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80 systems security engineer jobs found

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Lockheed Martin
May 23, 2026
Cyber Systems Security Engineer
Lockheed Martin Manassas, VA
Description: WHAT WE’RE DOING At Lockheed Martin - Rotary and Mission Systems, we're shaping the future of Undersea Warfare (USW) systems. Our mission is to develop innovative technologies that secure our nation’s defense. We are integrating state-of-the-art cybersecurity solutions into mission-critical systems to ensure resilience, integrity, and continued superiority under the sea and across domains. THE WORK As a Cyber Systems Security Engineer, you will take a leadership role in enhancing cybersecurity across SWFTS (Submarine Warfare Federated Tactical Systems). You’ll drive the development and integration of modern cyber solutions that protect and empower critical Department of Defense (DoD) assets. Key responsibilities include: Designing, implementing, and maintaining security controls to protect system confidentiality, integrity, and availability Leverage guidance from Risk Management Framework (RMF), Security Requirements Guides (SRG), and Security Technical...
Lockheed Martin
May 23, 2026
Cyber Systems Security Engineer
Lockheed Martin Manassas, VA
Description: WHAT WE’RE DOING At Lockheed Martin - Rotary and Mission Systems, we're shaping the future of Undersea Warfare (USW) systems. Our mission is to develop innovative technologies that secure our nation’s defense. We are integrating state-of-the-art cybersecurity solutions into mission-critical systems to ensure resilience, integrity, and continued superiority under the sea and across domains. THE WORK As a Cyber Systems Security Engineer, you will take a leadership role in enhancing cybersecurity across SWFTS (Submarine Warfare Federated Tactical Systems). You’ll drive the development and integration of modern cyber solutions that protect and empower critical Department of Defense (DoD) assets. Key responsibilities include: Designing, implementing, and maintaining security controls to protect system confidentiality, integrity, and availability Leverage guidance from Risk Management Framework (RMF), Security Requirements Guides (SRG), and Security Technical...
Lockheed Martin
Mar 16, 2026
Cyber System Security Engineer
Lockheed Martin Herndon, VA
Description: The coolest jobs on this planet... or any other... are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin Space is a pioneer, partner, innovator, and builder. Our amazing people are on a mission to make a difference in the world. Every single day, we use our unique skills and experiences to craft, design, and build solutions to some of the world's hardest engineering problems. Our culture inspires our employees to dream big; perform with excellence; and build incredible products. We provide the resources, the support, and the focus. You bring the passion and courage to envision limitless possibilities. Together, we'll build a better tomorrow. Are you ready to further your career in Cyber Security by working for one of the top companies in the world? The Kayenne program is seeking a Cyber Security Engineer technical lead for the Program’s Cyber Team. This team is responsible for applying an interdisciplinary, collaborative approach to plan,...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Sr Advanced Space Systems Engineer- Chantilly, VA
General Dynamics Mission Systems, Inc Chantilly, VA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience. Agile experience preferred. .   CLEARANCE REQUIREMENTS:  Department of Defense TS/SCI 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 GDMS Sr. Advanced Systems Engineers analyze, design, develop and test GDMS systems to ensure the integration of software, hardware, reliability, maintainability, safety and other requirements in the total engineering effort.   Responsibilities include...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Senior Advanced Test Engineer - Test Program Lead - $5,000 Sign On Bonus
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience.     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 This position has a $5,000 sign on bonus.   The Test Program Lead serves as the technical and programmatic authority for all CWL and MTWS verification and validation activities. This role owns the end-to-end Test & Evaluation strategy, including test planning, readiness, customer engagement, and certification...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Software Integration Engineer – Submarine Combat Systems
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Computer Science/Computer Engineering/ Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.  Must have Kubernetes or Linux.   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is obtainable within a reasonable amount of time after 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. Candidate must local to the area and able to work onsite.  Responsibilities for this Position Integration Engineer – Submarine Combat Systems Seeking an Integration Engineer to support the Common Infrastructure Services...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Lead Engineer for Navy Undersea Warfare C2
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree, plus a minimum of 6 years of relevant experience. Must have Navy Undersea Warfare C2 experience.   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 Responsibilities Apply systems engineering processes including requirements analysis, architecture design, interface definition, and verification and validation (V&V) in support of this C2 Navy network program. Design, deploy, and manage containerized...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Chief Engineer – Undersea Acoustic Systems
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in  mechanical, electrical, or systems engineering or a related technical field and at least 10 years of related leadership experience in development and delivery of undersea acoustic systems for military applications. Applicants with a master's degree and a minimum of 8 years of related leadership experience are also eligible.   Department of Defense (DoD) Secret security clearance is required at time of hire – active and transferable. Top Secret clearance and eligibility for access to Special Access Program Information (SAPI) and Sensitive Compartmented Information (SCI), including willingness to submit to a polygraph, are desirable. Due to the nature of work performed in our facilities, U.S. citizenship is required. Ability to travel is required.  Travel is estimated at 25% to 35%. Responsibilities for this Position General Dynamics Mission Systems (GDMS), a market leader and...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Advanced Software Engineer (Microservice Development)
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree, plus 3 years relevant experience.   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is preferred, but must be obtainable within a reasonable amount of time after 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 We’re looking for an experienced Software Engineer to join our team and help modernize a submarine combat system using cutting-edge technologies. If you’re passionate about microservices and enjoy solving complex problems, this is the role for you!...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Computer Engineer, Embedded Hardware Test
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Computer Engineering, Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience. Agile experience preferred,   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is obtainable within a reasonable amunt of time from 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 Common Weapon Launcher and Multi-Tube Weapon Simulator Hardware Test Team, you’ll be a member of a cross functional team responsible for designing and...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Mid-level C++ Software Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Computer Engineering, Software Engineering, Computer Science, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 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: We are seeking a highly skilled and experienced Software Engineer to join our dynamic team. In this role, you will be responsible for designing, developing, and implementing advanced software...
