• Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled **Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... vulnerability scans, apply security patches, and ensure adherence to established cybersecurity standards + Contribute to DevOps and Agile processes by supporting… more
    ManTech (12/13/25)
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  • Principal Linux Administrator (Top Secret…

    RTX Corporation (Richardson, TX)
    …**Enterprise Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise infrastructure with a ... in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity . The company, formed in 2020 through the combination of Raytheon… more
    RTX Corporation (12/12/25)
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  • Senior Network Administrator

    KBR (Honolulu County, HI)
    Title: Senior Network Administrator Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. + Collaborative Environment: Be part of a dynamic team… more
    KBR (11/27/25)
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  • Senior Systems Administrator (Systems…

    Huntington Ingalls Industries (Hanover, MD)
    …in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity , network architecture, reverse engineering, software and hardware development ... a division of HII, is seeking a highly motivated and experienced System Administrator to join our Minotaur team in Hanover, MD. The ideal candidate will… more
    Huntington Ingalls Industries (11/25/25)
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  • System Administrator 1

    M. C. Dean (San Jose, CA)
    …for the nation's most mission-critical facilities, secure environments, complex infrastructure , and global enterprises. With over 7,000 employees, our capabilities ... the next generation of technical leaders in electrical, engineering, and cybersecurity industries. Responsibilities **What you'll do:** In this role you will… more
    M. C. Dean (11/15/25)
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  • Network Administrator

    Huntington Ingalls Industries (Camp Lejeune, NC)
    …and warfighter readiness. You'll manage servers, workstations, and network infrastructure , apply cybersecurity compliance measures, and troubleshoot technical ... video: https://vimeo.com/732533072 Summary Mission Technologies is seeking a Network Administrator to support the Navy Enterprise Tactical Training Network (NETTN),… more
    Huntington Ingalls Industries (11/12/25)
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  • Intermediate Classified Systems…

    The MITRE Corporation (Bedford, MA)
    …- and make a difference with us. Department Summary: MITRE's Classified Enterprise Infrastructure is looking for a Junior Systems Administrator . A successful ... the government create lasting impact in fields as diverse as cybersecurity , healthcare, aviation, defense, and enterprise transformation. We're making a difference… more
    The MITRE Corporation (11/01/25)
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  • Senior Windows Administrator w/Secret…

    TekSynap (Radford, VA)
    …Plan, execute, and implement new hardware and software across enterprise infrastructure . + Create, update, and enforce team technical instructions, operating ... **REQUIRED QUALIFICATIONS** **Experience** + Five (5) years as a Windows Systems Administrator or Engineer, including 3 years of task automation using PowerShell. +… more
    TekSynap (10/25/25)
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  • System Administrator

    Synergy ECP (Columbia, MD)
    System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Founded in 2007 and headquartered in Columbia, Maryland, Synergy ... ECP is a leading provider of cybersecurity , software and systems engineering and IT services to...maintenance of information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides… more
    Synergy ECP (10/22/25)
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  • Cybersecurity Splunk SOAR Engineer

    General Dynamics Information Technology (Macdill AFB, FL)
    …Top Secret/SCI **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Cybersecurity ,Security Tools,Splunk Phantom ... Architect Certification + Splunk Phantom / SOAR Certified Content Developer or Administrator Certification + Experience with other SOAR platforms (eg, Palo Alto… more
    General Dynamics Information Technology (12/11/25)
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