74 senior principal systems engineer jobs found

Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: Ability to obtain a Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a Systems Engineer, you will work alongside a team of highly talented hardware and software engineers to build new technologies to counter threats of tampering, reverse engineering, and supply chain exploits....

Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.   CLEARANCE REQUIREMENTS: Department of Defense TS/SCI with Polygraph security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES:   As a Senior-Level Systems Engineer for CISR, you’ll be a lead member of cross-functional hardware and system design teams responsible for the realization of complex computing and communications systems. You’ll make...

Description SAIC is seeking a qualified Command, Control, Communications, Computers/Information Technology (C4/IT) Engineer to join our team and provide critical support to Marine Corps Installation Command (MCICOM) Defense Policy Initiative (DPRI) Pacific Posture Military Construction (MILCON) efforts in Guam, Tinian, and Darwin. The ideal candidate will bring extensive, recent experience in providing technical support to project teams and ensuring planning and design efforts meet U.S. Marine Corps (USMC) C4/IT mission capability requirements for each facility within the MCICOM-DPRI framework and/or Naval Information Warfare Center (NIWC) Pacific (PAC) Code-H operations. *THIS IS A FULLY REMOTE ROLE BUT MUST BE LOCAL TO GUAM* The responsibilities for this position include serving as a technical representative and subject matter expert (SME) by providing on-site assessments and answers to Requests for Information; reviewing and commenting on various MILCON C4/IT...

Basic Qualifications Education Requirements: Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     Clearance Requirements : Department of Defense Top Secret security clearance is required at time of hire.  Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is...

Position Summary Evergreen (Pipeline) Requisition This requisition is used to build a pipeline of qualified candidates for future opportunities. While there may not be an immediate opening, candidates will be considered as positions become available based on their qualifications and program needs. Odyssey is seeking experienced Aquisition Program Engineers (Systems, Mechanical, and Software) to join our talent community for anticipated opportunities supporting the Air Force Life Cycle Management Center (AFLCMC) Armament Directorate and other Department of Defense (DoD) acquisition programs. Our Engineers support the government with designing, developing, integrating, and sustaining complex weapon systems and associated technologies across the full acquisition lifecycle. This includes systems engineering, mechanical design and analysis, and software development activities to ensure systems meet performance, reliability, and mission requirements....

Description: Role Overview As a Test Engineer within Lockheed Martin Space, you will play a key role in ensuring complex aerospace systems are properly assembled, integrated, and tested before delivery. You will support the full lifecycle of hardware integration and testing—helping verify system performance, resolve issues, and ensure mission readiness. This role offers hands-on technical work, collaboration across disciplines, and the opportunity to grow into a Certified Test Conductor supporting high-visibility aerospace programs. Key Duties / Responsibilities • Test Lead for Mission Support Vehicle on NGI • Execute assembly, integration, and test activities to ensure systems operate as designed • Develop, update, and maintain test procedures that support vehicle integration and delivery • Plan and coordinate daily test readiness and execution across multiple internal and external teams • Support and perform system and subsystem testing, including regression testing after...

Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a software engineer for the Space, Cyber, and Intelligence (SC&I), you’ll lead a cross functional team responsible for developing the crypto and cross domain solution products.     We encourage you to apply if you have...

Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Fleet Ballistic Missiles (FBM) is one of Lockheed Martin’s best-in-class Lines of...

Description: We are Lockheed Martin You will be the Software Engineer Principal for the IMIS Software Integration team which is responsible for delivering mission critical software solutions for the F 22 program. What You Will Be Doing As the Software Engineer Principal you will be responsible for shaping the end to end software delivery lifecycle and serving as the central liaison between engineering, program management, and customers. Your responsibilities will include: • Portfolio Integrator will tend to be outward facing (to Business Manager, PMO, Customer) • Main interface to Program Management Office for future and current contract tasks • Main interface to the F-22 LOB Chief Engineer's Office • Coordinate and negotiate planned and final delivery content with Air System customers • Provide primary interface point for delivery and issue discussions • Works with first and second line functional leaders to identify program team staffing needs • Collaborate...

Description: Role Overview As a Senior Systems Integration and Test Engineer, you will help bring complex hardware systems to life. You’ll plan and execute integration and testing activities that support the THAAD Ground program—delivering critical capabilities for defense missions. Your work will span development through production, ensuring systems perform reliably when it matters most. Key Duties / Responsibilities ● Provide technical oversight for hardware assembly, integration, and testing ● Lead and support teams executing integration and test activities ● Develop and review technical documents, test plans, and presentations ● Present program status and technical results to leadership and customers ● Partner with cross-functional teams to resolve issues and improve processes ● Support program reviews and ensure alignment with customer requirements Work Environment ● Onsite role based in Huntsville, Alabama, across multiple facilities ● Collaborative, team-oriented...

Description: Company Mission & Program Overview At Lockheed Martin Space , we don’t just imagine the future—we build it. Our teams tackle some of the world’s most complex engineering challenges, delivering solutions that help protect lives and strengthen global security. Every day, our people bring passion, curiosity, and technical excellence to missions that truly matter. One of those missions is missile defense. Through constant innovation and deep collaboration, we design and integrate advanced systems that can detect, track, and intercept missile threats across all domains. What was once science fiction—intercepting a missile with a missile—is now a proven reality. The Next Generation Interceptor (NGI) program represents the next leap forward in missile defense capability. This program brings together cutting-edge technology, disciplined engineering, and mission-driven professionals to deliver solutions that could redefine how the world responds to emerging threats....

