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5513 security clearance jobs found

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General Dynamics Mission Systems, Inc
Jun 12, 2026
Systems Engineering Co-op - Security Clearance Required
General Dynamics Mission Systems, Inc Scottsdale, AZ
Basic Qualifications Candidates should demonstrate a thorough understanding of engineering technology.  Engineering Interns must be enrolled in an accredited degree program in Computer Engineering, Systems Engineering, Software Engineering, Electrical Engineering, Mechanical Engineering or other related scientific or technical discipline with a preference for a standing of a junior or higher.     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 REPRESENTATIVE DUTIES AND TASKS: Apply your classroom-learned skills to a program supporting the defense of our country. GDMS has an immediate opening...
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
May 23, 2026
Senior Network Security Engineer (Top Secret Clearance)
Lockheed Martin Colorado Springs, CO
Description: What We’re Doing At Lockheed Martin, our Command and Control, Battle Management and Communications (C2BMC) National Team (C2NT) is pioneering the development and integration of cutting-edge technologies to advance the Missile Defense System, safeguarding the United States and its allies. Our collaborative and agile organization operates in a fast-paced environment, driving innovation through tasks such as sensor/weapon integration, algorithm development, user interface development, automated testing, cyber security, enterprise/infrastructure services, and enhancing leading-edge missile defense technologies. The Work Designs, plans, and validates secure network communications systems for the C2BMC program. You develop detailed specifications, schematics, and capacity forecasts; select hardware/software; implement firewalls, switches, routers, and security relevant devices; and conduct rigorous testing. You apply DoW RMF/CSRMC/STIG compliance, produce required IA...
LMI
May 08, 2026
Cybersecurity – Information Systems Security Manager (ISSM) - Clearance Required
LMI Remote, UNAVAILABLE
Overview We’re looking for an Information Systems Security Manager (ISSM) to lead the authorization and continuous compliance of LIGER, an enterprise AI platform for our DHS customer. You’ll own the security management posture for the platform: developing and maintaining the authorization package, driving the Risk Management Framework (RMF) lifecycle, and serving as LIGER’s primary security management interface to cyber leadership. This position requires an active Secret clearance and the ability to obtain a CBP Background Investigation;  U.S. citizenship is required.   This is a senior, accountable role. While the LIGER cyber engineering team handles hands-on implementation, you own the strategy, the artifacts, and the relationship with Authorizing Officials and ISSOs. You’ll translate  DHS security policy into actionable program direction, lead assessment and authorization (A&A) activities, and make sure LIGER reaches and maintains its Authority to...
Lockheed Martin
Mar 25, 2026
Security Representative, Associate Manager (TS Clearance Required)
Lockheed Martin Orlando, FL
Description: Manage the DISS/JVS and Escalation Team within the LMSecurity Operations Center (LMSOC). This role has enterprise wide responsibility for assisting with the management of security clearance operations and processing for the corporation; and for leading security professionals working within Lockheed Martin's consolidated Security Clearance Center. The selected candidate will also serve as Lockheed Martin's primary liaison/interface with the United States Government regarding personnel security clearance matters and be responsible for the following: -Collaborate in a team environment with multiple security disciplines. -Interpret and implement government security requirements; and understand government methodologies, practices and technologies with an emphasis on personnel security. -Identify and support internal and external customer needs and incorporate them into business processes. The selected candidate will also be responsible for, but not limited to:...
LMI
Feb 06, 2026
ISSO - Information System Security Officer - Clearance Required
LMI Colorado Springs, CO
Overview LMI is seeking a highly motivated mid-level Information System Security Officer (ISSO) looking for hands-on experience and opportunity for career growth under direction of the Chief Information Security Officer.   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 sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and...
Lockheed Martin
Jun 21, 2026
Subcontract Administrator
Lockheed Martin Sunnyvale, CA
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. What is the mission? 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. What does this role look like? Supply Chain’s vision is to enable customer and mission success through supply chain strategies and execution that deliver superior operational program performance and create...
