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19 cyber systems security engineer jobs found

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Lockheed Martin
May 06, 2026
Cyber Sys Secur Engr Sr
Lockheed Martin Palmdale, CA
Description: Join our team of innovative engineers at Lockheed Martin Aeronautics, where we're pushing the boundaries of technology to design and develop cutting-edge air vehicles and aircraft. As a Cyber Systems Security Engineer, you'll play a critical role in ensuring the cyber security of our platforms, from design to implementation. Your expertise will help us create cyber-resilient security design solutions that meet the needs of our customers and protect our systems from emerging threats. In this role, you will apply an interdisciplinary and collaborative approach to plan, design, develop, validate, and verify cyber engineering solutions throughout their lifecycle to ensure cyber security requirements are effectively defined, decomposed, implemented, and assessed to create resilient security solutions. What’s In It For You: We offer flexible work schedules to comprehensive benefits investing in your future and security, Learn more about Lockheed Martin’s comprehensive...
Lockheed Martin
May 06, 2026
Cyber Sys Secur Engr Sr
Lockheed Martin Fort Worth, TX
Description: Join our team of innovative engineers at Lockheed Martin Aeronautics, where we're pushing the boundaries of technology to design and develop cutting-edge air vehicles and aircraft. As a Cyber Systems Security Engineer, you'll play a critical role in ensuring the cyber security of our platforms, from design to implementation. Your expertise will help us create cyber-resilient security design solutions that meet the needs of our customers and protect our systems from emerging threats. What’s In It For You: We offer flexible work schedules to comprehensive benefits investing in your future and security, Learn more about Lockheed Martin’s comprehensive benefits package here. Do you want to be part of a company culture that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus -if you have the passion and courage to dream big, work hard,...
Lockheed Martin
May 07, 2026
Classified Cyber Security Staff
Lockheed Martin Liverpool, NY
Description: What We’re Doing: At Lockheed Martin Rotary and Mission Systems, we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, and education. Lockheed Martin Rotary and Mission Systems (RMS) safeguards the nation’s most sensitive data and war fighting capabilities. As a senior member of the Classified Cyber Security Staff (Level 4) you will work side by side with the Information System Security Manager (ISSM), cyber experts, military operators, and program teams to advise on design and architecture for continuous monitoring, risk based security, and supply chain assurance across our Syracuse, NY programs. Your mission is to embed robust security controls directly into the development, build, and deployment processes so that the environment remains protected without manual...
SAIC
May 06, 2026
Security Engineer
SAIC DC
Description SAIC seeks a Security Engineer to support the Department of Transportation's Cybersecurity mission by joining a dedicated team of cybersecurity professionals who collaborate, cooperate, and facilitate maintaining and enhancing the security posture of DOT information systems and infrastructure. These information systems and infrastructure support the DOT mission of managing and maintaining United States critical infrastructure (i.e. highways, bridges, roads, etc.). Role is Onsite in Washington DC/ 5 days a week In this role you will: Engage with Federal Leadership and counterparts to implement endpoint protection profile changes to address external threats, and enforce security requirements Coordinate with application administrators and infrastructure administrators and engineers to troubleshoot issues associated with endpoint protection software Support integration of endpoint security data with security log aggregation solutions, to include security...
SAIC
May 06, 2026
Software Engineer
SAIC MD
Description SAIC is seeking a highly skilled and motivated Software Engineer with an active TS/SCI clearance to join our prestigious Nuclear Command, Control, and Communications (NC3) Enterprise Center (NEC) team within the Enterprise Analytics and Integration Division. In this role, you will design, develop, and deploy innovative cloud-native applications while integrating advanced Oracle database solutions. This is a rewarding opportunity to work 100% onsite at either Fort Meade MD or Offutt AFB NE, contributing to systems that support national defense. Job Responsibilities: Design and Innovate : Create and implement advanced software systems for cloud-native environments. Database Integration : Develop seamless integrations between applications and Oracle databases to ensure robust functionality and performance. Agile Teamwork: Collaborate in an Agile Framework, working within a highly integrated software development team to deliver cutting-edge solutions....
