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134 systems security engineer jobs found in King of Prussia

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Lockheed Martin
Jun 12, 2026
Cyber Systems Security Engineer Senior
Lockheed Martin King of Prussia, PA
Description: Cyber Systems Security Engineer (CSSE) – TTWCS Program What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work. The Work As a Cyber Systems Security Engineer (CSSE) supporting the TTWCS program, you will: Support the TTWCS modernization effort with architecting new solutions. Conduct cyber risk assessment activities, including threat modeling, vulnerability analysis, and evaluation of mitigation strategies. Develop, analyze, and validate security design constraints within the cyber domain. Collaborate with cybersecurity engineers, system architects, and developers to ensure robust, secure system...
Lockheed Martin
Jun 09, 2026
Cyber Systems Security Engineer
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 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 position is for a Cyber Systems Security Engineer. The selected candidate will be part of a dynamic, team-oriented, and collaborative Cyber engineering team at the Valley Forge Campus...
Lockheed Martin
Jun 09, 2026
Cyber Systems Security Engineer
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 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 position is for a Cyber Systems Security Engineer. The selected candidate will be part of a dynamic, team-oriented, and collaborative Cyber engineering team at the Valley Forge Campus...
Lockheed Martin
Jun 09, 2026
Cyber Systems Security Engineer
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 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 position is for a Cyber Systems Security Engineer. The selected candidate will be part of a dynamic, team-oriented, and collaborative Cyber engineering team at the Valley Forge Campus...
Lockheed Martin
Jun 09, 2026
Cyber Systems Security Engineer
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 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 position is for a Cyber Systems Security Engineer. The selected candidate will be part of a dynamic, team-oriented, and collaborative Cyber engineering team at the Valley Forge Campus...
Lockheed Martin
Jun 09, 2026
Cyber Systems Security Engineer
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 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 position is for a Cyber Systems Security Engineer. The selected candidate will be part of a dynamic, team-oriented, and collaborative Cyber engineering team at the Valley Forge Campus...
Lockheed Martin
Jun 04, 2026
Cyber Systems Security Engineer Staff
Lockheed Martin King of Prussia, PA
Description: Cyber Systems Security Engineer What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work. The Work As a Cyber Systems Security Engineer (CSSE) supporting the TTWCS program, you will: Perform periodic manual and automated STIG evaluations, tracking deltas across versions and platforms. Conduct cyber risk assessment activities, including threat modeling, vulnerability analysis, and evaluation of mitigation strategies. Develop, analyze, and validate security design constraints within the cyber domain. Collaborate with cybersecurity engineers, system architects, and developers to ensure robust, secure system...
Lockheed Martin
Jun 12, 2026
Ground Software Engineer
Lockheed Martin King of Prussia, PA
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 Lockheed Martin is seeking a talented Level 2 ground Software Engineer with an active Final Top Secret security clearance to work from either our King of Prussia, PA or Littleton, CO location(s) . This position is contingent upon the program award expected in July, 2026. We are...
Lockheed Martin
Jun 12, 2026
Ground Software Engineer Sr.
Lockheed Martin King of Prussia, PA
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 Lockheed Martin is seeking a talented Level 3 ground Software Engineer with an active Final Top Secret security clearance to work from either our King of Prussia, PA or Littleton, CO location(s) . This position is contingent upon the program award expected in July, 2026. We are...
Lockheed Martin
Jun 12, 2026
Ground Software Engineer Stf
Lockheed Martin King of Prussia, PA
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 Lockheed Martin is seeking a talented Level 4 ground Software Engineer with an active Final Top Secret security clearance to work from either our King of Prussia, PA or Littleton, CO location(s) . This position is contingent upon the program award expected in July, 2026. We are...
