• Senior Systems Administrator

    ManTech (Fairmont, WV)
    **MANTECH** seeks a motivated and customer-oriented **Senior Systems Administrator - Windows/Linux Dual-Stack Specialist** to join our team in **Boulder, CO** . ... and Mitigation (CDM) practices. **Preferred Qualifications:** + Microsoft Certified Systems Administrator /Engineer (MCSA/MCSE) or equivalent (eg, Azure … more
    ManTech (11/05/25)
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  • Senior Windows Systems Administrator

    Leidos (Arlington, VA)
    Systems Security Certified Practitioner (SSCP) ) Training (DISA-US1390 DCWF Windows Systems Administrator ). + Expert knowledge of Windows Active Directory ... **Description** The Leidos Digital Modernization Sector is seeking a **_Senior Windows Systems Administrator_** in support of the Air Force National Capital (AFNCR)… more
    Leidos (01/07/26)
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  • Systems Administrator

    CACI International (Linthicum, MD)
    …availability of customer systems . We are looking for a dedicated Linux System Administrator to help us ensure information security readiness and maintain ... Systems Administrator Job Category: Information Technology...with escalated customer tickets. Qualifications: + 3 years Linux system administration experience. + Knowledge of physical and virtual… more
    CACI International (12/27/25)
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  • Lead Administrator Linux Systems

    Burlington (Edgewater Park, NJ)
    …and other critical infrastructure technologies. **A Day In The Life** The Lead Administrator , Linux Systems , plays a role in managing and maintaining Linux-based ... , networking, hardware, scripting languages, and automation. In this role, the Lead Administrator , Linux Systems , will need to perform both engineering tasks and… more
    Burlington (12/17/25)
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  • System Administrator

    SAIC (Fort Gordon, GA)
    …expertise on emerging systems + Provide support to the underlying system architecture management applications like VMWare Virtual Center, IBM Director, and ... **Description** SAIC is currently hiring a ** System Administrator ** to support the INSCOM...technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian,… more
    SAIC (12/19/25)
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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: ... ensuring systems adhere to security and compliance standards. + ** System Updates:** Perform software updates, patching, and system hardening through… more
    CACI International (10/16/25)
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  • Linux Systems Administrator

    Lockheed Martin (San Antonio, TX)
    …If your referral is hired, you'll receive a payment\! code\-extrefer Linux System Administrator \- Clearance Required **WHAT WE'RE DOING** Join Lockheed ... , Cyber & Intelligence, where we foster innovation and integrity\. As a Linux Systems Administrator , you'll be empowered to create "new realities" and pioneer… more
    Lockheed Martin (01/10/26)
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  • IT Systems Administrator

    Insight Global (Sarasota, FL)
    …with a family-owned leader in health and wellness innovation, to hire an IT Systems Administrator . This is a unique opportunity to join a small, collaborative ... Ideal for someone ready to move from desktop support into systems administration. Culture: Family-oriented, collaborative environment with strong values and… more
    Insight Global (12/30/25)
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  • Sr. Systems Administrator - Secret…

    Lockheed Martin (King Of Prussia, PA)
    …that diminish human error while keeping the operator in the loop\. **The Work** As a Systems Administrator on the JES Program , you will: \-Work in an Kanban ... clearance . CompTIA Security\+ Certification . CompTIA Linux\+ or Red Hat Certified System Administrator Certification . Familiarity with system monitoring… more
    Lockheed Martin (10/29/25)
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  • Senior Information Systems

    Concurrent Technologies Corporation (Huntsville, AL)
    Senior Information Systems Administrator Concurrent Technologies Corporation Huntsville, AL Minimum Clearance Required: Top Secret Clearance Clearance Level Must ... and powerful solutions. CTC is looking for talented Senior Information System Administrator with experience accrediting, maintaining, and ensuring cyber… more
    Concurrent Technologies Corporation (10/19/25)
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