• Principal Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Linux Systems Administrator in our **National Security Sector's (NSS) Cyber & ... . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission...!** **Job Summary:** Leidos is seeking a Principal Linux Systems Administrator with demonstrated experience supporting and… more
    Leidos (07/31/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented **Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will ... support the implementation, troubleshooting, and maintenance of IT systems , as well as manage IT system infrastructure and associated processes.… more
    ManTech (09/20/25)
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  • Senior Systems Administrator

    Leidos (Tucson, AZ)
    …cybersecurity, network engineering, and software development teams to ensure system compliance and performance. + Participate in security audits, incident ... Advantage Solutions Business Area, is currently seeking a Senior Systems Administrator . As a senior member of...as well as a Polygraph. **Primary Responsibilities:** + Lead system administration for Linux and Windows-based systems more
    Leidos (10/10/25)
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  • Unix IA Ops Systems Administrator

    SMX (Patuxent River, MD)
    Unix IA Ops Systems Administrator (4702)at SMX(View all jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is seeking a Mid-Level Unix IA Ops ... Systems Administrator to join our team at...activities (patching, user access, configuration validation) + Collaborate with system owners, security officers, and leadership to… more
    SMX (10/18/25)
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  • Systems Administrator

    Robert Half Technology (Cedar Rapids, IA)
    Description Our local client is looking for a Systems Administrator , in Cedar Rapids, to oversee and maintain the reliability, security , and efficiency of ... and virtual servers (Windows Server, VMware, Hyper-V) + Monitor system and network performance, resolving issues as...Active Directory, and basic PowerShell scripting + Exposure to network hardware (routers, switches) and security tools… more
    Robert Half Technology (09/22/25)
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  • Systems Administrator

    Robert Half Technology (Pleasant Prairie, WI)
    Description We are looking for a dedicated Systems Administrator to join our team in Pleasant Prairie, Wisconsin. In this Contract-to-Permanent position, you ... for timely repairs or replacements. * Develop and implement solutions to enhance network security , efficiency, and cost-effectiveness. * Provide Tier 3 technical… more
    Robert Half Technology (09/26/25)
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  • System Administrator

    ManTech (Annapolis Junction, MD)
    …configuration, and reliable operation of critical computer systems , network servers, and virtualization environments, upholding system stability and ... **ManTech seeks a motivated, career and customer-oriented System Administrator II to join our...with patching and configuring systems , ensuring up-to-date security and optimal system performance. + Practical… more
    ManTech (09/05/25)
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  • System Administrator

    SAIC (El Segundo, CA)
    **Description** SAIC's Horizon 2 program is seeking a ** System Administrator ** . This role provides support to the US Space Forces mission of delivering ... warfighter capability via the Space Systems Command's Space Combat Power weapon system ...standards, policies and procedures. + Works closely with remote Network and Systems Analysts to help determine… more
    SAIC (09/26/25)
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  • Systems Administrator 3 - 23829 (FS…

    Huntington Ingalls Industries (Fort Meade, MD)
    …with network administrators. + Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system ... Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $87,990.00 - $144,500.00 Security Clearance: TS/SCI with Poly Level of Experience: Mid This… more
    Huntington Ingalls Industries (10/07/25)
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  • System Administrator

    ManTech (Eglin AFB, FL)
    **MANTECH** seeks a motivated, career and customer-oriented ** System Administrator ** to join our Air Force / Space team at **Eglin AFB** . The System ... include, but are not limited to:** + Determining hardware, software, and systems specifications, and configuration requirements. + Execution of the patching, fixing,… more
    ManTech (10/14/25)
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