software E

BS in Computer Science/Engineering and 8-12 years of experience. MS in Computer Science/Engineering and 8+ years of experience.

Project Management Professional (PMP) Certification from the Project Management Institute (PMI). The Senior Program Manager will:. Lead project teams throughout the product delivery life cycle of the program, both hardware and software development, to support the client with critical missions.

SAIC is seeking a highly qualified.Aviation Systems Integration Lab (AVNSIL), located within the Software, Simulation, Systems Engineering and Integration Directorate (S3I) at.The selected candidate will play a key role in the development and integration of aircraft simulation and stimulation (sim/s

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry.We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.SOS International LLC (SOSi) is s

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry.We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.SOSi is seeking highly skilled So

This FMS Program Analyst will support the PATRIOT program in the Missile Directorate of SAMD.

GMD Ground Systems Development Analyst. GMD Ground Systems Development Analyst. As a member of the Federal Solutions team, this Analyst will play a key role in providing Systems Engineering and Technical Assistance to the Ground-based Midcourse Dense (GMD) Product Office under the Teams Next Missile

Principal Rust Software Engineer to design and develop high-performance, analytics-driven systems supporting mission-critical research and product development initiatives.This role provides technical leadership in modern software engineering, leveraging Rust-based systems programming, data-intensive

Koniag IT Systems, LLC, a Koniag Government Services company, is seeking an IT Portfolio Manager with a Secret security clearance to support KITS and our government customer in Huntsville, AL. Koniag IT Systems, LLC a Koniag Government Services company, is seeking an experienced Information Technolo

Kadiak, LLC is seeking a Program Manager in Redstone Arsenal, Huntsville, AL with a Top-Secret Clearance to act as primary contact between our office and the Federal Bureau of Investigations (FBI). The Program Manager will have essential multi-discipline team representation and be self-motivated, we

Site Activation Program Coordinator.

Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support.

Ability to provide rapid intelligence responses.

Completion of the instructor led Center for Development of Security Excellence (CDSE) Introduction to SAPSs course; experience implementing security training to meet specific SAP requirements; experience performing PSO functions in support of both government and contractor customers. Individual will

Space-Based Interceptor Ground System Analyst.

Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employer’s core culture? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you!

KBR’s Defense and Technology Solutions division delivers mission engineering solutions for critical U.Army programs, specializing in aviation and ground systems, integrated air and missile defense, and threat and target systems.Department of Defense, KBR’s Defense and Technology Solutions divisi

Collaborate with other experts within the program and in the user community to design, develop, and debug existing software, and to design and develop enhancements that incorporate new capabilities into various components of the existing systems. We're recruiting the ones who disrupt, provoke, a

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry.We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.SOS International LLC is seeking

Experience with DoD or NASA test and evaluation processes, standards, and compliance frameworks, such as NASA and DoD T&E guidelines. Microsoft Project and regular interactions with SMEs, schedulers, customers, and project analysts. Experience with wind tunnel operations, including facility mana

Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering or related field required. A Software Engineer 2 is an experienced professional responsible for designing, developing, and maintaining software applications. The company's capabilities includ

