• Information System Security Engineer - Senior

    Amentum (Warrenton, VA)
    …so, look no further. Amentum is seeking a Senior Information System Security Engineer ( ISSE ) to join our team of passionate individuals in Warrenton, VA. In this ... The duties and responsibilities of the Senior Information System Security Engineer ( ISSE ) include, but are not limited to, the following: * Experience creating… more
    Amentum (12/05/25)
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  • Navy Qualified Validator (NQV)

    Frontier Technology Inc. (Norfolk, VA)
    …(AODR). + Required to engage with the system Information Systems Security Engineer ( ISSE ) and ISSE support staff throughout the RMF process. + Responsible ... for validation events for all OPTEVFOR cyber OT&E infrastructure and toolset. + Maintain thorough and current knowledge of RMF and A&A process and standards. + Work closely with system owners, technical leads, cybersecurity staff, and other stakeholders to… more
    Frontier Technology Inc. (12/02/25)
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  • Information System Security Specialist II

    Watershed Security (Virginia Beach, VA)
    …cybersecurity vulnerability and threat analysis; and be experienced as an ISSE . REQUIRED QUALIFICATIONS + Bachelor of Science in Information Systems, Bachelor ... Framework Step 5 authorizations in the Information System Security Engineer ( ISSE ) capacity + Communicating risk reduction recommendations to stakeholders. +… more
    Watershed Security (10/30/25)
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  • Information System Security Specialist II

    TekSynap (Virginia Beach, VA)
    …(RMF) Step 5 authorizations as an Information System Security Engineer ( ISSE ). + Provide security risk mitigation recommendations and guidance to stakeholders. ... + Ensure compliance with DoD 8570.01-M IAM Level II certification requirements and other relevant regulations. **REQUIRED QUALIFICATIONS** + Active Secret security clearance + Bachelor's degree in Information Systems, Information Technology, Computer Science,… more
    TekSynap (12/30/25)
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  • System Administrator

    CACI International (Chantilly, VA)
    …diagrams, standard operating procedures, and system documentation. + Coordination with customer ISSE to ensure security accreditation of all project IT systems. This ... includes writing documentation and plans to successfully navigate ICD 503 and customer's unique security requirements. + Troubleshoots and resolves hardware, software, and communications problems. Required qualifications: + **TS/SCI with Polygraph** +… more
    CACI International (12/29/25)
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  • Classified Systems Information Systems Security…

    ANSER (Arlington, VA)
    …Qualifications: + Active TS/SCI clearance + 8+ years of experience as an ISSO, ISSE , or ISSM + 5+ years of experience in systems/network administration within a ... secure environment. + Strong familiarity with RMF, NIST 800-53, and other DoD cybersecurity compliance standards. + Experience with Windows Server, Active Directory, GPOs, and system hardening. + Proficiency in network protocols and services: TCP/IP, DNS,… more
    ANSER (12/27/25)
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  • ISSO

    SAIC (Chantilly, VA)
    …+ **7+ years of Information Security experience. Preferrable as an ISSO, ISSE , or DAOR.** + **Demonstrated experience implementing the RMF process, applying NIST ... 800‑53 controls, and developing/maintaining certification and accreditation documentation.** + **Experience with ICD‑503 RMF implementation within the Intelligence Community.** + **Prior experience supporting cybersecurity operations or compliance within the… more
    SAIC (12/20/25)
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  • Senior Information System Security Officer

    The MITRE Corporation (Mclean, VA)
    …and policy changes. + Previous experience operating as a SCI/SAP ISSO, ISSE , System Administrator, or ISSM. + Strong analytical and problem-solving skills, with ... the ability to develop innovative solutions. + Experience mentoring junior staff and fostering a collaborative team environment. + Familiarity with insider threat programs and strategies for mitigating insider risks. + Expertise in conducting cybersecurity… more
    The MITRE Corporation (12/18/25)
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  • Information Systems Security Officer

    CACI International (VA)
    …as an Information System Security Manager (ISSM), Information Systems Security Engineer ( ISSE ), and/or Information Systems Security Officer (ISSO). + At least five ... years of continuous recent experience performing information systems security and/or cybersecurity roles in IT projects and obtaining ATO/ATC. + At least five years of continuous recent experience in DoD enterprise Mission Assurance Support Service (eMASS). +… more
    CACI International (12/18/25)
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  • Security Engineer/Architect (Hybrid)

    Huntington Ingalls Industries (Fort Belvoir, VA)
    …is required; US Citizenship required. + 9+ years of experience as an ISSE or security-focused software / systems engineer with large multi-tiered programs and ... Bachelors in related field; OR 7 years relevant experience with Masters in related field; OR High School Diploma or equivalent and 13 years relevant experience. + Experience implementing DoD system accreditation processes (DIACAP acceptable and RMF preferred).… more
    Huntington Ingalls Industries (12/12/25)
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