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174 cyber systems security engineer jobs found

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Information Technology United States cyber systems security engineer
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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...
Lockheed Martin
Jun 24, 2026
Cyber Systems Security Engineer Sr
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: 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 AI design constraints within the cyber domain. Collaborate with cybersecurity engineers, system architects, and developers to...
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 06, 2026
Cyber Systems Security Engineer Sr (Owego, NY)
Lockheed Martin Owego, NY
Description: WHAT WE’RE DOING At Lockheed Martin - Rotary Mission Systems, we are leading the development of state-of-the-art technologies that are integral to national security and defense. As part of our ongoing commitment to advancing mission-critical solutions, we are focused on integrating cutting-edge cybersecurity measures to ensure the resilience and security of our systems. By embedding advanced cybersecurity features, we are enhancing the operational effectiveness and safety of our technologies in an increasingly complex digital landscape. THE WORK As a Cyber Systems Security Engineer Sr, you will support the integration of modern cybersecurity solutions across multiple Owego programs. You will play a critical role in ensuring our systems are not only effective but also resilient in the face of evolving threats. Key responsibilities include: Cybersecurity Design & Implementation: Support the decomposition of Statements of Work (SOW) into actionable,...
Lockheed Martin
Jun 06, 2026
Cyber Systems Security Engineer (Owego, NY)
Lockheed Martin Owego, NY
Description: WHAT WE’RE DOING At Lockheed Martin - Rotary Mission Systems, we are leading the development of state-of-the-art technologies that are integral to national security and defense. As part of our ongoing commitment to advancing mission-critical solutions, we are focused on integrating cutting-edge cybersecurity measures to ensure the resilience and security of our systems. By embedding advanced cybersecurity features, we are enhancing the operational effectiveness and safety of our technologies in an increasingly complex digital landscape. THE WORK As a Cyber Systems Security Engineer Sr, you will support the integration of modern cybersecurity solutions across multiple Owego programs. You will play a critical role in ensuring our systems are not only effective but also resilient in the face of evolving threats. Key responsibilities include: Cybersecurity Design & Implementation: Support the decomposition of Statements of Work (SOW) into actionable,...
Lockheed Martin
Jun 06, 2026
Cyber Systems Security Engineer (Stratford, CT)
Lockheed Martin Stratford, CT
Description: WHAT WE’RE DOING At Lockheed Martin - Rotary Mission Systems, we are leading the development of state-of-the-art technologies that are integral to national security and defense. As part of our ongoing commitment to advancing mission-critical solutions, we are focused on integrating cutting-edge cybersecurity measures to ensure the resilience and security of our systems. By embedding advanced cybersecurity features, we are enhancing the operational effectiveness and safety of our technologies in an increasingly complex digital landscape. THE WORK As a Cyber Systems Security Engineer Sr, you will support the integration of modern cybersecurity solutions across multiple Owego programs. You will play a critical role in ensuring our systems are not only effective but also resilient in the face of evolving threats. Key responsibilities include: Cybersecurity Design & Implementation: Support the decomposition of Statements of Work (SOW) into actionable,...
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
May 23, 2026
Cyber Systems Security Engineer
Lockheed Martin Manassas, VA
Description: WHAT WE’RE DOING At Lockheed Martin - Rotary and Mission Systems, we're shaping the future of Undersea Warfare (USW) systems. Our mission is to develop innovative technologies that secure our nation’s defense. We are integrating state-of-the-art cybersecurity solutions into mission-critical systems to ensure resilience, integrity, and continued superiority under the sea and across domains. THE WORK As a Cyber Systems Security Engineer, you will take a leadership role in enhancing cybersecurity across SWFTS (Submarine Warfare Federated Tactical Systems). You’ll drive the development and integration of modern cyber solutions that protect and empower critical Department of Defense (DoD) assets. Key responsibilities include: Designing, implementing, and maintaining security controls to protect system confidentiality, integrity, and availability Leverage guidance from Risk Management Framework (RMF), Security Requirements Guides (SRG), and Security Technical...
Lockheed Martin
Jul 16, 2026
Cyber Systems Security Engineer
Lockheed Martin Fort Walton Beach, FL
Description: WHAT WE’RE DOING At Lockheed Martin's Rotary and Mission System's Cyber Resiliency organization, we are dedicated to engineering and deploying cutting-edge cyber defense solutions across our corporation. Our focus on cybersecurity is paramount to ensuring mission success for our customers, even in the face of evolving cyber threats. THE WORK As a member of our team, you will be involved in a variety of activities aimed at enhancing the cyber resiliency of the USSF Space Fence System radar. This includes tasks such as: • Hardening operating systems, applications, and network devices • Conducting vulnerability scans • Continuous monitoring of the security posture of the system • Assisting with Government Certification Test and Evaluation (CT&E) and Vulnerability Testing • Implementing security updates and patches • Applying configuration changes to ESS, ACAS, and SolarWinds security tools • Providing support to maintain the Certification and Accreditation...