Description Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos Defense Manufacturing Sector is seeking a CNC Programmer with Siemens NX experience to support multi-axis machining of complex aerospace and defense hardware. This role requires a strong technical foundation in CNC programming and machining processes, with the ability to work independently on day-to-day objectives and contribute to process development and improvement. The selected candidate will develop and maintain CNC programs and associated manufacturing documentation, support production operations, and collaborate across engineering and manufacturing teams to deliver robust, repeatable machining processes. If this sounds like the kind of environment where you can thrive, keep reading! Leidos Defense Systems Sector / Manufacturing provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click ___! Are you ready to make an impact? Apply and share your resume with us today! Primary Responsibilities * Develop and maintain CNC programs for 3 & 5-Axis machining using Siemens NX. * Create complete work packages including programs, setup sheets, tooling, and process documentation. * Provide hands-on shop floor support to troubleshoot and resolve machining and programming issues. * Own and improve machining processes within assigned parts or product areas. * Collaborate with manufacturing engineering, quality, and operations to ensure process capability and compliance. * Support root cause analysis and corrective actions for non-conformances. * Contribute to tooling and fixture development to support efficient production. * Drive and support continuous improvement initiatives (safety, quality, cost, delivery). * Communicate effectively with internal stakeholders and influence process and programming approaches. Basic Qualifications * BS degree with 4 years of relevant experience in CNC machining and/or CNC Programming or equivalent combination of education and experience. * 2+ years of experience using Siemens NX CAM. * Strong working knowledge of 3-axis and 5-axis machining and mill-turn machining. * Experience machining a variety of materials including aluminum, steels, stainless steels, and nickel-based alloys. * Solid understanding and application of GD&T. * Demonstrated ability to troubleshoot technical issues and implement effective solutions in a production environment. * Ability to work independently on technical tasks and processes. * Familiarity with lean manufacturing principles. * Must be a US Citizen and possess (and be able to maintain) OR meet the eligibility to obtain (and maintain) a Secret Clearance. Preferred Qualifications * Experience with wire EDM, plunge EDM, and CNC OD/ID Grinders. * Experience with Renishaw probing and CNC macro programming. * Familiarity with Surfcam and/or SolidWorks. * Experience with ERP/MES systems (e.g., Costpoint, Solumina). * Experience in aerospace or defense manufacturing environments. * Experience with large gantry mills, bridge mills, VTLs, or large lathes. HuntsvilleManufacturing If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. April 7, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $73,450.00 - $132,775.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Description About Us: Leidos is a leader in IT Cybersecurity industry, dedicated to providing secure and innovative solutions to our global client base. Our engineering team is paramount to our success, ensuring the confidentiality, integrity, and availability of our systems and data. We are looking for a seasoned expert to join our team and take a leading role in shaping our PKI landscape. Position Overview: We are seeking a highly skilled and experienced Senior Linux PKI Engineer with experience in Linux and Windows Virtualization platforms to join our dynamic Engineering team. The ideal candidate will be a subject matter expert in Public Key Infrastructure with a strong background in Linux systems. This role is responsible for the design, implementation, and maintenance of our enterprise-wide PKI solutions. You will play a critical role in the security of our digital communications and transactions, ensuring robust and reliable certificate management across our entire infrastructure. This role operates within large-scale, geographically distributed environments supporting high-availability and mission-critical systems. Key Responsibilities: • Architect and Design: Lead the design and architecture of a scalable, resilient, and secure PKI infrastructure., • Implementation and Management: Deploy, configure, and manage all aspects of the PKI environment, including Certificate Authorities (CAs), Registration Authorities (RAs), and Hardware Security Modules (HSMs)., • Automation: Develop and maintain automation scripts (using Python, Bash, or similar) to streamline certificate lifecycle management, including issuance, renewal, and revocation., • Linux System Administration: Manage and maintain the underlying Linux-based systems hosting the PKI services, ensuring high availability and performance., • HSM Management: Administer and maintain Hardware Security Modules (HSMs) to ensure the security of cryptographic keys., • Policy and Governance: Develop, implement, and enforce PKI policies, standards, and procedures., • Compliance and Accreditation: Support RMF (Risk Management Framework) processes, ensuring PKI systems align with STIG requirements, security controls, and accreditation standards. Assist with auditing activities and provide artifacts/evidence for system authorization., • Troubleshooting: Serve as the highest level of escalation for complex PKI-related issues., • Collaboration: Work closely with application, network, and other infrastructure teams to integrate PKI and provide certificate management solutions., • Mentorship: Provide guidance and mentorship to junior engineers and other team members., • Stay Current: Keep abreast of the latest PKI technologies, standards, and security threats to continually improve our security posture. Basic Qualifications: • Experience: 8+ years of experience in IT with at least 5 years in a dedicated PKI engineering role., • Education: Bachelor’s degree in Computer Science, Information Security, or a related field, or equivalent work experience., • PKI Expertise: In-depth knowledge of PKI concepts, including X.509, certificate lifecycle management, CRL, OCSP, and SCEP., • Linux Proficiency: Extensive hands-on experience with Linux administration (RHEL, CentOS, or similar), including system hardening and performance tuning., • Scripting Skills: Strong proficiency in at least one scripting language, such as Python, Bash, or Perl, for automation and integration., • HSM Experience: Proven experience with managing and integrating Hardware Security Modules (e.g., Thales, Entrust, nCipher)., • PKI Platforms: Hands-on experience with enterprise-grade PKI platforms (e.g., EJBCA, PrimeKey, Venafi, or Microsoft CA)., • Networking: Solid understanding of network protocols and security, including TCP/IP, TLS/SSL, and SSH., • Compliance Frameworks: Experience supporting RMF, STIG implementation, and security compliance in regulated or classified environments, including participation in audits and accreditation processes., • US citizenship and active DoD Secret clearance required. Required Certifications: • Certifications: Red Hat Certified Engineer (RHCE), or VMware Certified Professional (VCP), or An Advanced MS Server level certification. Preferred Skills: • Certifications: Professional certifications such as CISSP, RHCE, or specific PKI vendor certifications are highly desirable., • DevOps: Familiarity with DevOps practices and tools (e.g., Ansible, Puppet, Chef, Terraform)., • Containerization: Experience with container technologies like Docker and Kubernetes., • Large-Scale Environments: Experience managing PKI in a large, complex, and geographically distributed enterprise environment., • Enterprise Scale: Experience supporting PKI in large-scale, geographically distributed environments with high-availability and mission-critical requirements. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. April 23, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit ___. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at ___. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at ___. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the ___. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Job DescriptionHuntsville, AL Full Time Security Clearance: Active Secret Clearance required. Job Description & Position Responsibilities: Penta Research is seeking a full-time Systems Engineer who will be working onsite supporting our Space Force effort. A Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline from an accredited university and 10 years of related experience, or a Master's Degree and 8 years of related experience, or 7 years of experience with a PhD. Basic Qualifications: • CONOPs Development, • Physical, Functional, and Logical Architecture Development, • System Level Requirement Derivation, • Strong prior experience with DOORS, • Missile Defense Domain knowledge, • Experience working in Hardware and Software integration, • Capable of working both independently and within a small team environment., • Ability and willingness to travel up to 10% of the time to support business needs., • Applicants must have a current active in-scope U.S. Government DoD issued Secret security clearance at the time of application which is required to start. Travel Requirement: • Position location: Huntsville, AL. Travel is required for this position.

