• Argonne National Laboratory (Lemont, IL)
    …granted by the US Department of Energy (DOE). It's functionally equivalent to a ** Top Secret clearance** , allowing access to information classified up to that ... Argonne has an opportunity to serve as the System Administrator of the classified National Security Systems (NSS) for the Security Programs Facility (SPF). Develop,… more
    DirectEmployers Association (11/22/25)
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  • Tyto Athene (Santa Barbara, CA)
    …+ Excellent communication skills. + Onsite support is required. **Clearance:** + Active DoD Top Secret or Top Secret /SCI clearance. Maintain active ... **Description** Tyto Athene is searching for a **Systems Administrator /Information System Security Officer** to join our CA team. **Responsibilities:** + Provide… more
    DirectEmployers Association (12/06/25)
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  • COLSA Corporation (Huntsville, AL)
    …professional experience. + Minimum of 8 years related experience + Active DoD Top Secret Clearance with SCI eligibility; US Citizenship required + Must ... practices, company and agency policies, and regulatory requirements. + Partner with network , security, and other teams to deliver reliable and secure infrastructure… more
    DirectEmployers Association (09/21/25)
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  • Network Administrator , McKinney TX…

    RTX Corporation (Mckinney, TX)
    …US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current ** Network Administrator Senior Analyst - P2** **Raytheon ... Digital Technology** **McKinney TX - ONSITE** **Active Top Secret Clearance required** At Raytheon, the...Data Center Management, Networking and High-Performance Computing. As a Network Administrator (Senior Analyst Level), you will… more
    RTX Corporation (12/05/25)
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  • Network and Computer Systems…

    Deloitte (Baltimore, MD)
    …NCAE designated institution + 3+ years of experience as a network or systems administrator + Active Top Secret security clearance (SCI eligible) + Must ... through innovation. Work You'll Do Join Deloitte as a Network & Server Administrator , where you'll install,...an individual to be hired at or near the top of the range for their role and compensation… more
    Deloitte (11/22/25)
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  • Network Administrator , Sr. Analyst,…

    RTX Corporation (El Segundo, CA)
    …citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current ** Network Administrator , Senior Analyst** **Raytheon Digital ... RTX Corporation Raytheon is looking an experienced Network Administrator , P2 level, with a US DoD Top - Secret clearance to work as part of a collaborative… more
    RTX Corporation (10/22/25)
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  • LINUX Systems Administrator - Active…

    General Dynamics Information Technology (Washington, DC)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** **Linux Systems Administrator ** **- Active Top Secret Required** Seize your ... **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT… more
    General Dynamics Information Technology (12/05/25)
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  • G2 Senior Systems Administrator | Active…

    General Dynamics Information Technology (Fairfax, VA)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** IT Infrastructure ... + STIG compliance. **WHAT YOU'LL NEED TO SUCCEED:** + **Security Clearance Level:** Active Top Secret clearance. (A Secret with a completed T5 Investigation… more
    General Dynamics Information Technology (12/08/25)
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  • Systems Administrator / Top

    Lockheed Martin (Arlington, VA)
    …that requires special access\. The selected candidate must possess an active Top Secret clearance to start\. \#lmatl **Basic Qualifications:** \* In\-depth ... **Description:** You will be the Systems Administrator for the Advanced Concepts Lab \(ACL\) -...Strong oral and written communication skills \* Current final Top Secret clearance and ability to obtain… more
    Lockheed Martin (10/22/25)
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  • NCIS Systems Administrator | Active…

    General Dynamics Information Technology (Quantico, VA)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT ... in ServiceNow. **WHAT YOU'LL NEED TO SUCCEED** + **Security Clearance Level:** Active Top Secret clearance (Must be TS/SCI eligible) + **Required Experience:** +… more
    General Dynamics Information Technology (11/04/25)
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