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14 information system security engineer jobs found in Manassas

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Security Clearance Manassas information system security engineer
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General Dynamics Mission Systems, Inc
Jun 01, 2026
Software Engineer (C++, Linux, bash scripting) - Active Secret clearance
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 active 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. Candidate must be local to the area and able to work onsite.  Responsibilities for this Position At General Dynamics Mission Systems, we build advanced technologies that keep our nation safe and our warfighters prepared. Our engineers tackle some of the most complex and consequential challenges in defense, delivering solutions that redefine...
General Dynamics Mission Systems, Inc
Jun 01, 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 01, 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 01, 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! What...
General Dynamics Mission Systems, Inc
Jun 01, 2026
Cyber Security Engineer - RMF (Active Secret Clearance)
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience.   CLEARANCE REQUIREMENTS: Department of Defense active Secret security clearance is required .  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 be local to the office and able to work onsite.  Responsibilities for this Position ROLE AND POSITION OBJECTIVES As a Cybersecurity Systems Engineer, you will own the end-to-end RMF lifecycle for Navy information systems — from categorization through authorization and continuous monitoring. You will be the primary technical authority for building,...
General Dynamics Mission Systems, Inc
May 29, 2026
Linux Software Engineer - Active Secret Clearance
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 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 requires an active 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 . Candidate must work onsite.  Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a Software Integration Engineer for the Multipurpose Interactive Trainer (MIT) team , you’ll be a member of a cross functional team responsible for delivering cutting edge...
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...
General Dynamics Mission Systems, Inc
May 18, 2026
CWL Experienced Systems Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Electrical Engineering or Computer Engineering, or a related Science, Engineering or Mathematics field. Also requires 2+ years of job-related experience or a Master's degree. Agile experience preferred.     CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required within a reasonable period. 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 for CWL, you’ll be a member of a cross functional team responsible for the system engineering and functional design of the system under development, addressing topics such as payload integration, weapon launch interlocks,...
General Dynamics Mission Systems, Inc
Jun 01, 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 focused on undersea sensor systems. In this role, you will be responsible for designing, developing, and...
General Dynamics Mission Systems, Inc
Jun 01, 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 focused on undersea sensor systems. In this role, you will be responsible for designing, developing, and implementing advanced algorithms and...
General Dynamics Mission Systems, Inc
Jun 01, 2026
Senior Engineering Support Specialist – U.S. Navy Submarine Sonar Technician (STS)
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's or Technology degree in Engineering or a related specialized area/field, or equivalent combination of education and relevant work experience, plus 2 years of relevant experience; or Master's degree plus 0 years of 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 At General Dynamics Mission Systems, we create the technologies, products and services that help our nation’s heroes keep our nation safe. The work we do is so advanced, we are continuously moving the boundaries of what’s possible. Here you’ll work with the best and your talent will be front...
General Dynamics Mission Systems, Inc
Jun 01, 2026
Senior Contracts Manager - Maritime & Strategic Systems Business Area
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Education Requirements:  Bachelor's degree or equivalent combination of education and relevant work experience is required plus a minimum of 10 years of relevant experience; or Master's degree degree plus a minimum of 8 years of relevant experience to meet managerial expectations.   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 Join General Dynamics Mission Systems in the Progeny Systems Business Area within the Maritime & Strategic Systems line of business. As a Senior Contracts Manager, you'll lead a team of contract professionals,...
General Dynamics Mission Systems, Inc
May 18, 2026
Seeking a Technical Writer to join our very talented team of professionals
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor’s degree in a related specialized area or field, or equivalent is required plus a minimum of 2 years of relevant experience; or Master's degree. 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 We are seeking an experienced Technical Manual Developer to join our Technical Writing team in support of cutting-edge U.S. Navy submarine systems. The ideal candidate will bring 6+ years of full-time experience developing Navy Technical Manuals, with a strong emphasis on the use of S1000D, and a passion for creating clear, mission-critical documentation. Prior experience...
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