Lockheed Martin
Jun 20, 2026
Senior Administrative Assistant
Lockheed Martin Courtland, AL
Description: Company Mission & Program Overview 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. Key Duties & Responsibilities Are you...
Lockheed Martin
Jun 20, 2026
Black Hawk Business Development – Army Rapid Capability Upgrades
Lockheed Martin Huntsville, AL
Description: What We’re Doing: Strategy and Business Development (S&BD) position for the Sikorsky Aircraft Corporation (SAC) Army and Air Force Systems organization, with a focus on working with our US Army customer on ways to improve the Black Hawk, with rapid capability insertion and upgrades/modifications to UH-60M and UH-60L variants. The Work: Duties will include but are not limited to: • Create, maintain, and expand relationships with US Army, government labs, acquisition customers, and warfighters to gain a detailed understanding of their near-, mid-, and long-term capability gaps to inform capability and capability roadmap solutions. • Develop a deep knowledge of customer desires, and act as our external customers’ advocate within LM Sikorsky. • Identify, qualify, pursue, and capture new business opportunities that advance next generation Lockheed Martin (LM) technology and increase Army warfighting capability by integrating emerging capabilities and modernizing...
Lockheed Martin
Jun 20, 2026
General Counsel
Lockheed Martin Bethesda, MD
Description: At Lockheed Martin, we are passionate about innovation and integrity. We believe that by applying the highest standards of business ethics and forward-thinking, everything is within our capacity – and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, education, and background. Do you want to be part of an environment that encourages and supports employees to think big, perform with quality and build incredible products? We provide the resources, encouragement, and focus - if you have the resourcefulness and courage to work hard, then we want to build a better tomorrow with you. Come and experience your future! This position will have primary legal responsibility as an attorney for the EMC2 and UMS market segments within MIC2, which is part of Rotary and Mission Systems. The successful candidate will have experience working with various domestic and international government agencies, the Department of Defense, and the U.S. Department...
Lockheed Martin
Jun 20, 2026
Software Engineer - Early Career
Lockheed Martin Fort Worth, TX
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 Aeronautics is seeking a full-time Software Engineer Early Career. In this role, you will be collaborating in object oriented programming, working in an agile software development, with the option of UI/UX software development. The successful candidate will...
Lockheed Martin
Jun 20, 2026
Responsible Systems Engineer / Systems Integrator
Lockheed Martin Littleton, CO
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 is a pioneer, partner, innovator and builder. Our amazing men and women are on a mission to make a difference in the world and every single day we use our unique skills, talents and experiences to design and build solutions to some of the world’s hardest engineering problems. Do you want to be part of a culture that inspires employees to envision the impossible, 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. Lockheed Martin (LM) is looking for a Systems Integrator/ Responsible Systems Engineer (SI/RSE) to work closely with the Chief Engineer team on a development program team within the Space Protection Programs Portfolio in Denver, Colorado. As a System Integrator/SI RSE , you...
Lockheed Martin
Jun 20, 2026
System Requirements, Test and Verification Stf
Lockheed Martin Littleton, CO
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. This position will be a key technical lead shaping the test and verification program for...
LMI
Jun 20, 2026
Product Manager & User Success, Supply Chain Analytics
LMI Tysons, VA
Overview LMI is seeking a Product Manager to lead strategy, execution, stakeholder alignment, and user success activities for an enterprise Supply Chain Risk Management platform that supports supply chain visibility, analytics, and decision support across complex organizations. This role is responsible for translating mission and user needs into product direction, managing priorities across data, development, and analytic workstreams, and ensuring the platform delivers scalable capabilities that support both enterprise objectives and customer-specific use cases. The ideal candidate brings deep experience delivering mission software through balanced agile teams in government or defense environments, with the technical judgment to guide modern platform development from concept through production deployment.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and...
LMI
Jun 20, 2026
Business Operations Lead (CBP)
LMI Washington, DC
Overview LMI is seeking a skilled Business Operations Lead to support a Customs and Border Protection (CBP) customer . Successful LMI Business Operations Lead serves as the primary integrator for business operations across the Integrated Surveillance Towers (IST) portfolio. The position is responsible for synchronizing planning, programming, budgeting, and acquisition support to enable successful pre deployment, deployment, recapitalization, and sustainment of autonomous surveillance towers. This telework position will require at least one day per month on client site in Washington, DC.   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...
