• Functional Area Expert II (Linux/ Unix )

    TISTA Science and Technology (Austin, TX)
    …have the skill set of a senior System Administrator (preferably in Solaris Unix and Red Hat Linux) but also be able to create new methods of gathering ... in System Administration: A deep understanding of Linux and Unix system administration, including configuring, monitoring, and troubleshooting various distributions… more
    TISTA Science and Technology (12/10/25)
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  • Senior Linux/ Unix

    S4 Inc. (Omaha, NE)
    …with Experience | Full Time | Comprehensive and competitive benefits Job Title: Senior Linux/ Unix Administrator Work Location: USSTRATCOM Offutt AFB ... Administrator Overview: S4 is seeking an experienced Senior Unix /Linux OS Administrator to...of the following certifications is preferred: ITIL 4 Foundations; Red Hat Certified Systems Administrator ; or Linux… more
    S4 Inc. (01/07/26)
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  • Senior Unix System…

    SMX (Patuxent River, MD)
    …jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is seeking a driven and experienced Senior UNIX Administrator to support operations at the ... and security of mission-critical systems across Department of Defense (DoD) networks. The Senior UNIX Administrator will ensure systems are properly patched… more
    SMX (12/04/25)
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  • UNIX Administrator

    ASM Research, An Accenture Federal Services Company (Hartford, CT)
    …and maintains UNIX hardware and operating system environments including Red Hat Enterprise Linux (RHEL), HP-UX, and Solaris. Optimizes backup processes; ... + Seven (7) years of systems administration experience on UNIX operating systems Red Hat Enterprise Linux...technology and resolve technical problems individually and as a senior project participant. + Ability to communicate effectively, both… more
    ASM Research, An Accenture Federal Services Company (10/18/25)
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  • Senior UNIX System Engineer w/Secret…

    TekSynap (Radford, VA)
    …Bachelor's degree in computer science or equivalent experience. **Overview** We are seeking a Senior UNIX System Engineerto join our team supporting an ITES task ... protocols via SOPs. **REQUIRED QUALIFICATIONS** **Experience** + Five (5) years as a UNIX Systems Administrator or IT Engineer, including task automation. +… more
    TekSynap (10/25/25)
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  • Senior Linux Systems Administrator

    Leidos (Camp Springs, MD)
    …of our critical Red Hat Enterprise Linux environment. As a Senior System Administrator , you'll be instrumental in designing, implementing, and maintaining ... + Bachelor's Degree with 12+ years' experience as a Unix System Administrator - Operational experience with...Red Hat Satellite. + Documenting system processes for Unix environments. + HW experience: Knowledge of Dell Servers,… more
    Leidos (12/20/25)
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  • Sr. UNIX Systems Engineer

    CGI Technologies and Solutions, Inc. (Radford, VA)
    …located in Radford, VA. **Your future duties and responsibilities:** This position is for a Senior UNIX System Engineer for a mixed and growing environment of ... Red Hat Enterprise Linux/Oracle Enterprise Linux and Solaris UNIX . This position will work with the existing ...Clearance. e) Five or more years' experience as a Unix Systems Administrator or IT Engineer with… more
    CGI Technologies and Solutions, Inc. (01/07/26)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    **Description** The DTRA program at Leidos is seeking a ** Senior Linux Administrator ** in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team ... in a virtual environment + Automation knowledge scripting in Unix shell and Ansible playbooks + Maintain and improve...Security) required + Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred)… more
    Leidos (12/30/25)
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  • Senior Windchill Application…

    RTX Corporation (Tucson, AZ)
    …Systems & Transformation Technologist** . This candidate will be a ** Senior Windchill Application Administrator ** for a product data/lifecycle management ... and _diverse_ atmosphere under _limited supervision_ . As a ** Senior Windchill Application Administrator ** on our digital...or major upgrades of multiple applications, Apache web server, Red Hat Linux operating system, Oracle database, etc. +… more
    RTX Corporation (11/18/25)
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  • Senior Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Arlington, VA)
    **Overview** SENIOR SYSTEMS ADMINISTRATOR (NAUT): Bowhead seeks a Senior Systems Administrator to support our customer on the Nautical contract in the ... platform certifications + CISSP, CISM, or equivalent advanced security certification + Red Hat Certified System Administrator (RHCSA) + Kubernetes certifications… more
    UIC Government Services and the Bowhead Family of Companies (01/06/26)
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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 **Intelligence Sector's (NSS) Cyber & Analytics Business ... and make a difference in National** **Security!** As a Senior Systems Administrator you will play a...operations and perform capacity planning. + Configure and manage UNIX and Windows operating systems, ensuring system integrity and… more
    Leidos (11/15/25)
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  • System Administrator , High Performance…

    RTX Corporation (Tucson, AZ)
    …eligible for a security clearance​ **Security Clearance:** Secret - Current **System Administrator , High Performance Computing (HPC) - P2** ** Senior Analyst ... problems that create a safer, more secure world. **Job Summary:** This Senior Analyst (P2) High-Performance Computing (HPC) candidate will provide Raytheon Digital… more
    RTX Corporation (10/24/25)
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  • India AVP of Operations - Infrastructure (Remote)

    Insight Global (Marietta, GA)
    Administrator /Architect. o Systems: Microsoft Certified: Windows Server Hybrid Administrator , Red Hat Certified Engineer (RHCE). o Virtualization/Containers: ... Acumen . Oversee administration and optimization of Windows, Linux, Unix servers, virtualization platforms (VMware, Hyper-V), and container platforms (Kubernetes,… more
    Insight Global (01/13/26)
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  • Systems Engineer Sr Staff

    Lockheed Martin (Kirtland AFB, NM)
    …New Mexico\. The candidate is expected to perform boilerplate systems administrator functions on the program's networks such as installation, patching, configuration ... operating systems and applications\. In addition, as a lead senior engineer the candidate is expected to take the...* Experience leading 3\-5 person teams * Experience with UNIX / OS * Experience with RHEL * General understanding… more
    Lockheed Martin (01/09/26)
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