• Linux / Windows Systems

    COMSO, Inc (Columbia, MD)
    Linux / Windows Systems Administrator II...Certification, IA Baseline Certification in Linux , Unix, Windows , or Cisco OS operating system + ... One (1) year experience in Linux , Unix, Windows , or Cisco OS operating system (...installation, baseline configuration, and service enablement. + Perform light Linux administration (primarily Red Hat), including scripting… more
    COMSO, Inc (11/27/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    …utilization; perform capacity analysis and system planning. + Configure and manage Linux and Windows operating systems ; install, load, and enhance OS ... ManTech seeks a **Senior Linux System Administrator** to join our...20+ years of related experience in systems administration or IT operations. + Experience with Linux more
    ManTech (12/24/25)
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  • System Administrator- Linux

    Leidos (Annapolis Junction, MD)
    …utilizes complex equipment/ systems (ex. Network Switches, Routers, LANs, & cabling, Windows / Linux operating systems , VMware, etc.). + Must have ... experience installing, updating, and upgrading Linux Operating Systems (OS). + Must have...team. + Must be able to respond to emergency system administration , operations, and maintenance problems, on… more
    Leidos (01/06/26)
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  • Senior Linux System Administrator

    Belay Technologies (Annapolis Junction, MD)
    …The SA configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and ... + Will need to be available to respond to system administration and maintenance problems while off...Must have experience in or familiarity with the following systems : Windows / Linux operating systems more
    Belay Technologies (01/04/26)
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  • Principal Windows Systems

    Northrop Grumman (Baltimore, MD)
    …certification. + Windows AD, LDAP, VMWare, and knowledge of SAN storage systems . + Linux Operating System experience and/or certification for current ... your career. Northrop Grumman Mission Systems is seeking a well-qualified ** Windows Systems Administrator** to join its Classified Solutions team in… more
    Northrop Grumman (01/08/26)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    …and 5 additional years' experience might be substituted for a degree. + Heavy Windows and Linux administration experience + Highly proficient with Active ... to branch management. **Minimum Qualifications:** + 10+ years' of experience in systems administration of hardware and software in support of developing… more
    ManTech (12/30/25)
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  • Senior Linux Systems Administrator

    Leidos (Camp Springs, MD)
    …(DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator). + 3+ years deploying Unix in secured environments, ... **Description** The Leidos Digital Modernization Sector is seeking a **_Senior Linux Systems Administrator_** in support of the Air Force National Capital… more
    Leidos (12/20/25)
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  • Systems Administrator

    Belay Technologies (Annapolis Junction, MD)
    …our Intel team. You will play a key role in supporting and optimizing IT systems across Linux , Windows and VMware environments. You'll provide critical ... or university is required. Five (5) years of additional system administration experience may be substituted for...Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots,… more
    Belay Technologies (11/19/25)
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  • Fidelis Administrator - Active TS/SCI with CI Poly

    ENS Solutions (College Park, MD)
    …Install, configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system ... design and evaluation, solution engineering, software development, or system administration . Requirements + 3+ years of...with operating and maintaining Microsoft Windows and Linux servers to include operating systems . +… more
    ENS Solutions (12/27/25)
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  • Application Engineer - Information Security

    CACI International (Fort Meade, MD)
    …+ Perform essential system administration functions for both Linux and Windows servers. + Configure, maintain, and automate processes for ... of ensuring the security and integrity of our customer systems , helping to counter threats and maintain enterprise security...w/ Poly + Experience in Windows and Linux server system administration +… more
    CACI International (12/20/25)
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