• Principal Linux System Administrator

    General Dynamics Information Technology (Livermore, CA)
    …Regular ** Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job Family:** IT Infrastructure ... skills and follow through **Security Requirements** + Must have a Top Secret -SCI security clearance **Education and Certification Requirements** + ITIL v3… more
    General Dynamics Information Technology (08/09/25)
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  • Senior System Administrator

    General Dynamics Information Technology (Livermore, CA)
    …Regular ** Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations ... related experience **US Citizenship Required:** Yes **Job Description:** **Systems Administrator /Mission Support Operator -** **$10K Sign-on bonus** *Classified work… more
    General Dynamics Information Technology (06/24/25)
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  • IT Administrator

    Three Saints Bay (Port Hueneme, CA)
    …anti-virus, and intrusion detection services **POSITION REQUIREMENTS:** **REQUIRED QUALIFICATIONS:** + Secret Clearance + Minimum of five years of Cisco ... **IT Administrator (4250)** Location **Port Hueneme, CA** Job Code...+ Administers and supports daily operational requirements of computer network systems including workstation, file servers, and web servers.… more
    Three Saints Bay (07/09/25)
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  • Systems Administrator

    ManTech (San Diego, CA)
    …or related field ** Clearance Requirements:** + US Citizenship required and an active Secret security clearance with the ability to obtain a Top Secret ... **MANTECH** seeks a motivated, career and customer-oriented **Systems Administrator ** to join our team onsite in **San Diego, CA.** This is an **onsite** position.… more
    ManTech (08/29/25)
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  • Senior Linux System Administrator

    GovCIO (Sacramento, CA)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This ... System Security, applying updates and remediating vulnerabilities (or commensurate experience) Active Secret Clearance Required with ability to obtain and hold… more
    GovCIO (08/08/25)
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  • Principal Windows System Administrator

    RTX Corporation (El Segundo, CA)
    …US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** Secret - Current At Raytheon, the foundation ... field and minimum 3 years experience. + Active and transferable US government issued Secret security clearance is required prior to start date. US citizenship is… more
    RTX Corporation (08/21/25)
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  • System Administrator Cross-Platform

    RTX Corporation (El Segundo, CA)
    …as only US citizens are eligible for a security clearance ​ **Security Clearance :** DoD Clearance : Secret At Raytheon, the foundation of everything ... Advanced Degree in a related field. + Active and transferable US government issued Secret security clearance is required prior to start date. US citizenship is… more
    RTX Corporation (07/24/25)
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  • Principal System Administrator

    RTX Corporation (El Segundo, CA)
    …as only US citizens are eligible for a security clearance ​ **Security Clearance :** DoD Clearance : Secret At Raytheon, the foundation of everything ... field and minimum 3 years experience. + Active and transferable US government issued Secret security clearance is required prior to start date. US citizenship is… more
    RTX Corporation (07/15/25)
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  • Systems Administrator

    Synectic Solutions Inc (Oxnard, CA)
    …Active Directory, and network infrastructure is a plus. + Current Top Secret Clearance is required. Synectic Solutions, Inc. is committed to pay transparency ... SSI is seeking experienced Systems Administrator candidates for a contingent opportunity to be...Provide technical support to end-users, resolving hardware, software, and network issues. + Configure and maintain IT equipment, including… more
    Synectic Solutions Inc (08/14/25)
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  • Linux/Windows Senior Systems Administrator

    Lockheed Martin (San Diego, CA)
    …security clearance , you must be a US Citizen for consideration\. ** Clearance Level:** Secret **Other Important Information You Should Know** **Expression of ... Martin is looking for highly motivated, experienced individuals to perform network /system administration and support on a variety of complex platforms supporting… more
    Lockheed Martin (07/12/25)
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