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359 security clearance jobs found in Manassas, VA

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Manassas, VA security clearance
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LMI
Jun 07, 2026
Policy and Security Cooperation Advisor - Clearance Required
LMI Arlington, VA
Overview LMI is seeking a skilled Policy and Security Cooperation (SC) Advisor at a customer site in the Washington, DC area. A successful candidate will demonstrate competency in project execution, leadership critical thinking, and relationship management, while upholding the highest standard of ethical behavior.   This position requires you to be at the Pentagon 3-4 days a week.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.     Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy...
Lockheed Martin
Jun 12, 2026
Inventory/Materials Asset Specialist
Lockheed Martin Manassas, VA
Description: What We're Doing At Lockheed Martin Manassas, we are enabling national security by supporting mission-critical operations through exceptional facility performance. Our Facilities Team plays a key role in ensuring that complex building systems operate efficiently, safely, and reliably in support of vital defense technologies. Every system we maintain supports a higher mission—delivering innovation and security to the nation. The Work The Lockheed Martin Inventory/Materials Asset Specialist position is accountable for the end‑to‑end control, accountability, and distribution of maintenance‑support parts stored in a dedicated stockroom that services facilities maintenance, utility systems, and customer requests. The role ensures that all parts are stocked, cataloged, and released in compliance with Lockheed Martin policies and applicable export‑control regulations. This position directly supports operational readiness, reduces downtime, and drives cost‑effective...
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++...
General Dynamics Mission Systems, Inc
Jun 12, 2026
CWL Deputy Chief Engineer (Sr Advanced Systems Engineer)
General Dynamics Mission Systems, Inc Manassas, 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 Secret security clearance is ontainable within a reasonable 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 Duties and Responsibilities Coordinates requirements development, hardware/software design, verification, and validation activities Manages technical deliverables and coordinates technical review boards to review decisions with broad program...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Seeking a prior FT/ST (Submarines) for a Subject Matter Expert & Training role on our CWL/MTWS ILS team
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s or Technology degree in Engineering or a related specialized area/field, or equivalent (4 years job-related experience). Requires an additional 2+ years of job-related experience, or a 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 looking for a prior Fire Control Technician (Submarines) or Sonar Technician (Submarines) with at least 6 years onboard U.S. Navy Submarines to help design, develop and deliver support products for the Common Weapons Launcher (CWL)/Multi Tube Weapons Simulator (MTWS). Ideal candidates should have...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Senior Software Engineer - Active Secret clearance - $5,000 Sign On Bonus
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 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 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. This position is fully on-site in Manassas, VA or Middletown, RI . Responsibilities for this Position This position has a $5,000 sign on bonus.    We are hiring an Advanced Software Engineer.  Help make the technologies, products and services that make a difference. That’s the...
General Dynamics Mission Systems, Inc
Jun 12, 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:  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 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, manage key customer...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Software Engineer - Weapon Launchers & Simulation
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 As a Software Engineer for the Common Weapon Launcher and Multi-Tube Weapon Simulator, you’ll be a member of a cross functional team responsible for designing and developing software supporting the U.S. Navy's platforms within the Tactical.   We encourage you to apply if you have...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Information System Security Officer (ISSO)
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: 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 The Information Assurance Engineer supports the system security design effort, security requirements analysis, and security requirements flow down to the program element. The role involves executing security testing, developing security documentation, and participating in Assessment and Authorization (A&A)...
General Dynamics Mission Systems, Inc
Jun 12, 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 12, 2026
C++ Software Engineer - Active Secret clearance required
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 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 able to work onsite in Manassas, VA. Responsibilities for this Position We are hiring a Software Engineer.  Help make the technologies, products and services that make a difference. That’s the opportunity that’s waiting for you at General Dynamics Mission Systems. We help our nation’s...
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...
General Dynamics Mission Systems, Inc
Jun 11, 2026
Junior Software Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Software Engineering, or Engineering, Science, or Math, plus 1 year of relevant experience; or Master's degree.   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 a software engineer for the SONAR business area, you’ll be a member of a cross functional team responsible for develop software for a next-generation sonar array for future United States Navy submarines.    We encourage you to apply if you have any of these preferred skills or experiences: Java, C++, Python, Linux...
Lockheed Martin
Jun 10, 2026
AI 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 AI Software Engineer where you will be challenged to use your skills in a high-paced / high-visibility team environment. Why Join Us Your Health, Your Wealth, Your Life Joining Lockheed...
Lockheed Martin
Jun 10, 2026
Hardware Engineer - Lead/Architect
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 We are seeking a Hardware Engineer Lead / Architect to drive the design, development, and production of a high density, submarine compatible compute platform. The role will own the full lifecycle—from concept through detailed design, prototyping,...
Lockheed Martin
Jun 10, 2026
Classified Cyber Security Manager
Lockheed Martin Manassas, VA
Description: Lockheed Martin Rotary & Mission Systems (RMS) is a cyber security pioneer, partner, innovator and builder. Our amazing employees are on a mission to make a difference in the world and every single day we use our unique skills and experiences to create, design and build solutions to some of the world’s hardest engineering problems. Do you want to be part of a culture that encourages employees to think big, perform with excellence and build incredible products? We provide the resources, inspiration and focus – if you have the passion and courage to dream big, then we want to build a better tomorrow with you. At Lockheed Martin Rotary & Mission Systems, we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach – and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training and education. Come and experience your future! Classified...
General Dynamics Mission Systems, Inc
Jun 10, 2026
Advanced Information Systems Specialist
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Master's degree, plus 3 years of relevant experience. Bachelor's degree in a specialized area or equivalent relevant experience is required; plus, a minimum of 5 years of relevant experience; or   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 General Dynamics Mission Systems has an immediate opening for a Progeny AI DevOps Lead.  This position provides an opportunity to further advance the cutting-edge technology that supports some of our nation’s core defense/intelligence services and systems.  General Dynamics Mission Systems employees work closely with esteemed customers to...
General Dynamics Mission Systems, Inc
Jun 09, 2026
Experienced Unmanned Aviation 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 a minimum of 8 years of relevant experience; or Master's degree, plus a minimum of 6 years of 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 Responsibilities Provide subject matter expertise in ISR and OWA mission requirements, including environmental constraints, EMI considerations, and operational integration challenges. Assess and articulate the future evolution of UAS platforms and associated payload...
General Dynamics Mission Systems, Inc
Jun 08, 2026
HWT Functional Team Lead - Advanced 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 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 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: The Heavyweight Torpedo (HWT) Functional Team Lead serves as the technical lead and team facilitator for the HWT functional area within the AN/BYG-1 Payload Control System (PCS). This position combines hands-on systems engineering with day-to-day...
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