Lockheed Martin
May 02, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin King of Prussia, PA
Description: Top Secret security clearance with ability to obtain SCI Eligibility and Polygraph. This position will perform duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) for systems located at the LM Space facility in Valley Forge PA. The work that Cybersecurity ISSO’s do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Oversee day-to-day information system security operations including hardware and software implementations. - Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF). - Upkeep,...
SAIC
Apr 29, 2026
Senior Firewall Engineer
SAIC VA
Description SAIC is seeking a Senior Firewall Engineer to support DCSA for an ONSITE position out of Quantico, VA. (All qualified candidates must possess a TS/SCI and a Sec+) Introduction Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force and Combatant Commands Business Group of SAIC is seeking a Senior Firewall Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies....
LMI
Apr 08, 2026
Army Information Systems Security Engineer (ISSE)
LMI Remote, UNAVAILABLE
Overview LMI, a consultancy dedicated to supporting government transformation and readiness, is seeking a skilled Information Systems Security Engineer (ISSE) to support the Naval Autonomous Data Collection System (NADACS) portfolio. Utilizing a blend of digital solutions, analytics, and security expertise, this role focuses on advancing mission success for the U.S. Army by providing robust system security engineering and cyber compliance solutions. Join LMI’s team and contribute to the secure deployment and modernization of NADACS—pivotal to U.S. Army operations and logistics. This role offers the chance to shape security processes, influence system compliance, and enable mission success through advanced cybersecurity solutions. Extensive collaboration and technical expertise are key for a security-first approach in protecting critical DoD systems. This position requires a  Secret clearance .   LMI is a new breed of digital solutions provider dedicated to...
Lockheed Martin
Mar 28, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin Cape Canaveral, FL
Description: This position will perform duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) for the LM Space facility in Cape Canaveral, FL. Classified Cybersecurity Analysts help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. The work that Cybersecurity Analysts do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline. - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Oversee day-to-day information system security...
SAIC
Mar 25, 2026
Software Engineer
SAIC MD
Description SAIC is seeking a highly skilled and motivated Software Engineer to join our prestigious Nuclear Command, Control, and Communications (NC3) Enterprise Center (NEC) team within the Enterprise Analytics and Integration Division. In this role, you will design, develop, and deploy innovative cloud-native applications while integrating advanced Oracle database solutions. This is a rewarding opportunity to work 100% onsite at either Fort Meade MD or Offutt AFB NE , contributing to systems that support national defense. Job Responsibilities: Design and Innovate: Create and implement advanced software systems for cloud-native environments. Database Integration: Develop seamless integrations between applications and Oracle databases to ensure robust functionality and performance. Agile Teamwork: Collaborate in an Agile Framework, working within a highly integrated software development team to deliver cutting-edge solutions. DevSecOps Excellence: Operate within...
SAIC
Mar 18, 2026
Systems Security Engineer
SAIC MD
Description SAIC is seeking a highly motivated Systems Security Engineer. The successful candidate will provide support to the Cybersecurity Integrity Center in the Department of State Bureau of Diplomatic Technology (DT). Duties are in the Washington, D.C. metropolitan area (30% in downtown D.C; 70% in Beltsville, MD). Supports cybersecurity monitoring, threat analysis, incident response, and infrastructure remediation within and across all the State Department's information technology (IT) infrastructure. Coordinates and collaborates with other State Department bureaus as well as other organizations within the Federal Government, and commercial partners. Description of Duties: The Systems Security Engineer collaborates with Department and external cyber stakeholders on cybersecurity technologies with experience in Microsoft products and security systems, network topology and protocols, enterprise server & desktop operating systems, and applications, in support of over...
SAIC
Mar 11, 2026
Information System Security Engineer
SAIC VA
Description SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA and requires an active TS/SCI clearance with Polygraph . This Customer's office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you. Job responsibilities include, but are not limited to: Support the Lifecycle Assessment and Authorization (A&A) process. Develop a Systems Security Plan (SSP). Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures. Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs). Monitor and track projects in the A&A queue....
General Dynamics Mission Systems, Inc
May 11, 2026
26-124 - C2BMC Cyber MFA Specialist
General Dynamics Mission Systems, Inc Colorado Springs, CO
Basic Qualifications Bachelor’s degree in a related specialized area or equivalent is required plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience. CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a Command and Control, Battle Management, Communication (C2BMC) MFA Specialist, you be a part of a team providing security to the Labs, C2BMC Testbed, and Ops deployments. Your primary responsibility will be to develop, document, and maintain the Windows Multifactor Authentication (MFA) system.   We...
