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21 senior security engineer jobs found

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SAIC
Jun 01, 2026
Senior Security Engineer
SAIC ME
Description SAIC is seeking a Senior Security Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. W ork is performed on site in Kittery, ME. Role : Actively monitor, detect, and respond to cybersecurity threats and incidents within an organization. Utilize advanced security tools and technologies, such as Host-Based Security System (HBSS) and Security Information Event Management (SIEM) platforms, to continuously monitor network traffic, identify vulnerabilities, and detect suspicious activities. Conduct thorough investigations of security incidents, implement incident response protocols, and coordinate remediation efforts to mitigate potential risks. Collaborate with IT teams...
SAIC
Jun 01, 2026
Senior Cyber Engineer
SAIC ME
Description SAIC is seeking a Senior Security Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. Work is performed on site in Kittery, ME. Role: Architects, plans, configures, deploys, maintains, and upgrades COTS/GOTS and custom toolsets to address vulnerabilities and/or implement security controls. Applies a combination of expert engineering knowledge of enterprise IT and security solutions to design, develop and/or implement solutions to ensure they are consistent with enterprise architecture security policies and support full spectrum military cyberspace operations. Designs, tests, and implements secure operating systems, networks, security monitoring, tuning and...
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
Jun 17, 2026
Cyber Security Analyst - SIEM Engineer
General Dynamics Mission Systems, Inc San Antonio, TX
Basic Qualifications Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree plus a minimum of 6 years of relevant experience.   CLEARANCE REQUIREMENTS: Current or active Department of Defense Top Secret clearance with SCI eligibility required with ability to obtain a Polygraph 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   We are seeking a highly skilled and experienced Cyber Security Analyst / SIEM Engineer to join our SPRINT Next program team in San Antonio, Texas . In this position, you will serve as a security engineer responsible for administering and...
General Dynamics Mission Systems, Inc
Jun 16, 2026
FPGA Engineer
General Dynamics Mission Systems, Inc Bloomington, MN
Basic Qualifications Bachelor’s degree in Electrical or Computer Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree and 3 years of job-related experience.   CLEARANCE REQUIREMENTS: Ability to obtain a 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 General Dynamics Mission Systems has an immediate opening for an Advanced FPGA Engineer located in our Bloomington, MN location.   Duties and Tasks: Responsible for definition, design, verification and documentation for Advance FPGA (Field Programmable Gate...
General Dynamics Mission Systems, Inc
Jun 15, 2026
Senior Network Cyber Engineer
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months 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 Senior Network and Cyber System Engineer on the MIT team, you will execute cybersecurity operations and network engineering tasks across secure environments. This is a dual-role position split evenly between cybersecurity engineering and network engineering. You will contribute to...
General Dynamics Mission Systems, Inc
Jun 10, 2026
Linux Integration and Test Engineer
General Dynamics Mission Systems, Inc San Antonio, TX
Basic Qualifications Master's degree, plus 6 years of relevant experience. Bachelor's degree in a specialized area or equivalent relevant experience is required; plus, a minimum of 8 years of relevant experience.   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 Job Opportunity: Linux Integration and Test Engineer at General Dynamics Mission Systems Position Overview: Join our team to help create mission-critical systems that keep people safe. As a Linux Integration and Test Engineer, you'll play a crucial role in configuring, troubleshooting, and ensuring the seamless integration of...
SAIC
Jun 01, 2026
Security Engineer
SAIC ME
Description SAIC is seeking a Security Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. Work is performed on site in Kittery, ME. Role : Actively monitor, detect, and respond to cybersecurity threats and incidents within an organization. Utilize advanced security tools and technologies, such as Host-Based Security System (HBSS) and Security Information Event Management (SIEM) platforms, to continuously monitor network traffic, identify vulnerabilities, and detect suspicious activities. Conduct thorough investigations of security incidents, implement incident response protocols, and coordinate remediation efforts to mitigate potential risks. Collaborate with IT teams to...
SAIC
Jun 01, 2026
Senior Information Systems Security Officer
SAIC VA
Description SAIC is seeking a motivated and skilled Senior Information Systems Security Officer (ISSO) to support cybersecurity and compliance activities for mission-critical IT systems on the MAJESTIC Joint Program Office (JPO) Team . In this role, the ISSO will be responsible for implementing, managing, and assessing system security controls to ensure compliance with government regulations, standards, and best practices, including NIST 800-53 , RMF , and other federal security policies. The ideal candidate will work closely with system owners, administrators, and cross-functional security teams to assess risks, maintain security postures, and ensure the confidentiality, integrity, and availability of information systems that support the mission. This role requires on-site support in Springfield, VA . Key Responsibilities: Ensure compliance with Risk Management Framework (RMF) requirements by developing, maintaining, and assessing system security artifacts,...