Job Description Job Description: The System Engineering & Integration Team (SE&IT) is seeking a Responsible Systems Engineer (RSE) to join the System Concepts and Requirements (SC&R) team in Huntsville, AL. The successful candidate will lead cross-functional teams to develop system level architecture and requirements to influence Missile Defense Agency (MDA) incremental capability. The candidate will use Model Based Systems Engineering (MBSE) to evaluate architectural impacts through functional and behavior analysis for the defeat of conventional and advanced Threats (i.e., ballistic, aero-maneuvering, hypersonic, hyper-glide, countermeasures, etc.) systems within the (MDA) mission areas. The RSE will collaborate in an MBSE environment to develop system-of-systems requirements via system/component trade studies and analysis, and lead the development of Change Notices (CNs) to MDA’s system specification to include functional, interface and performance requirements, architectural models, interface definitions, and support Trace verification from System to Element level requirements. The RSE will develop and deliver products (i.e., technical briefings, CNs) to support internal and MDA stakeholder reviews. Desired Qualifications: Demonstrated experience modeling or simulating missile defense applications or similar domains (air combat, air defense, intercept of ballistic targets, intercept of non-ballistic targets, space vehicles, sub-orbital mechanics, etc.). Knowledge of ballistic and advanced threat systems (i.e., aero-maneuvering, hypersonic, hyper-glide, countermeasures, etc.). Modeling and analysis experience in aspects of the missile defense system (e.g., Aegis Weapons Systems, Ground-based Midcourse Defense (GMD), Glide Phase Intercept (GPI), Hypersonic and Ballistic Tracking Space Sensor (HBTSS), Fire Control, C2BMC, MDS sensors (EO/IR/RF), kill vehicles, interceptors, countermeasures, Systems engineering experience with large, complex systems. Required Qualifications: The RSE must demonstrate a strong technical background in architecture development, functional decomposition and allocation of requirements (performance, functional and interface definition) with system-modelling tools. Candidate must have strong prior experience with use of MSOSA (Cameo) and DOORS and demonstrated knowledge in any of the MDA domain areas; including Ground-based Midcourse Defense (GMD), Glide Phase Intercept (GPI), Hypersonic and Ballistic Tracking Space Sensor (HBTSS), Fire Control, C2BMC, MDS sensors (EO/IR/RF). The successful candidate must demonstrate the ability to think critically and capture concepts in papers, presentations and discussions. The individual must possess good communication/presentation skills and be capable of working both independently and within a small team environment. The successful candidate will work in close coordination with the customer. Education: Degree in an engineering classification, mathematics or physics: Bachelor’s, Master’s or PhD. Clearance: Secret Company DescriptionISSAC is a Systems Engineering and Advanced Data Analytics company. We support clients across a wide range of industries, including federal/defense, bioscience/healthcare, and commercial. ISSAC offers competitive salaries, Medical, Dental, Vision and Life Insurance. We also have 4 weeks of PTO, 11 holidays, education assistance, 401K program and profit sharing.ISSAC is a Systems Engineering and Advanced Data Analytics company. We support clients across a wide range of industries, including federal/defense, bioscience/healthcare, and commercial. ISSAC offers competitive salaries, Medical, Dental, Vision and Life Insurance. We also have 4 weeks of PTO, 11 holidays, education assistance, 401K program and profit sharing.

