• 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 ...**Job Family** Professional Technical (PT) **Job Profile** Computing Security 3 **Worker Type** Regular **Time Type** Full time The… more
    DirectEmployers Association (11/22/25)
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  • ABBTECH Professional Resources, Inc. (Reston, VA)
    ** Systems Engineer** **Location- Reston, Va** **Clearance- TS /SCI w/ FSP** **Salary- $200k-$215k/yr** _The above salary range represents the range expected for ... (AWS Certified Architect Associate, AWS Certified Developer Associate, or AWS Certified SysOps Administrator Associate) - 3 + years of C2S experience - Cloud… more
    DirectEmployers Association (10/22/25)
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  • Applied Research Associates, Inc. (Herndon, VA)
    …clusters + **Documentation** : Maintain thorough documentation of infrastructure, systems , and processes **Offer is contingent upon contract award.** **Senior ... + **Must be a US citizen with an active TS /SCI security clearance** + Bachelors degree in a related...in lieu of a degree + **Experience with OpenShift:** 3 + years of hands-on experience managing and administering OpenShift… more
    DirectEmployers Association (09/11/25)
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  • Systems Administrator (Level 2…

    Northrop Grumman (Aurora, CO)
    …they're making history. Northrop Grumman Space Systems (NGSP) seeks to fill a ** Systems Administrator (Level 2 or 3 )** supporting the Integrated National ... 5+ years of relevant experience; OR Master's degree with 3 + years of experience + **Active TS /SCI...SCI classified environment + Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/ 3 -ICD… more
    Northrop Grumman (11/06/25)
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  • Systems Administrator 3

    M. C. Dean (Omaha, NE)
    …including US Citizenship, for access to classified information; **Active Top - Secret /SCI Clearance required.** Responsibilities + Administer both developmental ... requirements, including US Citizenship, for access to classified information; **Active Top - Secret /SCI Clearance required.** + Requires IAT Level 2 **We… more
    M. C. Dean (10/11/25)
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  • Systems Administrator 3

    Huntington Ingalls Industries (Wright Patterson AFB, OH)
    …Huntington Ingalls Industries, Technical Solutions Division (HII-TSD) is currently seeking a Systems Administrator . The ideal candidate works well in an agile, ... Time/Salaried/Exempt Anticipated Salary Range: $76,513.00 - $105,304.00 Security Clearance: Secret Level of Experience: Mid This opportunity resides with Warfare… more
    Huntington Ingalls Industries (09/25/25)
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  • Systems Administrator 3

    Nightwing (Annapolis Junction, MD)
    …in the intelligence community, defense, civil, and commercial markets. The Systems Administrator will provide support for implementation, troubleshooting and ... systems enhancements to improve reliability and performance. System Administrator (SA) shall possess the following capabilities: Provide support for… more
    Nightwing (09/22/25)
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  • Systems Administrator 3

    Huntington Ingalls Industries (Fort Meade, MD)
    …Full Time/Salaried/Exempt Anticipated Salary Range: $87,990.00 - $144,500.00 Security Clearance: TS /SCI with Poly Level of Experience: Mid This opportunity resides ... with Warfare Systems (WS), a business group within HII's Mission Technologies...with network administrators. + Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system… more
    Huntington Ingalls Industries (10/07/25)
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  • System Administrator 3

    M. C. Dean (District Of Columbia, DC)
    …in electrical, engineering, and cybersecurity industries. Responsibilities What you'll do: The Systems Administrator 3 is responsible for the day-to-day ... involves configuring, troubleshooting, and ensuring the reliability, security, and performance of systems and services. The Systems Administrator will… more
    M. C. Dean (11/26/25)
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  • Senior Systems Administrator , Level…

    Lockheed Martin (Dahlgren, VA)
    …to build a better tomorrow with you\! The DARKWING Program is seeking a highly motivated Systems Administrator to join our team in La Plata, MD\. The System ... systems and hardware\. Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance, installing… more
    Lockheed Martin (11/19/25)
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