• Network Security Engineer

    General Dynamics Information Technology (Alexandria, VA)
    …**Job Description:** Advance your career while impacting our national security in cyber as a **Network Security Engineer Senior** at GDIT. Here, ... across the federal government. We are seeking a dedicated and knowledgeable **Network Security Engineer Senior** to join our dynamic team. The ideal candidate… more
    General Dynamics Information Technology (11/05/25)
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  • Cloud Security Engineer SME - TS/SCI…

    General Dynamics Information Technology (Herndon, VA)
    …NEED TO SUCCEED:** + Education: Technical Training, Certification(s) and/or Degree ( Cyber Security , Computer Science, Information Technology, etc.) + Required ... to the client's Cyber and Cloud technology program(s). **HOW A CLOUD ENGINEER , SME WILL MAKE AN IMPACT** You will consult with customers/clients regarding the… more
    General Dynamics Information Technology (10/13/25)
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  • Senior Information System Security

    Leidos (Alexandria, VA)
    …is at the forefront of next-generation technology, architecting cutting-edge solutions in cyber defense , logistics optimization, security operations, and ... Digital Modernization Sector at Leidos is seeking a dynamic **Information Systems Security Engineer (ISSE)** to support cloud modernization initiatives for the… more
    Leidos (10/18/25)
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  • Security Engineer

    Serco (Virginia Beach, VA)
    …the United States Navy - Serco has a great opportunity for you! This Information Security Test Engineer will be on a dynamic team responsible for testing afloat ... your expertise and collaborative skills to make an impact towards our national security homeland defense . **This position is contingent upon your ability to… more
    Serco (11/13/25)
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  • ACAS Engineer - Active Top Secret Clearance…

    ENS Solutions (Norfolk, VA)
    …computer systems. Engineer , design, develop, and implement enterprise network cyber defense capabilities to prevent sophisticated cyber threats. ... with the utilization, configuration, and implementation of cyber defense capabilities, including web content filters, email security capabilities,… more
    ENS Solutions (09/27/25)
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  • Cleared Information Systems Security

    Virtual Service Operations (Lorton, VA)
    …and compliance gaps. + Engineer unique cybersecurity solutions to support Cyber Threat and Defensive Operations. + Automate security monitoring, threat ... Cleared Information Systems Security Engineer (ISSE) L3 * Lorton,...and sustainment of secure enclaves, providing enterprise services and cyber network defense capabilities. As an ISSE,… more
    Virtual Service Operations (10/04/25)
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  • Lead, Information Security Systems…

    L3Harris (Ashburn, VA)
    … domains in the interest of national security . Job Title: Anti-Tamper System Security Engineer (Secret Security Clearance) Job Code: 30715 Job Location: ... 5200.39 for the identification and protection of CPI. + Engineer trustworthy and secure systems in accordance with NIST...Additional Skills: + Experience in configuration and use of cyber defense and vulnerability assessment tools such… more
    L3Harris (11/01/25)
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  • Information Systems Security

    Tyto Athene (Reston, VA)
    **Description** Tyto Athene is searching for an **Information Systems Security Engineer .** The Information Systems Security Engineer provides technical ... support teams to coordinate setup and deployment + Attending cyber security related events and networking with...over 50 years of experience, Tyto Athene proudly support Defense , Intelligence, Space, National Security , Civilian, Health,… more
    Tyto Athene (11/25/25)
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  • Cleared Senior Information Systems Security

    Virtual Service Operations (Lorton, VA)
    …and cyber network defense capabilities. As aSenior Information System Security Engineer (ISSE), you will provide expert engineering support to ensure the ... Cleared Senior Information Systems Security Engineer (ISSE) L4 * Lorton,...vulnerabilities, compliance gaps, and recommend mitigations. + Architect and engineer innovative solutions to support ongoing Cyber more
    Virtual Service Operations (11/09/25)
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  • Sepio Security Engineer

    Leidos (Arlington, VA)
    **Description** We are seeking a highly skilled and motivated Sepio Engineer to join our cybersecurity team. In this pivotal role, you will be responsible for ... designing, implementing, and maintaining security measures, with a specific focus on leveraging the...safeguarding our organization's physical and digital assets from evolving cyber threats by ensuring comprehensive device visibility and policy… more
    Leidos (11/25/25)
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