Lockheed Martin
Jun 12, 2026
Systems Engineer - Release Assembly
Lockheed Martin King of Prussia, PA
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
Jun 12, 2026
Hardware Engineer
Lockheed Martin King of Prussia, PA
Description: WHAT WE'RE DOING Lockheed Martin Rotary and Mission Systems has an opportunity in Valley Forge, PA for a hardware engineer, supporting RMS EMC2 programs in Valley Forge, PA. THE WORK As a Hardware Engineer supporting RMS EMC2, located in Valley Forge, PA, you will: • Analyze customer requirements (power, cooling, environment, storage, and transportation). • Develop Bills of Material, generate COTS modification and assembly drawings. • Coordinate material purchases with procurement department and approve of vendor quotes, • Support hardware assembly tasks. • Coordinate with vendors to repair or replace defective or damaged equipment, identify and document modifications. • Coordinate and support equipment installation at test and customer facilities and provide customer support to help them resolve problems. Please Note: • This position requires a government security clearance; you must be a US Citizen for consideration. WHO WE ARE You will collaborate...
Lockheed Martin
Jun 12, 2026
Systems Engineer - Early Career
Lockheed Martin King of Prussia, PA
Description: 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 Space is seeking a full-time Early Career Systems Engineer. In this role, you will review, evaluate and derive requirements for testability, develop and directs preparation and execution of comprehensive test plans, procedures and schedules for complete systems and/or subsystems. You will coordinate subsystem and/or system testing activities with programs and other organizations, performs analysis of test results, and prepare comprehensive subsystem and/or system level evaluation reports which verify and validate system performance. Additional tasks include writing discrepancy reports and performing integration regression testing to verify and validate incorporated fixes to software, components, subsystems and...
Lockheed Martin
Jun 12, 2026
Software Engineer - Operations Analysis- Early Career
Lockheed Martin King of Prussia, PA
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. What We’re Doing Lockheed Martin is shaping the future of military tactics and technology through advanced Operations Analysis (OA). Within the Rotary & Mission Systems (RMS) business area, the OA development team conducts studies and analyses across a wide range of...
Lockheed Martin
Jun 12, 2026
DevSecOps Engineer, Staff
Lockheed Martin King of Prussia, PA
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 Lockheed Martin is seeking a talented level 4 DevSecOps Engineer with an active TS/SCI security clearance to work from either our King of Prussia, PA or Littleton, CO location(s) . This is an MID-SR CAREER (level 4) ROLE where candidates typically require 5+ years of professional...
Lockheed Martin
Jun 12, 2026
CMM Programmer
Lockheed Martin King of Prussia, PA
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. • Program, set up, and operate Zeiss CMMs using Calypso software, FaroArm, and Blue‑Light...
Lockheed Martin
Jun 10, 2026
Systems Engineer, Senior
Lockheed Martin King of Prussia, PA
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 60 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s...
Lockheed Martin
Jun 10, 2026
Software Engineer- Early Career
Lockheed Martin King of Prussia, PA
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 Rotary & Mission Systems is seeking a full-time Early Career Software Engineer. As a team member on our Software Engineering team, you can help us take on the world’s most important and complex challenges by providing solutions to a variety of technical...
Lockheed Martin
Jun 10, 2026
Systems Engineer - Linux TS/ SCI (TS/SCI Required)
Lockheed Martin King of Prussia, PA
Description: What We’re Doing: Lockheed Martin’s Electronic, Cyber & Information Warfare (ECIW) market segment within the RMS C6ISR line of business is focused on ensuring our customers can dominate the full Electromagnetic Spectrum (EMS), bringing capabilities to bear in the realms of intelligence, surveillance and reconnaissance (ISR), cyber techniques and effects, electronic warfare (EW), information operations (IO), and 5G.MIL; while delivering full-spectrum cyber capabilities and cyber resilient systems to our defense, intelligence community and global security customers. We are dedicated to helping governments and militaries around the world protect their platforms, systems, networks and data by: protecting networks, cyber hardening weapons, providing mission and training systems; outfitting cyber warriors with technologies for offensive and defensive missions; developing advanced technologies that enable cyber operations; and helping the intelligence community...
Lockheed Martin
Jun 10, 2026
Software Engineer Sr - Level 3
Lockheed Martin King of Prussia, PA
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,...
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