• IT Linux Systems Administrator

    SpaceX (Hawthorne, CA)
    IT Linux Systems Administrator - Top Secret ...both formal and informal situations. ADDITIONAL REQUIREMENTS: + Active Top Secret or TS / SCI ... human life on Mars. IT LINUX SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE...Docker, etc). + Comfortable working with mission critical and sensitive systems, with a sense of urgency appropriate to… more
    SpaceX (08/08/25)
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  • Senior Linux System Administrator

    BAE Systems (San Diego, CA)
    …**Required Education, Experience, & Skills** US Citizenship is required by contract. Active US Top Secret Security Clearance / SCI is required with the ... career with BAE Systems. BAE Systems is seeking a Senior Closed Area Linux Systems Administrator to provide comprehensive technical and operational support for… more
    BAE Systems (09/18/25)
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  • Principal Linux System Administrator

    General Dynamics Information Technology (Livermore, CA)
    …ID:** RQ192592 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... listening skills and follow through **Security Requirements** + Must have a Top Secret - SCI security clearance **Education and Certification Requirements**… more
    General Dynamics Information Technology (08/09/25)
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  • Sr Principal HPC Linux Systems…

    Northrop Grumman (Redondo Beach, CA)
    … systems. **Preferred Qualifications:** + Bachelor's degree in Information Technology + Active Top Secret , TS / SCI , Polygraph, or SAP/SAR access would ... Northrop Grumman Classified Solutions team is seeking a senior ** Linux Systems Administrator ** to join its dynamic...have the ability to obtain, and maintain, a DOD ** Top Secret ** level security clearance as a… more
    Northrop Grumman (09/11/25)
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  • Principal Linux Systems…

    RTX Corporation (El Segundo, CA)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with CI Poly - Current At Raytheon, the foundation of ... that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many teams...Must have an active a transferable US government issued TS / SCI CI Poly security clearance or prior… more
    RTX Corporation (09/09/25)
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  • IT Systems Administrator - Top

    SpaceX (Hawthorne, CA)
    IT Systems Administrator - Top Secret Clearance...both formal and informal situations. ADDITIONAL REQUIREMENTS: + Active Top Secret or TS / SCI ... goal of enabling human life on Mars. IT SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE...addition to broader experience and capability with networking and Linux technologies. This employee will be a member of… more
    SpaceX (07/12/25)
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  • TS / SCI Low Band System Software…

    Insight Global (Beale AFB, CA)
    …position with an extension possible that requires an active TSSCI clearance or a Top - Secret clearance with SCI eligibility. This is an on-site position ... Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/. Skills and Requirements - Active TS / SCI clearance - Security + Certification -… more
    Insight Global (09/23/25)
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  • Sr. Specialist Cyber Infrastructure Engineer

    L3Harris (Carlsbad, CA)
    …+ Active Secret clearance required; ability to obtain and maintain a Top Secret / SCI clearance post-hire. Preferred Skills\Qualifications: + Minimum ... Secret clearance with the ability to obtain Top Secret post-hire Qualifications: + Bachelor's degree...outputs and drive remediation. + Extensive background as a Linux System Administrator in secure, classified environments,… more
    L3Harris (09/25/25)
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  • Senior System Administrator (MSO)

    General Dynamics Information Technology (Livermore, CA)
    …RQ207481 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret / SCI **Public Trust/Other Required:** None **Job Family:** IT ... 8+ years of directly related experience in IT / Network administration and support. + TS / SCI or DoE Q Clearance + Experience with monitoring tools such as… more
    General Dynamics Information Technology (09/20/25)
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  • SIGINT Systems Administrator (Low-Band…

    CACI International (Beale AFB, CA)
    SIGINT Systems Administrator (Low-Band Journeyman) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI ... * * * CACI is seeking a SIGINT Systems Administrator (Low-Band Journeyman) to join the CACI team at...onsite at Beale AFB, CA and have an active/current TS / SCI prior to hire. **Responsibilities:** + Manages/supports… more
    CACI International (07/18/25)
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