• Authorization & Accreditation (A&A) Program Lead…

    ICF (Alexandria, VA)
    …and documentation specialists. + Develop and maintain key RMF artifacts including Security Assessment Plans (SAPs), System Security Plans (SSPs), Security ... and completeness. + Interface with Authorizing Officials (AOs), Information System Security Managers (ISSMs), and Information System Security Officers (ISSOs)… more
    ICF (10/31/25)
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  • Cyber Security Analyst

    ManTech (Herndon, VA)
    MANTECH seeks a motivated, career and customer-oriented **Cyber Security Analyst** to join our team **onsite** in **Herndon, VA or Reston, VA** in support of a ... customer's accreditation process for ATO + Work closely with Security Engineers to ensure security solutions are... protocols to drive tasking and ensure compliance + ISSE/ ISSO tasking in support of documenting and navigating the… more
    ManTech (08/20/25)
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  • 309 - Information Systems Security Officer…

    ARSIEM (Fort Meade, MD)
    …client you work with. ARSIEM is looking for an Information Systems Security Officer supporting the Signals Analysis Division with maintaining compliance and ... strengthening the security posture of critical mission systems via the Risk...for periodic reaccreditation. Minimum Qualifications + Experience as an ISSO with emphasis on Defense-in-Depth principles, network, and enterprise… more
    ARSIEM (10/30/25)
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  • Information Systems Security Manager

    Leidos (Bethesda, MD)
    …energetic, motivated, self-starter for this technically sophisticated and challenging information security position, supporting the development of a variety of naval ... . This position is part of the HFS cyber security team, and is responsible for maintaining and improving...of this position * Must have previous ISSM or ISSO experience * Must have Linux operating system experience… more
    Leidos (10/23/25)
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  • Information Assurance Subject Matter Expert

    Electrosoft (Washington, DC)
    …Subject Matter Expert + Support the program and contractor Program Manager in security matters and their internal chain of command will be separate from the ... on all technical and policy matters related to Information Assurance. + Act as backup for ISSO . The IA SME will maintain the same level of access as ISSO . Basic… more
    Electrosoft (08/21/25)
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  • Functional Analyst 2- TS/SCI with Poly

    Amentum (Columbia, MD)
    …required resources to enable creation, registration, and assignment of System Security Plans (SSPs) in conjunction with Delegated + Authorizing Officials (DAOs), ... ISSO 's, and System Owners. + Review and update organizational...organizational documentation that affect Cybersecurity requirements + Collaborate with Security Control Assessors to identify and execute system testing… more
    Amentum (08/13/25)
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  • SIPRNet Administrator

    CACI International (Reston, VA)
    …Join a dynamic environment at CACI where your contributions directly influence national security . + Engage in challenging and impactful work that makes a tangible ... + Work on innovative projects that impact our nation's security . + Contribute to a company with a strong...associated with scans of network devices. + Coordinate with ISSO /ISSM to update POA&M and reflect open vulnerabilities associated… more
    CACI International (08/08/25)
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  • ISSE

    Lentech, Inc (Hanover, MD)
    …high-profile intelligence community clients. We currently have a unique opportunity for an ISSE/IA/ ISSO with expertise in Information Systems Security to join a ... interested in tackling some of the nation's most critical challenges in systems security and vulnerability? Would you consider joining a leading team dedicated to… more
    Lentech, Inc (08/13/25)
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  • ​​Assessment & Authorization (A&A) Analyst​

    Leidos (Ashburn, VA)
    **Description** Department of Homeland Security (DHS), Customs and Border Protection (CBP) Security Operations Center (SOC) is a US Government program ... threats to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including local area networks/wide area… more
    Leidos (11/01/25)
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  • Vulnerability Assessment (VA) Team Lead

    TekSynap (Ashburn, VA)
    …compliance validation; briefing leadership on current and future vulnerabilities, security policies and industry standards; briefing leadership on most impactful ... to support targeted incident investigation, escalation, and emergency response to security events in accordance with documented procedures. Assist the Government in… more
    TekSynap (09/02/25)
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