• Systems Administrator II (Temp)

    RTX Corporation (Annapolis Junction, MD)
    …some unclassified work will also be required. We're looking for an experienced Systems Administrator to join our team supporting critical operations in both ... Linux and Windows environments. In this role, you'll ensure our systems are secure, reliable, and aligned with mission requirements. An **active Full-Scope… more
    RTX Corporation (09/19/25)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …of the customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux (RHEL) environments across ... - Perform large scale configuration management and deployment across Windows , MacOS, Linux/Unix, and other operating systems ...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    BCMC (10/16/25)
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  • Systems Administrator 2

    Nightwing (Annapolis Junction, MD)
    …and emerging technologies to expand cybersecurity solutions. Job Description: The Systems Administrator will provide support for implementation, troubleshooting ... involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots,… more
    Nightwing (10/13/25)
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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 ... involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots,… more
    Nightwing (09/22/25)
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  • Systems Administrator

    ManTech (Washington, DC)
    **MANTECH** seeks a motivated, career and customer-oriented ** Systems Administrator ** to join our team in **Washington, DC** . This is an **onsite** position. ... Windows 2016 Server + 2+ years of experience with Microsoft Windows Systems and VMware desktops **Preferred Qualifications:** + ITILv4 Foundations… more
    ManTech (11/09/25)
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  • Systems Administrator

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Systems Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics ... us and make a difference in National Security!** The Systems Administrator will be responsible for: +...the resolution process + Configure and manage UNIX and Windows (or other applicable) operating systems /installs/loads operating… more
    Leidos (10/12/25)
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  • Network-System Administrator II

    Global Resource Solutions (Washington, DC)
    …Level 2 within 6 months of the date of hire. Security Requirements: + Current Top Secret Clearance with SCI Eligibility + Eligibility for access to Special ... Windows 2008 R2/2012 R2 Server, Microsoft Exchange Server 2003/2010, Microsoft Windows 7/10 operating systems (OS) administration and associated hardware +… more
    Global Resource Solutions (10/13/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics ... make a difference in National** **Security!** As a Senior Systems Administrator you will play a vital...Windows environments. + Implement, troubleshoot, and maintain IT systems . + Manage daily IT system configuration and operations.… more
    Leidos (11/15/25)
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  • ServiceNow Systems Administrator

    SAIC (Annapolis Junction, MD)
    …be substituted for the degree + Minimum of 9 years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is ... in the resolution process + Configure and manage UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains… more
    SAIC (11/06/25)
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  • System Operations/ Administrator

    Sciolex Corporation (Chantilly, VA)
    …related acquisition experience per level if no bachelor's degree is held. Active Top Secret /SCI clearance with a Counter-Intelligence Polygraph Experience as a ... in a similar IT support role. Compliant with DoD Directive 8570 Knowledge of Windows and Linux operating systems . CompTIA Security+ or ability to obtain within… more
    Sciolex Corporation (10/14/25)
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