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205 security clearance jobs found in Manassas, VA

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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...
General Dynamics Mission Systems, Inc
Jun 17, 2026
Entry Level Software Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science/Engineering fields. Linux experience preferred.   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 Surface Cybersecurity Toolkit(CSTK) projects, you’ll be a member of a cross functional team responsible for designing, developing, integrating and testing of COTS/GOTS cybersecurity software supporting the U.S. Navy's Surface Combat System and Elements.   We encourage you to apply if you have any of these preferred skills or...
General Dynamics Mission Systems, Inc
Jun 17, 2026
Program Lab Facilities Coordinator
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 5+ years of job-related experience, or a Master's degree with 3+ 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 Put your engineering talent to the ultimate test. At General Dynamics Mission Systems, we create the technologies, products and services that help our service members, intelligence analysts and first responders keep our nation safe. The work we do is so advanced our...
General Dynamics Mission Systems, Inc
Jun 15, 2026
Senior Network Cyber 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 2 years of relevant experience; or Master's degree, plus 6 months of relevant 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 ROLE AND POSITION OBJECTIVES: As a Senior 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...
General Dynamics Mission Systems, Inc
Jun 15, 2026
Senior DevOps/Platform Engineer
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 a senior software engineer for TCS, you’ll be a member of a cross functional team responsible for developing software for the US Navy. This team is responsible for software development and resolution of integration issues, both in a laboratory...
General Dynamics Mission Systems, Inc
Jun 15, 2026
Sr Advanced Configuration Management Associate
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Business, a technical field or equivalent experience plus a minimum of 2 years related experience is required. CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required within a reasonable period of time. 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 responsibility is career-defining. So is the opportunity. At General Dynamics Mission Systems, we invent the technologies, products and services, that help our nation’s heroes keep our nation safe. The work is so advanced, our teams regularly redefine innovation and excellence for the world. If you’re looking for a challenge, you’ve just found it. We apply advanced...
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++...
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...
Lockheed Martin
Jun 06, 2026
Integrated Program Planner - Level 4
Lockheed Martin Manassas, VA
Description: Please Note: This role is expected to be full time on site in a classified environment. Some tele-work may be permitted based on program requirements. This role will be based in Manassas, VA. Any candidates must be located in the area or willing to relocate. WHAT WE’RE DOING At Lockheed Martin Rotary and Mission Systems, we're on a mission to drive innovation and uphold the highest standards of business ethics. We believe that by pushing the boundaries of visionary thinking, we can achieve exceptional results. As a Lockheed Martin employee, you'll have the opportunity to make a meaningful impact while working in an environment that values integrity and excellence. THE WORK This position will lead the development of Integrated Master Schedules and Integrated Master Plans. You should possess extensive experience with Planning and scheduling and have demonstrated the ability to work effectively in a leadership role. You will provide direct support to the Program...
Lockheed Martin
Jun 04, 2026
Senior DevSecOps 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 and Mission Systems is seeking a Senior DevSecOps Engineer in Manassas, VA. Who you are Key Responsibilities: • Participate in a cross‑functional team to evaluate a large, complex legacy code base, assess the current CI/CD...
Lockheed Martin
Jun 04, 2026
Kubernetes Software Developer
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 Kubernetes Software Developer. In this role, you will perform tasks supporting Navy programs. The successful candidate will have experience with Kubernetes, Bash and/or Python, and...
Lockheed Martin
Jun 04, 2026
Kubernetes Software Developer and Integrator
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 Kubernetes Software Developer and Integrator. In this role, you will perform tasks supporting Navy programs. The successful candidate will have experience with Kubernetes, Python, and...
Lockheed Martin
Jun 04, 2026
Software Engineer – Early Career
Lockheed Martin Manassas, VA
Description: At Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. 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 Rotary and Mission Systems in Manassas, VA is seeking a full-time Early Career Software Engineer. In this role, you will perform software development tasks in support of Navy Programs. The successful candidate will have experience and/or knowledge of...
Lockheed Martin
Jun 04, 2026
Software Engineer-Early Career
Lockheed Martin Manassas, VA
Description: At Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. 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. The Work Lockheed Martin Rotary & Mission Systems is seeking a full-time Early Career 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...
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