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127 systems software engineer jobs found in Littleton

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Lockheed Martin
Jun 24, 2026
Software Systems Testing Engineer Sr
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.     Space Protection Programs (SPP) is seeking a Software Systems Test...
Lockheed Martin
Jun 24, 2026
Software Systems Testing Engineer
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.     Space Protection Programs (SPP) is seeking a Software Systems Test...
Lockheed Martin
Jun 24, 2026
Software Systems Testing Engineer
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.     Space Protection Programs (SPP) is seeking a Software Systems Test...
Lockheed Martin
Jul 03, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin Littleton, CO
Description: This position requires ability to obtain and maintain Secret clearance. Must be a U.S. Citizen. This position will perform duties as an Information Systems Security Officer at the Lockheed Martin Space facility in Littleton, Colorado. Candidates will typically have a Bachelor's Degree and 1+ years of experience. The work that ISSOs do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones - this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline. - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Support day-to-day information system security operations including hardware and software implementations. - Carry out technical security administration of IS in accordance with internal LM and customer cybersecurity requirements,...
Lockheed Martin
Jul 03, 2026
Embedded Flight Software Test Engineer Staff
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. Remote Sensing is seeking an experienced Software Test Engineer, responsible for...
Lockheed Martin
Jul 02, 2026
Systems Engineer Sr - System Safety Engineer
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 day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. Lockheed Martin Space has an immediate opportunity for a mid-career System Safety Engineer at our Denver, CO. facility. If you have an interest in working for a company that develops national defense systems, come and be a part of our System Safety Team. At Lockheed Martin Space, we are driven by innovation and integrity. We believe...
Lockheed Martin
Jul 02, 2026
Software Integration/Test Engineer
Lockheed Martin Littleton, CO
Description: As a Software Integration/Test Engineer for Assembly Test Launch Operations (ATLO) Test Labs and Services, you will: • Provide Operations & Maintenance (O&M) Software support to include rebuilding machines, patching, debugging, and reconfiguring existing Automated Test Systems. • Testing new software developed by the larger team as an independent reviewer and tester. • Author Acceptance Test Procedures (ATPs), Engineering Functional Checkout Procedures (EFCPs), and Standard Operating Procedures (SOPs) for deployed software. • Collaborate with Systems, mechanical, electrical, software, and test engineers across labs and programs to develop, test, and validate new system capabilities to ensure a complete working solution. • Develop 3D CAD models and 2D drawings as part of integrated design solutions • Assist technicians during system assembly, checkout, and validation and lead troubleshooting efforts. • Must be interested and have experience working with...
Lockheed Martin
Jul 02, 2026
ElectroMechanical Harness Lead, Asc Manager
Lockheed Martin Littleton, CO
Description: The Fleet Ballistic Missile Avionics team is seeking an experienced Electromechanical Harness Engineer who will lead a team of engineers in the development of 3D concept models of space flight avionics Cable and Harnessing and ultimately advance them for flight use. Location: This position does not support teleworking ; you will be located near our Lockheed Martin Space facility in: Littleton or Englewood CO and be expected to work a flexible 9x80 schedule in the office full-time. What does this role look like? • Lead trade studies on cable and harness design approaches and provide technical data for informal and formal design review documentation and presentations. • Provide leadership on a fast paced team from requirements through development and production. • Be responsible to assure coordination between functional groups during the product development life cycle. • Communicate technical status and issues internally to program leadership, technical...
Lockheed Martin
Jul 02, 2026
Program Management Manager
Lockheed Martin Littleton, CO
Description: We are seeking a highly skilled and motivated Program Manager (PM) to join the Accelerated Mission Demonstrations (AMD) team within IGNITE. This role will initially be responsible for the Radar Pathfinder (RPF) program within AMD’s on-orbit demo mission portfolio. Radar Pathfinder is an LM400-class remote sensing demonstration mission, funded primarily with Independent Research and Development (IRAD) to advance LM Space’s strategic offering in key mission areas by demonstrating salient bus and payload capabilities. RPF is currently in the Space Vehicle Assembly, Integration, and Test (AI&T) phase, with launch and operations to come. This position is responsible for all aspects of the program throughout the entire program life cycle. Accelerated Mission Demonstrations is a directorate within LM Space’s IGNITE organization that includes a portfolio of on-orbit demonstration missions. AMD partners with the lines of business (LOBs) and strategy and business...
