• Senior Systems Administrator

    CACI International (Fort Meade, MD)
    Senior Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... * * * **The Opportunity:** CACI is seeking a Senior Systems Administrator to provide support for...upgrade audits and plugins files. + Linux - Moderate systems administration knowledge to include installing OS,… more
    CACI International (12/02/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …CI Polygraph required The Systems Engineering team is seeking a driven Senior Linux/ UNIX Systems Administrator that is highly technical and mission ... TO SUCCEED Basic Qualifications: - Ten (10) years' experience as aLinux/ UNIX Systems Administrator supporting complex, multi-site enterprise-scale environments -… more
    Arena Technical Resources, LLC (11/29/25)
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  • Sr . Systems Administrator (Linux)

    Themis Insight (Fort Meade, MD)
    …Public and Private, Civilian and Military expertise to every case. We are hiring a Sr . Systems Administrator (Linux) to work in Fort Meade, MD. Position location ... remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs/loads...Proficient with Linux. Minimum of 3 years Linux system administration experience (within the last 3 years). + Knowledge… more
    Themis Insight (12/19/25)
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  • Sr . MySQL Database Administrator - Chicago…

    Comcast (Chicago, IL)
    …technologies as required by FreeWheel's evolving business needs + Working knowledge of Linux/ Unix systems (eg, Rocky Linux, Red Hat, Debian, CentOS) is a ... and industry best practices. + Design, implement, and enhance monitoring and alerting systems to support both BAU operations and project initiatives. + Build and… more
    Comcast (11/12/25)
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  • System Engineer Field Support Sr - Level 3

    Lockheed Martin (Las Vegas, NV)
    …if requested\. **Basic Qualifications:** \- Knowledge in network and computer systems administration \- Experience with troubleshooting networks and computers ... **Description:** System Engineer Field Support Senior \- Level 3 This exciting position is...2003, 2008, and 2012, Windows XP, Windows 7, and UNIX operating systems \. Will develop solutions to… more
    Lockheed Martin (01/06/26)
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  • Field Engineer Level 4 ( Sr Principal)

    Northrop Grumman (Jacksonville, FL)
    …with the repair, configuration, troubleshooting and operations of network devices and computer systems (Windows and Unix Operating Systems ). + Must be ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...our team as a **F** **ield Engineer Level 4 ( Sr Principal)** based out of **Mayport, FL** with some… more
    Northrop Grumman (11/25/25)
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  • System Administrator, High Performance Computing…

    RTX Corporation (Tucson, AZ)
    …DoD Top-Secret Clearance. + Advanced hands-on experience with Windows and Unix security hardening, systems integrations, advanced troubleshooting, and ... Secret - Current **System Administrator, High Performance Computing (HPC) - P2** ** Senior Analyst Level** **Raytheon Digital Technology (DT)** **Tucson AZ - Onsite… more
    RTX Corporation (10/24/25)
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  • Sr Enterprise Sys Engineer - Unix

    Fresenius Medical Center (Lexington, MA)
    **PURPOSE AND SCOPE:** The Unix System Administrator will be responsible for the design, implementation, and ongoing support of IBM Power Systems environments ... The ideal candidate will have hands-on experience supporting enterprise-level systems , managing migrations, and ensuring system performance, availability, and… more
    Fresenius Medical Center (01/08/26)
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  • Senior Oracle DBA

    HCA Healthcare (Nashville, TN)
    …disaster recovery, and database security + Functional experience with Linux (or other unix ) operating systems + Prefer experience writing or maintaining unix ... over 156,000 hours volunteering in our communities. As a Senior Oracle DBA with HCA Healthcare you can be...(tuition, student loan, certification support, dependent scholarships) + Colleague recognition program + Time Away From Work Program (paid… more
    HCA Healthcare (10/30/25)
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  • Cloud Information Systems Security Engineer…

    CGI Technologies and Solutions, Inc. (Huntsville, AL)
    **Cloud Information Systems Security Engineer (ISSE) - Sr ** **Category:** Cyber Security **Main location:** United States, District of Columbia, Washington ... Top Secret Clearance are required. CGI Federal is currently looking for a Senior -Level Cloud Information Systems Security Engineer with active Top Secret… more
    CGI Technologies and Solutions, Inc. (12/24/25)
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