• Senior Information System Security Officer

    The MITRE Corporation (Mclean, VA)
    …senior ISSO , maintain operational security posture to ensure information systems (IS), security policies, standards, and procedures are established and followed. ... other security documentation. + Serve as the Senior Information Systems Security Officer ( ISSO ), maintaining operational security...policy changes. + Previous experience operating as a SCI/SAP ISSO , ISSE, System Administrator , or ISSM. +… more
    The MITRE Corporation (12/18/25)
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  • System Administration - Tiered Support

    CACI International (Annapolis Junction, MD)
    …join our team and help maintain, troubleshoot, and optimize a wide variety of IT systems . We are seeking a qualified System Administrator to provide support for ... the implementation, troubleshooting, and maintenance of IT systems across client/server, storage, network devices, mobile devices, and more. In this role, you will… more
    CACI International (11/19/25)
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  • Information System Security Engineer (ISSE) II

    Excentium (Philadelphia, PA)
    …System Security Engineer (ISSE) II will act as the front-line system administrator supporting Naval Surface Warfare Division (NSWD) systems and applications. ... This position will support the CIO, ISSM, ISSO and validator with the maintenance and enhancement of...validator with the maintenance and enhancement of Navy Band systems and architecture to achieve and maintain Certification and… more
    Excentium (10/01/25)
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  • Senior Cyber Risk Manager (Splunk Engineer)

    The MITRE Corporation (Mclean, VA)
    …security posture, and policy changes. + Previous experience operating as a SCI/SAP ISSO , ISSE, System Administrator , or ISSM. + Strong analytical and ... Division (R300) is looking to fill a Senior Information Systems Security Engineer position, with a focus on classified...related experience with a BS in Computer Science; or 3 years and a Master's degree; or a PhD;… more
    The MITRE Corporation (11/08/25)
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  • Cybersecurity Engineer

    Steampunk (Mclean, VA)
    …the product being deployed and/or maintained. **Preferred** + Former Developer or Systems Administrator experience + Working knowledge of technologies used for ... enterprise knowledge base + Support Information System Security Officers ( ISSO ) with activities such as security scan analysis and...a US government Security Clearance + Master's Degree and 3 years of relevant experience; OR + Bachelor's Degree… more
    Steampunk (11/11/25)
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  • Tech Ops Officer

    Nightwing (Sterling, VA)
    …Degree in Engineering or Education or equivalent + Security certifications (eg ISSO , System Administrator , etc.) **Travel Qualifications:** + Ability to support ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers'… more
    Nightwing (12/16/25)
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