Odyssey Systems Consulting Group
Jun 19, 2026
Full time
Senior Security Assistant
Odyssey Systems Consulting Group Oklahoma City, OK
Position Summary Odyssey has an exciting opportunity for a Senior Security Assistant providing support to the Air Force Life Cycle Management Center, Intelligence, Surveillance, Reconnaissance and Special Operations Directorate (AFLCMC/HB).   The Air Force Program Executive Office for Intelligence, Surveillance, Reconnaissance and Special Operations (PEO ISR SOF) manages the modernization, development, testing, production, fielding, and sustainment of over 200 programs supporting the United States Air Force and allied partners worldwide. This position supports the AWACS (E-3), Wedgetail (E-7), and International Airborne Battle Management Command and Control programs within the AFLCMC/WIW Division.   This is a full time position at Tinker AFB, OK. Responsibilities The selected candidate will provide comprehensive personnel, physical, industrial, information, and Special Security Office (SSO) support to the E-7 Program...
Lockheed Martin
Jun 19, 2026
Systems Security Architect- Owego, NY - SME
Lockheed Martin Owego, NY
Description: WHAT WE’RE DOING Our SEMS (Sensors, Effectors & Mission Systems) organization within Rotary and Mission Systems (RMS) creates cutting‑edge anti‑tamper, program‑protection, and secure‑hardware solutions for government customers. From radar and electronic warfare to cyber‑resilient platforms, we safeguard mission‑critical assets against sophisticated threats. Learn more about the RMS Business Area THE WORK In this important role you will: - Define system functionality, states, and modes while specifying anti‑tamper design features. - Lead anti‑tamper subsystem design - requirements development, trade studies, implementation, maturation, and threat‑analysis counter‑measure planning. - Generate and maintain Protection Plans and related artifacts. - Communicate and coordinate with program leadership, external customers, and independent government review teams. - Create information‑handling plans for Program Protection and develop test plans...
Lockheed Martin
Jun 19, 2026
Flight Sciences Systems Engineer
Lockheed Martin Huntsville, AL
Description: Lockheed Martin Space designs and operates spacecraft, launch‑vehicle avionics, and scientific payloads that must execute precise trajectories, maintain stable attitudes, and perform autonomous maneuvers in the space environment. The Flight‑Sciences Systems Engineer is the technical bridge between flight‑dynamics theory and the hardware/software that implements it. You will develop the models, algorithms, and analysis tools that predict vehicle behavior, generate guidance commands, and certify flight‑software performance for a variety of missions (e.g., orbit insertion, lunar descent, formation‑flying constellations, re‑entry). We are hiring levels 2-5. This requisition is used to find talent for our hiring needs across multiple programs. We will be reviewing those that apply to see if they may meet the needs of the business. If so, we will be reaching out to screen. By applying for this role you will be considered for enterprise wide opportunities within...
Lockheed Martin
Jun 19, 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...
Lockheed Martin
Jun 19, 2026
Mult Function Info Systems, MPE (Level 2) (Luke, AFB)
Lockheed Martin AZ
Description: Join the Lockheed Martin Aeronautics Field Sustainment Team. Our customers include both the U.S. Military and international governments and organizations. Our global reach and technical depth offer an endless amount of opportunities for up-and-coming Autonomic Logistics Information Systems (ALIS) or Mission Planning Environment (MPE) professionals seeking a place to make their mark – or for seasoned Autonomic Logistics Information Systems (ALIS) or Mission Lockheed Martin Proprietary Information Lockheed Martin Proprietary Information Planning Environment (MPE) professionals seeking their next career challenge. ALIS/MPE Administrators directly support JSF operations by assuring the integrity of data stored within the system by maintaining the internal databases and applications. The successful candidate will serve as the point of contact in customer discussions during the flight and evaluation activities while maintaining system functionality. Candidate must be able...
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