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129 level 3 software engineer jobs found

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Lockheed Martin level 3 software engineer Colorado
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Lockheed Martin
May 29, 2026
Level 3 Software Engineer
Lockheed Martin Longmont, 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. And we’re reimagining how space can connect us, ensuring security and prosperity. 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...
Lockheed Martin
May 29, 2026
Level 3 Software Engineer
Lockheed Martin Longmont, 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. And we’re reimagining how space can connect us, ensuring security and prosperity. 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...
Lockheed Martin
Jun 02, 2026
Level 3 Software Engineer
Lockheed Martin Longmont, 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. And we’re reimagining how space can connect us, ensuring security and prosperity. 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...
Lockheed Martin
Jun 02, 2026
Senior Software Engineer, Level 3
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 is seeking an experienced Software Engineer who can guide a...
Lockheed Martin
Jun 02, 2026
Level 3 - Software Quality Engineer, Sr.
Lockheed Martin Littleton, CO
Description: This position requires Active Top Secret security clearance with ability to obtain SCI access. 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 Software Quality Engineer responsibilities include: • Independent evaluation of software processes and products and their conformity to standards, models, and software engineering program-defined processes • Ensuring quality is built into program processes and products by checking for completeness, consistency, correctness, and conformance throughout the entire software development life cycle and maintenance activities to determine whether the program's objectives have been satisfied and if continuous improvement is needed • Developing, monitoring, measuring, and analyzing software metrics...
Lockheed Martin
May 29, 2026
Java Software Engineer - Space Mission Applications - Level 3
Lockheed Martin Colorado Springs, CO
Description: Protecting what matters most is the mission that matters most. 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. We are looking for talented...
Lockheed Martin
May 01, 2026
Senior Software Engineer, Level 3 - Embedded - Clearance Required
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 is seeking an experienced Software Engineer who can guide a...
Lockheed Martin
Jun 24, 2026
C2BMC Training Lead - TS/SCI
Lockheed Martin Colorado Springs, CO
Description: What We’re Doing We're working on the cutting edge of defense technology, developing advanced solutions to address some of the most complex and mission-critical challenges in national security. Our focus is on enabling faster, smarter decision-making through innovation in tracking, sensor integration, and battle management systems. The Work The C2BMC Training Lead is responsible for leading the C2BMC Training Team supporting both Regional and Global Training activities. Will represent the C2BMC National Team in the user community, interact across C2BMC program and with the MDA customer to prioritize and schedule user training within contractual requirements. Responsible for creating training materials. Responsible training the end users in software application operations and missile defense C2 operations processes for C2BMC required for fielding the systems at Regional or Combatant Command in a multi-contractor team environment. Interface with National Team...
Lockheed Martin
Jun 24, 2026
Systems Engineer - System Architecture/CONOPS
Lockheed Martin Highlands Ranch, 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. OVERVIEW: 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. What does this role look like? Lockheed Martin seeks a talented...
Lockheed Martin
Jun 24, 2026
Requirements and Verification Systems Engineer
Lockheed Martin Highlands Ranch, 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. OVERVIEW: 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. What does this role look like? Lockheed Martin seeks a talented...
Lockheed Martin
Jun 24, 2026
Software Engineer – Secret Clearance
Lockheed Martin Colorado Springs, CO
Description: What We're Doing Our Team, the Command and Control, Battle Management and Communications (C2BMC) Experimentation Lab (X-LAB) is a very fast paced and dynamic environment. It is engineering, developing and integrating new capability for the Missile Defense System that currently protects the United States and its allies. The team consists of many small agile teams that work together in a fast-paced and dynamic environment. Our team is also, responsible for tasks such as Sensor/Weapon Integration, Algorithm Development, User Interface Development, Automated Testing, Cyber Security and enhancing other critical, leading-edge missile defense technologies. What You Will Be Doing We are seeking a detail-oriented and highly motivated mid-level software engineer to join our team in Colorado Springs to develop and test innovative solutions in support of X-Lab projects and experiments. Please Note: • This position requires a government security clearance at the Secret...
Lockheed Martin
Jun 24, 2026
Test Engineer Associate - Secret Clearance
Lockheed Martin Colorado Springs, CO
Description: What We’re Doing Lockheed Martin is developing innovative solutions to meet the evolving needs of our customers. As a leader in the defense and aerospace industry, we are committed to delivering high-quality products that exceed expectations. Our team is working on cutting-edge projects that require rigorous testing and validation to ensure product functionality and reliability. The Work As a Test Engineer, you will play a critical role in our team's success. Your primary responsibilities will include: •Developing test cases and test procedures to verify product functionality •Collaborating with cross-functional teams to identify and prioritize testing requirements •Utilizing your expertise in Linux, test case architectures, run log analysis, and bash scripting to design and execute comprehensive testing protocols •Analyzing test results and identifying areas for improvement Who We Are Lockheed Martin is a global leader in the design, development, and...
Lockheed Martin
Jun 24, 2026
Software Engineer Associate (Secret Clearance)
Lockheed Martin Colorado Springs, CO
Description: What We’re Doing Our team at Lockheed Martin, is dedicated to engineering, developing, and integrating new capabilities for the Missile Defense System that protects the United States and its allies. While we are part of a large organization, we operate within smaller, agile teams in a fast-paced, dynamic environment. Our responsibilities include Sensor/Weapon Integration, Algorithm Development, User Interface Development, Automated Testing, Cyber Security, and enhancing critical missile defense technologies. The Work Lockheed Martin is seeking a software engineer that will thrive in a fast paced team environment in the design, development, and testing of software applications. Under minimal direction, provides specialized expertise within multiple systems, software disciplines, as well as general knowledge of related disciplines, applications implications, and customer areas. Common responsibilities of a software engineer on the agile development teams include: •...
