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874 information systems security engineer jobs found

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LMI
Jul 21, 2026
Cybersecurity Information System Security Engineer - Clearance Required
LMI Fort Belvoir, VA
Overview LMI is seeking a skilled Senior Cybersecurity Information Systems Security Engineer (ISSE) to support US Army  Capability Program Executive (CPE) Gound   office  at Ft. Belvoir, Virginia. The ISSE will drive efforts that support software and hardware cybersecurity Risk Management Framework (RMF) Authority to Operate (ATO).     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...
Lockheed Martin
Jul 21, 2026
Systems Engineer Sr.
Lockheed Martin Colorado Springs, 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. • Generating and simulating operational level plans to explore the art of the possible,...
Lockheed Martin
Jul 21, 2026
Software Engineer Staff
Lockheed Martin Huntsville, AL
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 Lockheed Martin Next Generation Interceptor (NGI) team is seeking experienced...
Lockheed Martin
Jul 21, 2026
Senior Software Engineer (C++ Development, Radar Signal Processing)
Lockheed Martin Moorestown, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work The Lockheed Martin Rotary & Mission Systems Software Engineer will have the opportunity to perform real-time processing software development in support of our product lines. Additionally, you will be working as part of an Agile team with domain experts from Hardware, Software, Subsystems and Systems Engineering to understand requirements, establish architecture/design, implement sound solutions, develop unit tests, and support integration and sustainment activities. This position requires a U.S. DoD Security Clearance at the SECRET level. This position is located at a facility that requires special access. Who We Are Lockheed Martin is a global aerospace, defense, and security...
Lockheed Martin
Jul 21, 2026
Systems Engineer - Requirements and Verification 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. For over 70 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s...
Lockheed Martin
Jul 21, 2026
Software Engineer Stf - Simulation - Level 4
Lockheed Martin Marietta, GA
Description: You will be a Software Engineer Staff, for the F-22 Air Combat Simulation (ACS) Man in the Loop (MITL) development team which is responsible for developing and integrating new features into the simulation, sustaining the product, and rehosting the Operational Flight Program for Linux environments. The ACS serves as the Digital Twin for the F22 aircraft and supports pilot training, tactics development, and DT/OT testing including DevSecOps support in the Raptor Virtual Development Lab (RVDL). What You Will Be Doing As the Product Owner for the F-22 In A Box (F-22IAB) high fidelity combat simulation you will be responsible for guiding the MITL software development team in incorporation with the Joint Simulation Environment (JSE). Your responsibilities will include: Manage cost, schedule, and technical scope, providing weekly/monthly status and leading technical interchange meetings. Lead customer interactions, including program management reviews, risk...
Lockheed Martin
Jul 21, 2026
Systems Engineer Staff
Lockheed Martin Huntsville, AL
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 System Engineer Staff on the Medusa program, you be responsible for development...
Lockheed Martin
Jul 21, 2026
Systems Engineer
Lockheed Martin Huntsville, AL
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? As a System Engineer on the...
Lockheed Martin
Jul 18, 2026
Systems Integration Engineer Senior Staff
Lockheed Martin Sunnyvale, CA
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
Jul 18, 2026
Software 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 Lockheed Martin Next Generation Interceptor (NGI) team is seeking experienced...
Lockheed Martin
Jul 18, 2026
Senior Software Engineer - EADGE-T Tech Refresh - EXPAT UAE
Lockheed Martin King of Prussia, PA
Description: PLEASE NOTE: THIS POSITION REQUIRES A FULL-TIME EXPATRIATE ASSIGNMENT IN THE UNITED ARAB EMIRATES (UAE) FOR APPROXIMATELY 2 TO 3 YEARS. WHAT WE'RE DOING Join the EADGE-T team and help modernize an integrated air and missile defense and air battle management capability for the United Arab Emirates. As part of the UAE Tech Refresh , you'll support hardware modernization and foundational cybersecurity enhancements while helping deliver the next generation of this mission-critical system. Working alongside an international customer, you'll help develop and deploy advanced software capabilities supporting one of Lockheed Martin's premier international defense programs. THE WORK As a Senior Software Engineer, you'll design, develop, integrate, and test software solutions supporting mission-critical air and missile defense capabilities. Working in an Agile development environment, you'll collaborate with cross-functional engineering teams to deliver new...
Lockheed Martin
Jul 18, 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 18, 2026
Senior Software Engineer, Level 3 - Clearance Required
Lockheed Martin Houston, TX
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 Software Engineer. In this role, you will...
