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59 government jobs found in Littleton

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Lockheed Martin
Jan 13, 2026
Model-Based Systems Engineer
Lockheed Martin Littleton, CO, USA
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. Fleet Ballistic Missiles (FBM) is one of Lockheed Martin’s outstanding Lines of...
Lockheed Martin
Jan 13, 2026
Model-Based Systems Engineer
Lockheed Martin Littleton, CO, USA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space OVERVIEW: Fleet Ballistic Missiles (FBM) is one of Lockheed Martin’s outstanding Lines of Businesses that prioritizes partnership, integrity, and reliability. The Life Extension 2 team is an organization within the greater FBM program which supports the development of the Next Generation System by developing concepts, researching, and maturing technologies to support the development of the next FBM Missile System. The FBM Program is experiencing significant growth and we need your expertise to deliver amazing new technologies to our customers while maintaining the technical requirements of the strategic deterrence. Learn about the Trident II D5 Fleet Ballistic Missile. As a Systems Engineer for Model-Based System Engineering (MBSE) you will lead and employ MBSE approaches to developing Systems Engineering products using SysML and MBSE tools to capture, maintain, and visualize...
Lockheed Martin
Jan 13, 2026
Software Engineer
Lockheed Martin Littleton, CO, USA
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. 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...
Lockheed Martin
Jan 10, 2026
Software Engineer, Level 2 - Clearance Required
Lockheed Martin Littleton, CO, USA
Description: Take your career to a new level and work at an extraordinary company in Littleton CO 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....
Lockheed Martin
Jan 09, 2026
Mid-Career Information System Security Officer
Lockheed Martin Littleton, CO, USA
Description: WHAT WE’RE DOING C4ISR: Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance Across air, land, sea and space, thousands of sensors onboard manned and unmanned military platforms are collecting huge amounts of data. These ISR systems task, collect, process, analyze, fuse and disseminate the most mission-critical information. The threats our customers face require us to deliver innovation at scale, and with greater agility than ever before, to address their toughest challenges and ensure they stay ahead of ready. THE WORK In this important role you will: • Oversee day-to-day information system security operations including auditing the IS, hardware, and software implementations and RMF package authorizations. • Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF). • Upkeep, monitor, analyze, and respond to network and security...
Lockheed Martin
Jan 09, 2026
Mid-Career Cybersecurity Technologist
Lockheed Martin Littleton, CO, USA
Description: WHAT WE’RE DOING Are you passionate about cybersecurity, automation, and risk governance? Lockheed Martin recognizes the challenges we face today and the need to embrace the convergence of these disciplines to transform ourselves for tomorrow. This transformation will enable Lockheed Martin to provide more autonomous and continuous cyber support for our classified environments. The Rotary and Mission Systems (RMS) Classified Cyber Security organization is seeking a Classified Cyber Security professional to deliver automated, sustainable, and consistent cyber products and services for the RMS Business Area, that enable the delivery of 21st-century security services to our classified programs. THE WORK The selected individual will serve as a Classified Cyber Security Technologist Sr. In this role, the selected individual will collaborate with a team of cybersecurity professionals and work closely with the Information System Security Manager(s) to implement and...
Lockheed Martin
Jan 08, 2026
RF Engineer Senior Staff (Level V) - TS/SCI clearance
Lockheed Martin Littleton, CO, USA
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. Lockheed Martin Space is seeking an experienced RF Engineer to join our team in Littleton, CO! In this role, you will support the Space Protection Program by...
Lockheed Martin
Jan 08, 2026
Integration and Test Engineer
Lockheed Martin Littleton, CO, USA
Description: Job Description : What We’re Doing: At Lockheed Martin Rotary and Mission Systems (RMS), 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. We are a dynamic team on a recurring multi- year, critical program seeking a Software Engineer who likes to be challenged and solve problems. Who We Are: Intelligence, Surveillance and Reconnaissance (ISR): Harnessing the power of data collection and analysis across air, land, sea and space, thousands of sensors onboard manned and unmanned military platforms are collecting huge amounts of data. These ISR systems task, collect, process, analyze, fuse and disseminate the most mission-critical information. What You Will Be Doing As a Integration and Test Engineer you will own the maintenance, installation, and...
Lockheed Martin
Jan 08, 2026
Integration and Test Engineer
Lockheed Martin Littleton, CO, USA
Description: Job Description : What We’re Doing: At Lockheed Martin Rotary and Mission Systems (RMS), 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. We are a dynamic team on a recurring multi- year, critical program seeking a Software Engineer who likes to be challenged and solve problems. Who We Are: Intelligence, Surveillance and Reconnaissance (ISR): Harnessing the power of data collection and analysis across air, land, sea and space, thousands of sensors onboard manned and unmanned military platforms are collecting huge amounts of data. These ISR systems task, collect, process, analyze, fuse and disseminate the most mission-critical information. What You Will Be Doing As a Integration and Test Engineer you will own the maintenance, installation, and...
Lockheed Martin
Jan 08, 2026
Cyber Security Engineer Technical Lead
Lockheed Martin Littleton, CO, USA
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? This new and emerging need is for a Security Operations Information System Security Manager (ISSM) on the SDA Transport Layer T1contract. The ideal candidate will work directly with the...
