• Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    …**Responsibilities include, but not limited to:** + Lead and supervise a team of system administrators ( Windows / Linux /VMWare) and IT support staff. + Design, ... **MANTECH** seeks a motivated, mission-oriented **Senior Systems Administrator ** to join our team...as leading, mentoring, and coordinating with a team of System Administrators. You will play a key role in… more
    ManTech (12/19/25)
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  • Sr. Systems Administrator

    Arena Technical Resources, LLC (Washington, DC)
    …management system (DBMS) products . Address all vulnerabilities identified via system scanning Systems Administrator Senior Advisor Requirements and ... Sr. Systems Administrator Location: Washington, DC, US...(Hybrid) Clearance: Secret Job Description: . Manage and maintain Windows and Linux servers in the Azure… more
    Arena Technical Resources, LLC (10/25/25)
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  • Systems Administrator /ISSO

    Tyto Athene (Santa Barbara, CA)
    **Description** Tyto Athene is searching for a ** Systems Administrator /Information System Security Officer** to join our CA team. **Responsibilities:** + ... administration of Windows -based computers, networks, and server administration, Linux system and server administration. + Research, generate, and validate… more
    Tyto Athene (12/07/25)
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  • Systems Administrator

    TEKsystems (Fort Wayne, IN)
    Systems Administrator -Security Hybrid-Fort Wayne, IN Technical Skill + Windows + Red Hat Linux + Ivanti + Patch Management + SCCM + PowerShell + Azure + ... Active Directory + Deployment of hardened/secured Windows and Red Hat Linux Servers +...procedures. Job Description Our team is hiring a permanent Systems Administrator to assist with daily operations… more
    TEKsystems (01/15/26)
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  • Senior System Administrator

    Amentum (Springfield, VA)
    …to the NGA enterprise. * Senior level experience managing and administering Linux / Windows based systems including patching, updates, and configuration ... so, look no further. Amentum is seeking a **Senior System Administrator ** to join our team of...systems including the transition and migration of corporate systems * Monitor and report on system more
    Amentum (11/20/25)
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  • Senior Systems Administrator

    Leidos (Gaithersburg, MD)
    …with Polygraph. **Primary Responsibilities:** + Lead system administration for Linux and Windows -based systems in secure, mission-critical environments. ... Advantage Solutions Business Area, is currently seeking a Senior Systems Administrator . As a senior member of...(Red Hat Enterprise Linux or CentOS) and Windows Server platform system administration. + Proficiency… more
    Leidos (01/16/26)
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  • IT System Administrator

    Amentum (Houston, TX)
    …at centers across the United States. We have an exciting opportunity for a **IT System Administrator / Systems Analyst** to join our Software Engineering and ... + ** System Administration:** Demonstrated experience administering Microsoft and Linux systems in complex environments. + **Solution Design:** Develop… more
    Amentum (01/16/26)
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  • Network Systems Administrator

    Leidos (Stennis Space Center, MS)
    …The Digital Modernization Sector at Leidos currently has an opening for a Network Systems Administrator /Engineer to work at our Stennis Space Center, MS customer ... This position would be responsible for maintaining the virtualized Windows and Linux servers and applications within...Linux OS environments + Hands-on experience with reviewing system logs and events to resolve issues + Demonstrated… more
    Leidos (01/06/26)
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  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …complex computer system network administration activities. + Experience in Microsoft Windows computer operating systems , LINUX operating systems , ... win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system...a business, technical or engineering field. + Certification in LINUX operating systems + Cisco Certified Network… more
    SimIS Inc. (11/06/25)
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  • Sr. Systems Administrator

    Subaru of America (Van Buren Twp, MI)
    …experience and interest + At least 2-4 years of experience in a Systems Administrator role supporting Linux and Windows environments and networking + At ... that inspire and delight our customers. ROLE SUMMARY The Systems Administrator serves as a hands-on technical...skills. MAJOR RESPONSIBILITIES + Designs, implements, maintains, and monitors Linux and Windows operating systems .… more
    Subaru of America (01/09/26)
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