• System Administrator , High Performance…

    RTX Corporation (Tucson, AZ)
    …Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior ... for a security clearance​ **Security Clearance:** Secret - Current **System Administrator , High Performance Computing (HPC) - P2** **Senior Analyst Level**… more
    RTX Corporation (10/24/25)
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  • Sr Principal Linux Systems Administrator

    Northrop Grumman (Boulder, CO)
    …+ Cisco experience and/or certifications + Windows server management experience + Windows Active Directory , VMWare, and/or knowledge of NFS storage systems + ... not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively at all levels of… more
    Northrop Grumman (12/12/25)
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  • Systems Administrator

    Guidehouse (Bethesda, MD)
    …and *beats + Experience with Windows Systems Administration and troubleshooting Active Directory + Experience establishing large computer end-point environments ... Family** **:** Systems Engineering **Travel Required** **:** None **Clearance Required** **:** Active Top Secret SCI (TS/SCI) **What You Will Do:** + Perform Linux… more
    Guidehouse (12/10/25)
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  • Principal Storage & Data Protection System…

    RTX Corporation (Marlborough, MA)
    …Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior ... systems in Classified areas. **What You Will Do** : + System Administrator for Storage and Data Protection, across a geographically distributed, mission-critical… more
    RTX Corporation (12/05/25)
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  • Systems Administrator - Tier 3 Support

    GovCIO (Fairfax, VA)
    …+ Use tools and technologies as follows: Office 365 ProPlus, PowerShell, Azure, Active Directory , and vSphere; well versed on infrastructure tools and ... **Overview** GovCIO is currently hiring for a System Administrator - Tier 3 Support with an active Secret clearance in support of our DEA Bluestone program.… more
    GovCIO (12/02/25)
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  • Linux Systems Administrator 1/2

    Northrop Grumman (Redondo Beach, CA)
    …+ Rudimentary Scripting experience with Bash and/or Ansible + Knowledge of Windows Active Directory and VMWare ESXi + Knowledge of enterprise monitoring tools ... Northrop Grumman Enterprise Services is seeking a **Linux Systems Administrator .** This role can be performed by a level...CE) within 6 months. + Candidates must have an active DOD Secret level security clearance **Basic Qualifications for… more
    Northrop Grumman (11/21/25)
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  • Data Analytics Visualization Administrator

    BigBear.ai (Annapolis Junction, MD)
    …Familiarity with Windows, Linux, and scripting for automation. + Experience configuring Active Directory , SAML, and PKI authentication. + Background in ... At BigBear.ai we're seeking a highly skilled Visualization Tool Administrator /Integrator to support, optimize, and secure our enterprise analytics...is the role for you. Required to have an Active TS/SCI with poly clearance. What you will do… more
    BigBear.ai (11/20/25)
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  • Principal Windows Systems Administrator

    RTX Corporation (El Segundo, CA)
    …the following: Windows, VMWare + Experience with DHCP, Group Policy, DNS, Active Directory , File Shares, WSUS, Scripting, Backups **Qualifications We Prefer:** ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (11/18/25)
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  • Database Administrator III

    RTX Corporation (Chesapeake, VA)
    …manage data security protocols, including access controls and encryption with Active Directory account management and two-factor authentication implementation + ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (10/15/25)
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  • Systems Administrator

    Leidos (Piketon, OH)
    …of the IT server infrastructure and hosted systems, focusing on areas like Active Directory , permissions, storage, Group Policy, etc. + Support first-tier ... Leidos has an exciting and rewarding opportunity for a Systems Administrator to work independently with minimal supervision providing systems administration for… more
    Leidos (12/12/25)
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