SAIC
May 20, 2026
Senior Desktop Engineer with macOS focus
SAIC VA
Description 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 Space and Intel (AFSI) Business Group of SAIC is seeking a Senior Desktop Engineer with macOS focus to support a transformational infrastructure program for DCSA out of Quantico, VA. 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. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secured and adaptable IT...
General Dynamics Mission Systems, Inc
May 18, 2026
Senior Principal ASIC FPGA Engineer
General Dynamics Mission Systems, Inc Boise, ID
Basic Qualifications Education Requirements: Bachelor's degree in Electrical or Computer Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 10 years of relevant experience; or Master's degree plus a minimum of 8 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 Duties and Tasks: Responsible for definition, design, verification and documentation for ASIC (Application Specific Integrated Circuit) and/or FPGA (Field Programmable Gate Array) developments Determines architecture, system simulation and detailed design...
LMI
May 08, 2026
Cybersecurity Information System Security Officer (ISSO)
LMI Remote, UNAVAILABLE
Overview LMI is seeking a Cybersecurity Information System Security Officer (ISSO) with demonstrated experience managing the security posture of DoD information systems to support a United States Special Operations Command (USSOCOM) mission partner. 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 outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that...
General Dynamics Mission Systems, Inc
Apr 30, 2026
Information Assurance Engineer
General Dynamics Mission Systems, Inc Boulder, CO
Basic Qualifications Bachelor's degree in Engineering, or a related Science or Mathematics field, 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 Information Assurance Engineer Join the team at General Dynamics Mission Systems, where we protect what matters most.   What You’ll Experience Build and maintain security artifacts like Risk Management Framework (RMF) security plans, testing plans, and System Impact Analyses to ensure compliance, readiness, and...
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....
General Dynamics Mission Systems, Inc
Apr 27, 2026
Embedded Software Engineer (cleared)
General Dynamics Mission Systems, Inc Scottsdale, AZ
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree, plus 6 years 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 Senior Embedded software engineer for Secure Voice Products, you’ll be a member of a cross functional team responsible for developing security software for cutting-edge secure voice products.   We encourage you to apply if you have any of these preferred skills or...
General Dynamics Mission Systems, Inc
Apr 14, 2026
Senior Systems Engineer
General Dynamics Mission Systems, Inc Scottsdale, AZ
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience. Agile experience preferred.     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 We are seeking a Systems Security Engineer who has experience in the design and development of NSA-certified Cybersecurity devices.     Key Responsibilities: Design and develop specifications for mission-critical NSA-certified Cybersecurity devices...
SAIC
Apr 08, 2026
Security Policy Engineer
SAIC VA
Description SAIC is looking for a qualified Security Engineer (ISSO) to join an exciting program in Springfield, Virginia. Individual will be responsible for providing systems security support for the protection of multi-level information system assets. Responsibilities include: Provide ongoing security oversight of assigned systems. Manage documentation of security plans and procedures for all assigned systems in adherence to USG information technology security policies and instructions. Support Assessment and Authorization (A&A) / Risk Management Framework (RMF) for new and existing systems. Coordinate requirements and deployment of capabilities working with system operations. Interact professionally with senior-level executives and work on a team or independently, prioritizing and accomplishing assigned tasks in a fast-paced environment with deadlines. Execute and complete rapid turn-around and short-suspense tasks. Qualifications SAIC is...
General Dynamics Mission Systems, Inc
Feb 25, 2026
Senior ASIC Digital Design Engineer
General Dynamics Mission Systems, Inc MD
Basic Qualifications Education Requirements: Requires a Bachelor’s degree in Electrical or Computer Engineering, or a related Science, Engineering, 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: Ability to obtain a 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 Knowledge, Skills and Abilities:   What You’ll Get to Do : Lead a team of digital design engineers to create a security system on a chip. Collaborate with team members and across teams to explore and clearly identify real...
Lockheed Martin
Jun 02, 2026
Program Security / Physical Security Representative - Mid Level
Lockheed Martin Fort Worth, TX
Description: Lockheed Martin Aeronautics. Be Mare Than You Can Imagine. Lockheed Martin's aircraft leadership is earned through relentless research and development of high-performance combat, air mobility and reconnaissance and surveillance aircraft. We also provide world-class training, focused logistics support, and advanced targeting and navigation technologies to enable the right people with the right skills to be in the right place at the right time with the right information and the right munitions to accomplish their missions. The primary mission of the Security and Emergency Services (SES) organization is to mitigate risk and promote the safety and security of company personnel and assets, and to ensure compliance with U.S. government and other customer security requirements in support of U.S. national security interests. SES is looking for an energetic Security Representative Senior to support the Integrated Fighter Group (IFG) by performing physical security duties...
General Dynamics Mission Systems, Inc
May 28, 2026
Security Specialist
General Dynamics Mission Systems, Inc Marion, VA
Basic Qualifications Bachelor's degree in a related field or the equivalent combination of education and relevant work experience is required plus a minimum of 2 years of relevant experience; or Master's degree.   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 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 is one-of-a-kind. We apply advanced technologies such as...
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