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145 system cybersecurity engineer jobs found

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Information Technology United States system cybersecurity engineer
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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...
U. S. National Security Agency
Jul 27, 2026
Systems Engineer Development Program - Entry to Mid Level (Maryland)
U. S. National Security Agency Fort Meade, MD
Responsibilities: With ever-accelerating technological advances and growing system complexity, a highly skilled, professional workforce of Systems Engineers (SE) is essential to build, integrate, and optimize complex systems and services. These World-class, experienced, technical professionals solve challenging systems engineering problems utilizing incredibly innovative solutions. Systems Engineers perform trade studies to generate and translate conceptual designs into technical specifications, participate in the evaluation of prototype hardware systems and software solutions, and integrate these solutions into the worldwide collection and processing architecture. Backgrounds such as Cybersecurity, SIGINT, electrical engineering, computer engineering, physics, computer science, machine learning (ML) and artificial intelligence (AI) all have a place in the spectrum of implementations, ranging from commercial/government off-the-shelf solutions to the development of new and unique...
Lockheed Martin
Jul 22, 2026
Cyber Sys Secur Engr Sr
Lockheed Martin Marietta, GA
Description: Lockheed Martin Aeronautics Air Mobility and Maritime Missions in Marietta, GA is seeking a full-time Cyber Systems Security Engineer. The System Security Engineer translates security policies and architectural intent into concrete, verifiable system, subsystem, and component requirements. Leveraging a solid systems engineering foundation, the SSE supports derivation, allocation, and implementation of security functional and assurance requirements across the system, subsystem, and component levels. This role participates in threat modeling and vulnerability analysis activities, designs mitigation strategies, and authors verification and validation test procedures associated with RMF Artifacts. By conducting security test and evaluation, this position will confirm that the system meets its security objectives and complies with applicable RMF policies and standards. The engineer also creates and maintains security views within system models and collaborates closely...
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 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
Software 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 roadmap features into actionable work items Design, Implement, and integrate/test software features Perform peer reviews for fellow software engineers and debug issues as they arise Participate in technical discussions to define/solve overarching software...
Lockheed Martin
Jul 17, 2026
Senior Software 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 roadmap features into actionable work items Design, Implement, and integrate/test software features Perform peer reviews for fellow software engineers and debug issues as they arise Participate in technical discussions to define/solve overarching software...
Lockheed Martin
Jul 17, 2026
Software 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 roadmap features into actionable work items Design, Implement, and integrate/test software features Perform peer reviews for fellow software engineers and debug issues as they arise Participate in technical discussions to define/solve overarching software...
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
Jul 16, 2026
Systems Engineer - IT (TS/SCI)
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 16, 2026
Systems Engineer - IT Sr (TS/SCI)
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 16, 2026
Senior Cyber 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
Jul 16, 2026
Cyber SWE - Python / Antenna
Lockheed Martin Fort Meade, 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 $3000 payment! WHAT WE'RE DOING: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the evolving threat of cyber warfare. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK: The GG Cyber Software Engineer (SWE) - Python - Antenna Collections, you'll lead multi faceted critical system development project, deployment and evolution of management and control (M&C)...
Lockheed Martin
Jul 15, 2026
DevOps Engineer Senior
Lockheed Martin MD
Description: WHAT WE'RE DOING: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the evolving threat of cyber warfare. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK: The GG DevOps System Engineer is in a customer-facing role leading multi-faceted mission critical system integration, testing, and deployment. The successful candidate will be responsible for ensuring the smooth operation of our satellite communication systems, from integration to deployment, and will work closely with cross-functional teams to ensure software meets user requirements. The...
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
Jul 10, 2026
Cyber Software Engineer Senior
Lockheed Martin King of Prussia, PA
Description: 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. Key Responsibilities • Design and implement secure system architectures for enterprise and mission-critical environments. • Apply cybersecurity engineering principles across the full system lifecycle, including requirements, design, implementation, verification, deployment, and sustainment. • Support Risk Management Framework (RMF) activities including control implementation, assessment, evidence collection, and ATO accreditation and sustainment. • Perform security hardening of operating systems, applications, databases, and network devices in...
Lockheed Martin
Jul 10, 2026
Cyber Software Engineer Staff
Lockheed Martin King of Prussia, PA
Description: 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 We are seeking a highly motivated Cyber Security Systems Engineer to support the design, implementation, hardening, and sustainment of secure mission systems across both CONUS and OCONUS environments. This role requires strong technical expertise in systems engineering, cybersecurity, infrastructure security, automation, and DevSecOps practices. The ideal candidate will support secure architecture development, system accreditation activities, continuous monitoring, vulnerability management, and automation of security controls within CI/CD...
DLH
Jul 08, 2026
Network Administrator/Cloud/Security Engineer (Job 1393)
DLH Bethesda, MD
About Us DLH delivers improved health and national security readiness solutions for federal programs through science research and development, systems engineering and integration, and digital transformation. Our experts in public health, performance evaluation, and health operations solve the complex problems faced by civilian and military customers alike by leveraging advanced tools – including digital transformation, artificial intelligence, data analytics, cloud enablement, modeling, and simulation, and more. With over 2,400 employees dedicated to the idea that “Your Mission is Our Passion,” DLH brings a unique combination of government sector experience, proven methodology, and unwavering commitment to innovation to improve the lives of millions. Overview We are searching for a driven and dynamic  Security Engineer  to join our growing team .  This position is based in  Bethesda, MD. This role provides support to our client in cloud architecture,...
Lockheed Martin
Jul 07, 2026
Cyber Defense Incident Responder Senior - Clearance Required
Lockheed Martin MD
Description: WHO WE ARE Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK The scope of this effort encompasses tasks that provide USCYBERCOM with the sustained ability to fulfill its mission to direct, synchronize, and coordinate cyberspace planning and operations to...
Lockheed Martin
Jul 07, 2026
Program Support Specialist Journeyman - Clearance Required
Lockheed Martin MD
Description: WHO WE ARE Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK The scope of this effort encompasses tasks that provide USCYBERCOM with the sustained ability to fulfill its mission to direct, synchronize, and coordinate cyberspace planning and operations to...
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