• Systems Administrator - Senior

    CACI International (O'Fallon, IL)
    Systems Administrator - Senior Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... systems (eg, Windows Server, Linux, Unix) + Advanced expertise in network protocols, services, and infrastructure + Proven experience with virtualization… more
    CACI International (11/08/25)
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  • Cloud Systems Administrator

    CACI International (Laurel, MD)
    Cloud Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... VMware, or AWS. + Ability to troubleshoot SSH, performance, and network -related issues. + Experience with security hardening (STIG, STE/STN) and compliance… more
    CACI International (10/16/25)
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  • M365 Administrator Engineer

    CACI International (Rising City, NE)
    M365 Administrator Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of ... and troubleshooting complex incidents. **Responsibilities:** * Collaborate with architects, network engineers and security specialists to test and deploy power… more
    CACI International (10/08/25)
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  • System Administrator Lead

    System One (Mclean, VA)
    Job Title: System Administrator Lead Location: Arlington, Virginia Type: Contract To Hire Contractor Work Model: Onsite Security Clearance: Top Secret w/ SCI ... NIPRNET, SIPRNET, JWICS, and Special Access Systems. * Support replication of network file share volumes via Distributed File System with Replication (DFS-R) between… more
    System One (12/18/25)
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  • Systems Administrator 1

    Huntington Ingalls Industries (Suffolk, VA)
    …a division of Huntington Ingalls Industries, is looking for a Systems Administrator 1 to support the Joint Training Synthetic Environment (JTSE) Joint Staff ... J7(JS J-7) contract at our Suffolk, VA Joint Staff Complex. What...the smooth operation of multi-user computer systems, coordinating with network administrators as needed. * Monitor, maintain, and support… more
    Huntington Ingalls Industries (12/15/25)
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  • Sr Principal Linux Systems Administrator

    Northrop Grumman (Boulder, CO)
    …but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract . + Communicate effectively at all ... By joining in our shared mission, we will support yours by expanding your personal network and developing skills, whether you are new to the field or an industry… more
    Northrop Grumman (12/12/25)
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  • Senior Systems Administrator

    SAIC (Fort Meade, MD)
    …on programs of national importance. **Join SAIC on this newly awarded, 5-year contract where you can** **grow your career in a dynamic and supportive environment!** ... The Systems Administrator (SA) will provide support for implementation, troubleshooting, and...operations, monitoring and problem resolution for all of the client/server/storage/ network devices, mobile devices, etc. + Optimize system operations… more
    SAIC (11/17/25)
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  • Microsoft System Center Service Manager…

    US Tech Solutions (Columbia, SC)
    **Duration: 12 months contract (with possible extension)** Note: This role is open to someone who can relocate at their own expenses to Columbia** **Why is this ... **Scope of the project:** Seeking an experienced System Center Service Manager administrator . The primary focus of this role is maintaining System Center… more
    US Tech Solutions (11/06/25)
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  • System Administrator - Active Secret…

    ENS Solutions (MD)
    This role is contingent upon Contract Award The System Administrator supports secure and resilient operations of PKI infrastructure and associated systems for an ... such as STIG Viewer, eMASS, and HBSS is a plus. Benefits Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly regarded IT… more
    ENS Solutions (10/31/25)
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  • Senior Linux Administrator Team Lead

    General Dynamics Information Technology (Falls Church, VA)
    …**US Citizenship Required:** Yes **Job Description:** **HOW A LINUX SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support for ... and usage charts, including CPU usage, disk usage and network uptime for the Linux Servers. + Provide general...and/or RHEL 8) When 8140 requirements are implemented on program/ contract , employee will need to conform to 8140 certification… more
    General Dynamics Information Technology (10/25/25)
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