General Dynamics Mission Systems, Inc
Jun 13, 2026
Senior Advanced C++ Software Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 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: We are seeking a highly skilled and experienced Software Engineer to join our dynamic team. In this role, you will be responsible for designing, developing, and implementing advanced software solutions for undersea sensor applications....
General Dynamics Mission Systems, Inc
Jun 13, 2026
Sr Advanced Software Engineer (Microservice Development)
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree, plus 6 years relevant experience.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is obtainable within a reasonable amount of time after 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 We’re looking for an Advanced Software Engineer to join our team and help modernize a submarine combat system using cutting-edge technologies. If you’re passionate about microservices and enjoy solving complex problems, this is the role for you!   What you’ll experience:...
Lockheed Martin
Jun 12, 2026
Satellite Mission Engr Sr
Lockheed Martin Fort Belvoir, VA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING 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. And we’re reimagining how space can connect us, ensuring security and prosperity. 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...
Lockheed Martin
Jun 12, 2026
Systems Engineer - Early Career
Lockheed Martin Herndon, VA
Description: This is a place for engineers, scientists, and problem-solvers who are ready to engage deeply, think critically, and build with purpose. You will not just launch a career. You will be part of something bigger. This is where the best are built. Lockheed Martin Space is seeking a full-time Entry Level Systems Engineer for our Herndon, VA Site. In this role, you will oversee large system project to work with subject matter experts on its execution and timeline, learn system networking, hardware, and performance capabilities to determine paths forward, and provide weekly updates on the project management or customers. The successful candidate will have experience and/or knowledge of automated testing capabilities of software and/or systems, understanding of system requirements, and overall ability to work multiple projects simultaneously. This position is looking for the candidate to start in winter of 2026 or spring 2027 once security clearance is granted. Must be a...
Lockheed Martin
Jun 12, 2026
Software Engineer
Lockheed Martin Manassas, VA
Description: Who We Are Lockheed Martin is a global leader in aerospace, defense, and technology solutions. Our Manassas campus is a thriving center of engineering expertise, fostering a culture that encourages creativity, excellence, and the creation of exceptional products. Our team is made up of dedicated professionals who are passionate about pushing the boundaries of what's possible. What We’re Doing At Lockheed Martin, we're at the forefront of cutting-edge technology and innovation. Our campus in Manassas, Virginia is a hub for engineering excellence, where we tackle some of the world's most challenging engineering problems. We pride ourselves on our culture of creativity, excellence, and product innovation. The Work Lockheed Martin Rotary & Mission Systems is seeking a full-time Software Engineer. In this role, you will perform software development tasks supporting Navy programs. The successful candidate will have experience and knowledge of coding in Java/C++...
Lockheed Martin
Jun 12, 2026
GEOSPATIAL OPERATIONS ENGINEER
Lockheed Martin Herndon, VA
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 Strata program’s mission is to provide geospatial visualization services (GVS) that...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Reverse Engineer
General Dynamics Mission Systems, Inc Fredericksburg, VA
Basic Qualifications Education Requirements: Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience.     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 Imagine a world-class engineering environment. Now add a team of exceptional talent along with technologies that are so advanced they’re often classified. That’s what you’ll find at General Dynamics Mission Systems. Here you’ll lead amazing engineers as they invent the technologies,...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Network and Cyber Systems Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus 1 year of relevant work experience; or Master's degree. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a Network and Cyber System Engineer on the MIT team, you will execute cybersecurity operations and network engineering tasks across secure environments. This is a dual-role position split evenly between cybersecurity engineering and network engineering. You will contribute to maintaining the security posture and operation of information systems while performing the configuration, troubleshooting, and design support of network infrastructure. The ideal candidate brings developing expertise across both disciplines, demonstrates initiative on assignments, and is comfortable working with moderate supervision in a mission-focused environment.     CLEARANCE REQUIREMENTS:...
General Dynamics Mission Systems, Inc
Jun 11, 2026
Assistant Team Lead - Cyber Team
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months relevant experience.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is obtainable within a reasonable amount of time after 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 an Assistant Team Lead for the Cyber Team, you'll serve as a key technical and organizational leader within a cross-functional team responsible for developing and delivering cybersecurity software solutions for the US Navy submarine and surface...
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