Lockheed Martin
Jul 16, 2026
Cyber Systems Security Engineer
Lockheed Martin Fort Walton Beach, FL
Description: WHAT WE’RE DOING At Lockheed Martin's Rotary and Mission System's Cyber Resiliency organization, we are dedicated to engineering and deploying cutting-edge cyber defense solutions across our corporation. Our focus on cybersecurity is paramount to ensuring mission success for our customers, even in the face of evolving cyber threats. THE WORK As a member of our team, you will be involved in a variety of activities aimed at enhancing the cyber resiliency of the USSF Space Fence System radar. This includes tasks such as: • Hardening operating systems, applications, and network devices • Conducting vulnerability scans • Continuous monitoring of the security posture of the system • Assisting with Government Certification Test and Evaluation (CT&E) and Vulnerability Testing • Implementing security updates and patches • Applying configuration changes to ESS, ACAS, and SolarWinds security tools • Providing support to maintain the Certification and Accreditation...
Lockheed Martin
Jul 13, 2026
Cyber System Security Engineer
Lockheed Martin Herndon, VA
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? The Kayenne program is seeking a Cyber Security Engineer technical lead for the Program’s Cyber Team. This team is responsible for applying an interdisciplinary, collaborative approach to plan,...
Lockheed Martin
Aug 14, 2026
Systems Engineer Staff
Lockheed Martin King of Prussia, PA
Description: WHAT WE'RE DOING Lockheed Martin is advancing next-generation command and control capabilities to support critical missions through scalable, data-driven systems. You will be joining the Enterprise Mission C2 (EMC2) organization supporting the Tactical Tomahawk Weapons Control System (TTWCS) program in Valley Forge, PA. We are seeking an experienced Systems Engineer with direct experience in modern development practices and technologies to support the TTWCS software modernization effort, working in partnership with external organizations across the TTWCS System Development Activity (SDA). THE WORK As your primary responsibility, you will operate as a systems engineer for TTWCS modernization efforts, playing an active role across all software development activities – from its design and description to hands-on development and testing. This role will help in shaping the next generation of TTWCS software architecture and execution, and ensuring systems...
Lockheed Martin
Aug 11, 2026
Software Engineer
Lockheed Martin Offutt Air Force Base, NE
Description: WHAT WE'RE DOING By bringing together people that use their passion for purposeful innovation, 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 diverse 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. At Lockheed Martin, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility. Your Mission is Ours. THE WORK Lockheed Martin has been embedded with the USSTRATCOM Nuclear Mission for 30+ years and has a track record of bringing innovative mission software solutions to this domain. Lockheed Martin Rotary & Mission...
Lockheed Martin
Aug 05, 2026
Systems Engineer Sr. Staff - Technical Lead
Lockheed Martin Fairfax, VA
Description: Lockheed Martin Space is seeking a Level 5 Systems Engineer to lead the design and implementation of the advanced Global Navigation Satellite System (GNSS) and Satellite Based Augmentation System (SBAS) solutions. The role involves applying rigorous systems engineering and reliable and secured networking techniques, ensuring compliance with industry standard development assurance guidelines, and delivering high reliability navigation capabilities for our commercial customers. Development and Integration Lead – Develop and execute network design, cybersecurity requirements, and implementation plans for GNSS/SBAS hardware and software. Assurance Standards Application – Apply SAE ARP4754A, SAE ARP4761, RTCA DO 178C, DO 278A, and/or DO 254 as appropriate to ensure safety, reliability, and airworthiness. Risk & Safety Analysis – Conduct hazard assessments, FMEA, and other safety analyses; mitigate technical and program risks. Cross Disciplinary Coordination – Work...
LMI
Aug 05, 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 29, 2026
Data Modernization System Engineer - Clearance Required
Lockheed Martin MD
Description: This position is participating in our External Referral Program . If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a payment! code-extrefer Data Modernization System Engineer - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. • As a Data Modernization System Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure Solutions...
Lockheed Martin
Jul 28, 2026
Software Engineer Sr. 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: •...
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