Lockheed Martin
Apr 28, 2026
Cyber Security Engineer Senior (Represented)
Lockheed Martin Moorestown, NJ
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. WHO WE ARE Lockheed Martin is driven by innovation, integrity, and a commitment to excellence. We believe in applying the highest standards of business ethics and visionary thinking to everything we do. As part of our team, you will collaborate with a cross functional team of technical professionals including software and systems engineers and radar operators to maintain the cybersecurity posture of the Space Fence Radar System. WHO YOU ARE We are looking for individuals who are passionate about cybersecurity and eager to contribute their skills and expertise to our mission. You should have demonstrable knowledge in...
General Dynamics Mission Systems, Inc
Apr 23, 2026
Security Specialist
General Dynamics Mission Systems, Inc Bloomington, MN
Basic Qualifications Bachelor’s degree in Administration of Justice, Criminal Justice, Law Enforcement or related field or the equivalent is required plus a minimum of 2 years relevant experience; or Master's degree. General Dynamics experience is strongly preferred. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire.  Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is important. The challenges we face are career-defining. The opportunity we can offer...
Lockheed Martin
Apr 16, 2026
Cyber Sys Secur Engr Asc Mgr
Lockheed Martin Fort Worth, TX
Description: Company Overview : At Lockheed Martin, we unite passionate individuals to drive purposeful innovation, ensuring safety and solving the world's most complex challenges. Our team comprises some of the brightest minds in the industry, making Lockheed Martin an exceptional place to work. We prioritize our employees by offering diverse career opportunities that promote development and agility. With flexible schedules, competitive pay, and comprehensive benefits, we empower our employees to lead healthy, fulfilling lives both at work and beyond. At Lockheed Martin, we emphasize innovation, integrity, and corporate responsibility. Your mission is ours. Key Responsibilities : At Lockheed Martin we recognize today’s challenges and the need to fuse these disciplines to reshape our future capabilities, enabling us to deliver more autonomous, continuous cyber protection for our classified environments. The Lockheed Martin Aeronautics Emerging Technologies organization is...
Lockheed Martin
Apr 14, 2026
Information System Security Officer
Lockheed Martin MD
Description: Who we are: Lockheed Martin is a pioneer in cyber security—partnering, innovating, and building cutting edge solutions. Our talented employees tackle the world’s toughest engineering challenges every day, leveraging their unique skills and experiences to design and deliver breakthrough technology. We empower our people to think big, perform with excellence, and create extraordinary products. If you have the passion and courage to dream boldly, join our culture and help build a better tomorrow. We provide the resources, inspiration, and focus you need to succeed. What We’re Doing: At Lockheed Martin Rotary and Mission Systems, we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, and education. As a cyber security professional at Lockheed Martin, you'll be part of...
General Dynamics Mission Systems, Inc
Apr 14, 2026
Cyber Security Analyst
General Dynamics Mission Systems, Inc San Antonio, TX
Basic Qualifications Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience.     CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Candidates must be able to obtain a Polygraph within reasonable amount of time.  Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Job Description: Join General Dynamics Mission Systems as a Cybersecurity Analyst in San Antonio, Texas. Contribute to cutting-edge technology supporting national defense and intelligence services. Collaborate with esteemed...
General Dynamics Mission Systems, Inc
Mar 13, 2026
Advanced Security Specialist / CPSO
General Dynamics Mission Systems, Inc Bloomington, MN
Basic Qualifications Bachelor’s degree in Administration of Justice, Criminal Justice, Law Enforcement or related field or the equivalent is required plus a minimum of 5 years relevant experience; or Master's degree plus a minimum of 3 years relevant experience. General Dynamics experience is strongly preferred. CLEARANCE REQUIREMENTS: Ability to obtain a Department of Defense TS/SCI security clearance is required at time of hire.  Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Help make the technologies, products and services that make a difference. That’s the opportunity that’s waiting for you at General Dynamics Mission Systems. We help our nation’s heroes keep our nation safe by creating...
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