• Linux / Windows Systems

    COMSO, Inc (Columbia, MD)
    Linux / Windows Systems Administrator II (TS/SCI w/ Polygraph) Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Job Type Full-time ... CWIP: IAT Level II Certification, IA Baseline Certification in Linux , Unix, Windows , or Cisco OS operating...established Standard Operating Procedures (SOPs). + Build and configure Windows Server 2019 and 2022 systems from… more
    COMSO, Inc (11/27/25)
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  • Associate Linux and Windows

    The Boeing Company (Tukwila, WA)
    …States (US) Infrastructure Organization is currently seeking an **Associate Linux and Windows Systems Administrator ** to join the team in **Tukwila, WA** ... years + 1+ years of experience in performing system administration tasks on Windows and Linux hosts including installing security patches and making… more
    The Boeing Company (12/19/25)
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  • Linux / Windows Systems

    Lockheed Martin (King Of Prussia, PA)
    …6 months of start\) * CompTIA Linux \+ or Red Hat Certified Systems Administrator Certification * Ability to provide in\-depth monitoring, able to identify ... our customers achieve their missions\. The Work: As a Systems Administrator on the ECIW team, you... system administration, including installing, patching, troubleshooting and hardening Linux and Windows operating systems more
    Lockheed Martin (12/11/25)
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  • Linux & Windows Systems

    TEKsystems (Long Beach, CA)
    Windows Servers ( Windows Server 2016 and newer) and 120 SUSE Linux servers (SLES 12 and SLES 15), including patching, performance monitoring, and ensuring ... with development, security, and project teams to implement new systems and services. + Create automation scripts and processes...and efficiency. Qualifications: + 5-7+ years as a System Administrator with deep expertise in Windows Server… more
    TEKsystems (12/23/25)
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  • Linux / Windows Senior…

    Lockheed Martin (San Diego, CA)
    …including: Network/System Administration \- Experience with server and desktop management of Linux and Windows environments \- Familiar with package deployment, ... \- Solid background/experience with Red Hat Enterprise \- Microsoft Windows Server Setup, Configuration, and Administration \- Experience providing lab… more
    Lockheed Martin (12/18/25)
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  • 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, ... experience in Systems Administration, with demonstrated expertise in both Windows Server and Enterprise Linux environments. + Expert-level, hands-on… more
    ManTech (11/05/25)
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  • Senior Linux Systems

    Leidos (Camp Springs, MD)
    …+ Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator ). + 3+ years deploying Unix in secured ... The Leidos Digital Modernization Sector is seeking a **_Senior Linux Systems Administrator_** in support of the...and take ownership of our critical Red Hat Enterprise Linux environment. As a Senior System Administrator ,… more
    Leidos (12/20/25)
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  • Senior Systems Administrator

    Mount Sinai Health System (New York, NY)
    …at Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems , and help support high-performance computing (HPC) ... team and a research data services team. The **_Senior Systems Administrator /Engineer,_** as a member of the...6 years of experience in designing, administering and troubleshooting Linux and Windows systems , storage… more
    Mount Sinai Health System (12/22/25)
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  • Software Systems Integrator

    L3Harris (Greenville, TX)
    …Greenville, TX and Rockwall,TX Schedule: 9/80 Job Description: L3Harris is seeking a hybrid Windows / Linux Systems Administrator to support Mission System ... resolution. Essential Functions: + Integrate with a team of multidiscipline, multileveled Systems Administrators supporting Linux , Windows , and Network… more
    L3Harris (12/04/25)
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  • Principal System Administrator

    RTX Corporation (El Segundo, CA)
    …Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. + Understanding and knowledge of ... to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Sr....Group Policy, & DNS. + Advanced Red Hat Enterprise Linux knowledge. + Working as a team member in… more
    RTX Corporation (12/09/25)
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