Lockheed Martin
Jan 08, 2026
RF Engineer (Level II) - TS/SCI clearance
Lockheed Martin Littleton, CO, USA
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, in-vest, 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 work-force 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 Lockheed Martin Space is seeking an RF Engineer to join our team in Littleton, CO! As...
Lockheed Martin
Jan 07, 2026
Guidance, Navigation & Control Engineer, Senior (Level III)
Lockheed Martin Littleton, CO, USA
Description: About Lockheed Martin Space 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, in-vest, 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, fo-cusing 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 work-force 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 About the Team For over 60 years, the Fleet Ballistic...
Lockheed Martin
Jan 07, 2026
Systems Engineering R&V Lead
Lockheed Martin Littleton, CO, USA
Description: "Ahead of Ready" At Lockheed Martin, we are shaping the future of space exploration and defense. As a leader in the new space age, we are known for our pioneering spirit, collaborative partnerships, innovative thinking, and commitment to building remarkable products. Our team is dedicated to making a positive impact on the world by leveraging our unique skills and experiences to tackle complex engineering challenges. We are passionate about delivering exceptional results and creating a better tomorrow. Lockheed Martin seeks a highly motivated Systems Engineering R&V Lead to join the Global Security team in Denver, Colorado. The Global Security Systems Engineering R&V Lead plays a vital role as they work with the customer to define and verify full system capabilities by creating Requirements, Verification plans, Interface Control Documents, and Test Requirements using Cameo and DOORS. The Systems Engineer in this role will need to have a System of...
Lockheed Martin
Jan 07, 2026
Contractor Special Security Officer, Business Development
Lockheed Martin Littleton, CO, USA
Description: This position requires TS/SCI clearance. The Business Development Security Representative will spearhead new business pursuits for Lockheed Martin’s Space Special Access Programs (SAP). Partnering with enterprise strategy teams, this role aligns capture priorities across the corporation, blends visionary thinking with strong business development expertise, and orchestrates complex multi customer engagements while ensuring rigorous security compliance. Responsibilities include: • Lead SAP new business capture efforts; identify and qualify opportunities with U.S. Government customers. • Serves as a Contractor Special Security Officer (CSSO). • Works closely with U. S. Government customers to seek contract execution approvals and seeks security rulings or deviations. • Collaborate with corporate strategy groups to synchronize pursuit priorities and market positioning. • Draft and present business proposals, security rulings, and deviation requests to customers and...
Lockheed Martin
Jan 06, 2026
Systems Engineer Sr
Lockheed Martin Littleton, CO, USA
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 Erebus Program is a newly awarded 7-year effort that delivers cutting-edge...
Lockheed Martin
Jan 06, 2026
Systems Engineer Staff
Lockheed Martin Littleton, CO, USA
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 Erebus Program is a newly awarded 7-year effort that delivers cutting-edge...
Lockheed Martin
Jan 06, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin Littleton, CO, USA
Description: TS/SCI clearance required with ability to receive Poly within 6 months. The Cybersecurity Specialist will partner with the security team, program, and government customers to perform as an Information Systems Security Officer (ISSO) for Special Programs located at the LM Waterton facility in Littleton, CO. In this role you will: - Oversee day-to-day information system security operations including hardware and software implementations. - Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF). - Auditing of the IS. - Upkeep, monitor, analyze, and respond to network and security events. - Document compliance actions within the approved automated compliance tracking system or develop a plan of actions and milestones (POA&M) with the Information Systems Security Manager (ISSM) to address non-compliance in the allotted time frame. - Ensure systems are operated,...
Lockheed Martin
Jan 06, 2026
Senior Software Engineer - Clearance Required
Lockheed Martin Littleton, CO, USA
Description: Take your career to a new level and work at an extraordinary company in Littleton CO 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....
Lockheed Martin
Dec 20, 2025
Contractor Program Security Officer - CPSO
Lockheed Martin Littleton, CO, USA
Description: Clearance Requirement: Active TS/SCI with willingness to complete a Polygraph The Security Representative Senior supports the Global Security–Program Security organization in executing high-priority national security missions. This role is responsible for implementing and overseeing SCI security policies, procedures, and SOPs in alignment with organizational and government requirements. The position will serve as a key security interface with internal and external Director-level stakeholders to ensure mission success, compliance, and risk mitigation. Key Responsibilities • Administer SCI security policy, PERSEC, Physical Security, OPSEC, and Program Protection programs. • Develop, implement, and oversee SOPs supporting secure operational environments. • Coordinate with senior leadership to enable strategic mission objectives and program protection requirements. • Support incident response, reporting, investigations, and corrective actions. • Maintain readiness to...
Lockheed Martin
Dec 20, 2025
Contractor Program Security Officer - CPSO
Lockheed Martin Littleton, CO, USA
Description: Clearance Requirement: Active TS/SCI with willingness to complete a Polygraph The Security Representative Senior supports the Global Security–Program Security organization in executing high-priority national security missions. This role is responsible for implementing and overseeing SCI security policies, procedures, and SOPs in alignment with organizational and government requirements. The position will serve as a key security interface with internal and external Director-level stakeholders to ensure mission success, compliance, and risk mitigation. Key Responsibilities • Administer SCI security policy, PERSEC, Physical Security, OPSEC, and Program Protection programs. • Develop, implement, and oversee SOPs supporting secure operational environments. • Coordinate with senior leadership to enable strategic mission objectives and program protection requirements. • Support incident response, reporting, investigations, and corrective actions. • Maintain readiness to...
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