Lockheed Martin
Jul 17, 2026
Mission Engineer - Satellite Operations & Ground‑Segment
Lockheed Martin King of Prussia, PA
Description: Within the Charlie Portfolio of Space Security, we are seeking a highly motivated Mission Engineer with experience in orbital dynamics theory and mission planning satellite applications to join our dynamic team. In this role, you will work across the full mission lifecycle—from early concept development through on-orbit operations—collaborating with development teams, contractors, customers, and subject-matter experts to deliver mission success. The selected candidate will be responsible for designing, analyzing, and validating mission concepts, supporting the development of ground‑system applications, and collaborating across multidisciplinary teams to ensure successful mission execution from concept through operations. · High-Visibility Impact - Work side-by-side with the Chief Mission Architect, shaping mission architectures and influencing key decisions from design through operations. · Cutting-Edge Projects - Support diverse satellite programs—including...
Lockheed Martin
Jul 17, 2026
Systems Engineer - IT (Level 2)
Lockheed Martin King of Prussia, PA
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. The Space Security Division within Lockheed Martin Space’s Mission Solutions business area is seeking a talented and dedicated Systems Engineer-IT to become a member of an Agile team focused on IT Infrastructure (Systems Administration, Networking, & Hardware) in the Whiskey Program Area. Are you a Systems Admin looking for something...
Lockheed Martin
Jul 17, 2026
Systems Engineer Senior Staff – PLM Solutions
Lockheed Martin Littleton, CO
Description: Protecting what matters most is the mission that matters most. 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. The Senior Systems Engineer will play a pivotal role in driving the future-state harmonization of enterprise 1LMX Product Lifecycle Management (PLM) system functions, data models, and interfaces for LM Space and across multiple business areas. This role bridges the gap between complex engineering and production business processes and IT tool solutions, leading functional requirements development, strategy, and IT...
Lockheed Martin
Jul 17, 2026
Senior Systems Engineer - EADGE-T Tech Refresh
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Come join the EADGE-T team and be part of an effort to upgrade the program’s technology and bring new capabilities to the UAE customer. The EADGE-T system is an integrated air missile defense, air battle management capability for the UAE integrating existing sensors, weapons as well as new capabilities. The Tech Refresh will focus on Foundational / Cyber Security Enhancements. Join us and become a part of the team that is actively designing and developing the updated baseline and get the opportunity to work with an international customer! THE WORK EADGE-T is seeking a software engineer to join one of the agile development teams. In this role, you will: Decompose higher-level requirements from L1/A Spec to L2/B Spec Use DOORS Next to track requirements Participate in engineering design reviews Design/execute trade studies/analysis of alternatives Perform requirements verification Participate in System Architecture activities Use...
Lockheed Martin
Jul 17, 2026
Systems Engineer Staff - EADGE-T Tech Refresh
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Come join the EADGE-T team and be part of an effort to upgrade the program’s technology and bring new capabilities to the UAE customer. The EADGE-T system is an integrated air missile defense, air battle management capability for the UAE integrating existing sensors, weapons as well as new capabilities. The Tech Refresh will focus on Foundational / Cyber Security Enhancements. Join us and become a part of the team that is actively designing and developing the updated baseline and get the opportunity to work with an international customer! THE WORK EADGE-T is seeking a software engineer to join one of the agile development teams. In this role, you will: Decompose higher-level requirements from L1/A Spec to L2/B Spec Use DOORS Next to track requirements Participate in engineering design reviews Design/execute trade studies/analysis of alternatives Perform requirements verification Participate in System Architecture activities Use...
Lockheed Martin
Jul 17, 2026
Staff Full Stack Engineer - UAE Tech Refresh
Lockheed Martin Colorado Springs, CO
Description: WHAT WE'RE DOING Come join the EADGE-T team and be part of an effort to upgrade the program’s technology and bring new capabilities to the UAE customer. The EADGE-T system is an integrated air missile defense, air battle management capability for the UAE integrating existing sensors, weapons as well as new capabilities. The Tech Refresh will focus on Hardware upgrades and Foundational / Cyber Security Enhancements. Join us and become a part of the team that is actively designing and developing the updated baseline and get the opportunity to work with an international customer! THE WORK The Full Stack Engineer is responsible for performing system integration, verification and validation, performing hardware and software integration and completing information technology related tasks including design, development, and analysis of computer systems or programs based on and related to user or system design specifications. They will also apply systems analysis...
Lockheed Martin
Jul 16, 2026
Cyber Systems Security Engineer
Lockheed Martin Liverpool, NY
Description: WHAT WE’RE DOING At the dawn of a new age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing workforce are on a mission to make a difference in the world. Our World-class team leverages 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. WHO WE ARE We are leveraging emerging, digitally-enabled capabilities to lower cost, speed up development time and create innovative solutions to best serve our customers and stakeholders. We’re bringing the 4th Industrial Revolution to every role in the company. Are you ready to invent the future? Lockheed Martin Rotary & Mission Systems is on a journey of digital transformation as we...
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