Job Description Education: High School Diploma or GED Months/Years of Experience: IT systems administrator with a minimum of 20 years' experience supporting classified and unclassified DoD environments.. Required Qualifications: U. S. Citizen. Must have a Security Clearance. Senior / expert level knowledge of IT infrastructure design and implementation, Windows workstation and Server OS, Active Directory, RHEL, VMware vCenter/vSphere, high performance computing clusters (HPC), automation tools such as PowerShell and Ansible, RMF auditing, STIG mitigation, SCAP/SCC, vulnerability management with Tenable Nessus, patch and configuration management (WSUS), backup and recovery implementations, log and event monitoring and management Duties: Serve as IT systems trusted advisor. Provide expert council on selection of IT systems, components, and technologies. Oversee integration planning and deployment of IT systems. Coordinate with RTC S6 to ensure adherence to cybersecurity standards, including STIG, RMF, and vulnerability management best practice. Evaluate technologies and recommend solutions that enhance operational efficiency. Up to 25% travel. Comments: Compliance with health mandates as dictated by the contract may be a condition of employment.

Job Description PD03: Business Operations & Program Management Support Analyst – Senior Description: As a senior analyst, this individual provides comprehensive program management oversight and strategic support. The role is responsible for conducting in-depth analysis of cross-program activities, managing and mitigating risks, and ensuring that technical progress is effectively translated and communicated to all stakeholders. This position requires a deep understanding of program management principles and the ability to integrate resources strategically to achieve mission outcomes. Duties May Include: • Overseeing and contributing to multiple program efforts by performing integrated analysis of cost, schedule, risk, and contract performance to identify enterprise-level trends and conflicts., • Serving as a liaison between technical and non-technical teams, translating complex technical progress and issues into clear, concise reports for customers and senior leadership., • Leading the development of strategic resource integration plans, capturing and validating resource requirements needed to achieve long-term program objectives., • Conducting detailed analyses of multiple internal and external projects to identify interdependencies, risks, and conflicts, providing actionable recommendations to government program managers., • Facilitating preparations for senior management reviews, including developing briefing materials, coaching presenters, and tracking pre-brief action items. Required Skills: • A minimum of 8 years of demonstrated experience in Program Management (cost, schedule, performance, risk)., • A Bachelor's degree in a relevant field such as Program Management, Business, or Computer Science., • Demonstrated experience supporting the full lifecycle of Major System Acquisitions within the DoW or IC. Desired Skills: • Project Management Professional (PMP)® or DAWIA Level II/III certification in Program Management., • Demonstrated expertise with advanced functions of project management tools and techniques., • Direct experience with the Geospatial Intelligence (GEOINT) mission or NGA.