Lockheed Martin
Jun 24, 2026
Sr. Systems Engineer - System Integration (Mass)
Lockheed Martin Highlands Ranch, 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. Working in the space industry means turning humanity’s wildest dreams into tangible...
Lockheed Martin
Jun 24, 2026
Project Engineer/Control Account Manager With clearance
Lockheed Martin Colorado Springs, CO
Description: Who We Are: At Lockheed Martin, we believe that by applying the highest standards of business ethics and forward-thinking, everything is within our reach – and yours as a Lockheed Martin employee. We value your unique skills and expertise, and we aim to give back continuously by offering a wide variety of benefits and amenities to help our employees live flexible, balanced, and fulfilling lives at, and outside of, work. What We’re Doing: Our Team, the Command and Control, Battle Management and Communications (C2BMC) Regional team, is constantly engineering, developing and integrating new capabilities for the U.S. Missile Defense System. protecting both the United States and its allies. This large, fast paced team, is composed of many small agile teams working together dynamic environment with a common mission to develop and deploy leading-edge missile defense technologies. The Work: The selected candidate will report to the Regional Applications Engineering Project...
Lockheed Martin
Jun 24, 2026
Software Engineer (E4_CO)
Lockheed Martin Littleton, CO
Description: WHO WE ARE The Skunk Works (Lockheed Martin Advanced Development Programs) is looking for world-class talent in Software Engineering to be a part of a team that will carry on our 80-year tradition-making history in advanced aircraft development. The vehicle management software team writes software for a wide range of aircraft subsystems that make an airplane fly. We are a highly innovative fast paced team working developing modular and reusable software to support both our current platforms and the aircraft of the future. WHAT’S IN IT FOR YOU 3-day weekend every weekend! 4-10 Mon-Thursday option + Flexible Schedules This team is working new development software where our team members get to work hands on from the lab to the aircraft in all stages of development, including design, code, integration, and lab and field test. We work on a wide range of technologies and give our team members the opportunity to drive their career towards their area of interest. You...
Lockheed Martin
Jun 19, 2026
Test Engineer - Secret Clearance
Lockheed Martin Colorado Springs, CO
Description: What We’re Doing Lockheed Martin is developing innovative solutions to meet the evolving needs of our customers. As a leader in the defense and aerospace industry, we are committed to delivering high-quality products that exceed expectations. Our team is working on cutting-edge projects that require rigorous testing and validation to ensure product functionality and reliability. The Work As a Test Engineer, you will play a critical role in our team's success. Your primary responsibilities will include: •Developing test cases and test procedures to verify product functionality •Collaborating with cross-functional teams to identify and prioritize testing requirements •Utilizing your expertise in Linux, test case architectures, run log analysis, and bash scripting to design and execute comprehensive testing protocols •Analyzing test results and identifying areas for improvement Who We Are Lockheed Martin is a global leader in the design, development, and...
Lockheed Martin
Jun 19, 2026
Software Engineer Staff (Secret Clearance)
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Our team at Lockheed Martin, is dedicated to engineering, developing, and integrating new capabilities for the Missile Defense System that protects the United States and its allies. While we are part of a large organization, we operate within smaller, agile teams in a fast-paced, dynamic environment. Our responsibilities include Sensor/Weapon Integration, Algorithm Development, User Interface Development, Automated Testing, Cyber Security, and enhancing critical missile defense technologies. THE WORK Lockheed Martin is seeking a software engineer that will thrive in a fast paced team environment in the design, development, and testing of software applications. Under minimal direction, provides specialized expertise within multiple systems, software disciplines, as well as general knowledge of related disciplines, applications implications, and customer areas. Common responsibilities of a software engineer on the agile development teams include: •...
Lockheed Martin
Jun 19, 2026
Software Engineer Sr (Secret Clearance)
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Our team at Lockheed Martin, is dedicated to engineering, developing, and integrating new capabilities for the Missile Defense System that protects the United States and its allies. While we are part of a large organization, we operate within smaller, agile teams in a fast-paced, dynamic environment. Our responsibilities include Sensor/Weapon Integration, Algorithm Development, User Interface Development, Automated Testing, Cyber Security, and enhancing critical missile defense technologies. THE WORK Lockheed Martin is seeking a software engineer that will thrive in a fast paced team environment in the design, development, and testing of software applications. Under minimal direction, provides specialized expertise within multiple systems, software disciplines, as well as general knowledge of related disciplines, applications implications, and customer areas. Common responsibilities of a software engineer on the agile development teams include: •...
Lockheed Martin
Jun 19, 2026
Software Engineer (Secret Clearance)
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Our team at Lockheed Martin, is dedicated to engineering, developing, and integrating new capabilities for the Missile Defense System that protects the United States and its allies. While we are part of a large organization, we operate within smaller, agile teams in a fast-paced, dynamic environment. Our responsibilities include Sensor/Weapon Integration, Algorithm Development, User Interface Development, Automated Testing, Cyber Security, and enhancing critical missile defense technologies. THE WORK Lockheed Martin is seeking a software engineer that will thrive in a fast paced team environment in the design, development, and testing of software applications. Under minimal direction, provides specialized expertise within multiple systems, software disciplines, as well as general knowledge of related disciplines, applications implications, and customer areas. Common responsibilities of a software engineer on the agile development teams include: •...
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