Basic Qualifications Requires a Bachelor’s degree in Electrical or Computer Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: :   Department of Defense TS/SCI security clearance is preferred at time of hire. Candidates must be able to obtain a TS/SCI clearance within a reasonable amount of time from date of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Primary Job Qualifications: We encourage you to apply if you have any of these preferred skills or experiences: In-depth experience using...

Position Summary Odyssey Systems has an exciting opportunity for a Principal Agile DevSecOps Engineer providing support to the Air Force Life Cycle Management Center (AFLCMC), PEO Digital Directorate (AFLCMC/HBU).   The Air Force Program Execution Office for PEO Digital (AFPEO/HB) has the collective Air Force Materiel Command (AFMC) mission responsibility to manage and execute the modernization, development, testing, production, fielding, and sustainment of the PEO Digital portfolio, which includes over 130 programs for the United States Air Force (USAF) and foreign allies. AFLCMC/PEO Digital Directorate is headquartered at Hanscom Air Force Base, MA with geographically separated operating units CONUS and OCONUS.   This is a full-time position located at Hanscom Air Force Base, MA. The Principal Agile DevSecOps Engineer will provide Agile DevSecOps systems engineering support applying a broad theoretical and practical knowledge of systems engineering...

Description: WHAT WE'RE DOING We are seeking a highly skilled and motivated Principal Structural Analysis Engineer to join our Accelerated Materials & Product Development (AMPD) engineering department. In this role you will design, analyze, and test a variety of structures and systems to ensure they meet project requirements and industry standards. THE WORK - Lay out load paths early in the design phase and perform detailed analysis throughout the design cycle. - Document analysis results and conduct non‑conformance investigations during production. - Coordinate with other engineering disciplines to evaluate material and component structural tests, including validation using strain‑gage data. - Interpret design specifications, codes, and standards to ensure project compliance. - Collaborate with project teams to verify design intent and resolve issues promptly. - Provide technical support during fabrication and validation phases of the engineering cycle....

Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.  At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.  Join us in shaping a new era in space and find a career that's built for you. The Fleet Ballistic Missile (FBM) Program is seeking a Responsible Engineer to...

Description: At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design, and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you! Lockheed Martin is looking for a dynamic Chief Engineer to lead cutting edge development programs. Your role at LM Space is critical for the successful development of the most advanced technology and complex systems in the world. You will be the chief technical authority for the IGNITE ACES portfolio that works closely with Program Management and technical SMEs to develop solutions, drive affordability, and lead...

Position Summary Odyssey has an exciting opportunity for a Principal/Senior Acquisition Program Engineer – Navigation, Guidance & Control (NGC / GNC) & Time-Space-Position Information (TSPI) supporting the Air Force Life Cycle Management Center Armament Directorate Advanced Programs Division (AFLCMC/EBA).   On the Emerald Coast—where cutting‑edge weapons development meets white‑sand beaches—you’ll ensure anything that guides, navigates, or tracks stays lethal, reliable, and ahead of the threat. This role brings technical punch across the entire DoD acquisition lifecycle, tackling the toughest NGC and TSPI challenges in modern armament systems. You’ll blend deep theoretical know‑how with practical engineering expertise to evaluate designs, validate performance, and enforce technical rigor from concept through fielding and sustainment. If it flies fast, maneuvers hard, or must stay locked‑on in a denied environment—you’ll make sure it performs...

Description: We are Lockheed Martin We are seeking a highly experienced Principal Project Engineer to lead and manage C130 new development and modernization efforts. You will function as part of the AMMM Project Engineering team responsible for delivering complex system development products and solutions. What You Will Be Doing As a Principal Project Engineer Manager your responsibilities will include: • Be the technical leader solving new development opportunities or modernized solutions of an integrated and complex system/technical development from concept, through design, implementation, test, manufacturing/deployment and sustainment. • Ensure alignment with Engineering and Technology strategy, business development, program architect, technical feasibility. • Drive planning, technical performance measures, trade studies, risk evaluations, across all Engineering Teams to meet contract cost, schedule, and technical requirements. Lead and manage engineering teams to...

ECS is looking for a Principal Systems Engineer - Embedded Software Engineer to work Onsite in Arlington, VA. The Principal Systems Engineer will provide senior-level technical oversight, quality assurance, and lifecycle governance for embedded tactical software supporting Department of Defense and Navy weapon and combat systems. This is a principal individual-contributor role focused on reviewing, validating, and auditing embedded software and engineering decisions-not people management or day-to-day software development. The ideal candidate has deep experience in safety-critical, highly regulated environments such as missile systems, Aegis or Navy combat systems, or other real-time defense platforms, and brings the technical judgment needed to independently assess software quality, integration impacts, and engineering rigor. What You'll Do Serve as a senior technical authority on Change Control Boards (CCBs) governing embedded software updates and configuration...

Description SAIC is seeking a Senior SIGINT Network Engineer in Ft. Meade, MD . Candidates must have the ability to work fully onsite at Fort Meade, MD. JOB DESCRIPTION : Analyze and design ISR data flows, addressing latency, throughput, and synchronization issues; create technical documentation and resolve data workflow bottlenecks. Analize network protocols and configurations (e.g., OSPF, BGP, VLANs, QoS). Configure network hardware and tools, including routers, switches, firewalls, and monitoring systems. Develop integration strategies for ISR platforms, ensuring compliance with standards; implement scalable ISR pipelines using edge computing and AI/ML models. Translate operational concepts into technical requirements; author and review architecture views, ICDs, SEPs, and TEMPs; conduct trade studies and present findings. Oversee ISR and SIGINT tools implementation, advise on AI/ML deployments, ensure CSfC compliance, and manage cross-domain information sharing....