Lockheed Martin
Jul 02, 2026
Electromagnetic Compatibility Engineer
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. As a Systems Engineer, Electromagnetic Compatibility (EMC/E3) , you will: • Work in a...
Lockheed Martin
Jul 02, 2026
Sr. Staff Chief Engineer
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. As a member of the Transport, Tracking & Warning (TTW) SDA Portfolio Chief...
Lockheed Martin
Jul 02, 2026
Systems Engineer - Clearance Required
Lockheed Martin Littleton, CO
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. THE WORK The Lockheed Martin MOATS program is seeking a talented level 2 Systems Engineer with an active Top Secret security clearance to work from our Littleton, CO location. The MOATS contract includes sustainment and anomaly support to ongoing Space related operations, obsolescence and...
Lockheed Martin
Jul 02, 2026
Space Vehicle Electrical Test Engineer Sr - CLEARANCE REQUIRED
Lockheed Martin Littleton, CO
Description: Must have an Active Top Secret w/ Poly clearance The coolest jobs on this planet… or any other… are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Do you want to join a team where employees envision the impossible, perform with excellence and build incredible products? What are Space Protection Programs (SPP)? When you join SPP you will be part of one of the most innovative and fastest moving organizations in Space. Come help build end-to-end Space Security Systems and utilize our cutting-edge capabilities to assure the security and health of our nation’s space assets. We push the boundary of what gets done in space. Come be one of the people playing a critical role to defeat the enemies of freedom. We are...
Lockheed Martin
Jul 02, 2026
Space Vehicle Electrical Test Engineer - CLEARANCE REQUIRED
Lockheed Martin Littleton, CO
Description: Must have an Active Top Secret clearance with ability to obtain TS/SCI w/ Poly. The coolest jobs on this planet… or any other… are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Do you want to join a team where employees envision the impossible, perform with excellence and build incredible products? What are Space Protection Programs (SPP)? When you join SPP you will be part of one of the most innovative and fastest moving organizations in Space. Come help build end-to-end Space Security Systems and utilize our cutting-edge capabilities to assure the security and health of our nation’s space assets. We push the boundary of what gets done in space. Come be one of the people playing a critical role to defeat the...
Lockheed Martin
Jul 02, 2026
System Integration Test Engineer Stf - Mechanism/Environmental
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 people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. Every day, our 115,000 employees come to work with one focus – our customers’ missions. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience, and precision. They’re dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are...
Lockheed Martin
Jul 02, 2026
Senior Orion Systems Engineer
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. Lockheed Martin Space is seeking a full-time Orion Senior Systems Engineer to be a part of...
Lockheed Martin
Jul 02, 2026
Senior Orion Systems Engineer
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. Lockheed Martin Space is seeking a full-time Orion Senior Systems Engineer to be a part of...
Lockheed Martin
Jul 02, 2026
System Simulation Engineer
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. For over 70 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s...
Lockheed Martin
Jul 02, 2026
Space Vehicle Test Engineer Sr
Lockheed Martin Littleton, CO
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Do you want to join a team where employees envision the impossible, perform with excellence and build incredible products? What are Space Protection Programs (SPP)? When you join SPP you will be part of one of the most innovative and fastest moving organizations in Space. Come help build end-to-end Space Security Systems and utilize our cutting-edge capabilities to assure the security and health of our nation’s space assets. We push the boundary of what gets done in space. Come be one of the people playing a critical role to defeat the enemies of freedom. We are seeking a Space Vehicle Test Engineer to work within the...
Lockheed Martin
Jul 02, 2026
Embedded Systems Integration & Test Engineer
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. The Embedded Systems Integration & Test Engineer will support and execute...
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