• Linux Systems Administrator

    Lockheed Martin (San Antonio, TX)
    Systems , Cyber & Intelligence, where we foster innovation and integrity\. As a Linux Systems Administrator , you'll be empowered to create "new realities" ... your referral is hired, you'll receive a payment\! code\-extrefer Linux System Administrator \- Clearance ...excellence and integrity\. **WHO YOU ARE** You are a Linux Systems Administrator who will… more
    Lockheed Martin (01/10/26)
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  • Principal Linux Administrator (Top…

    RTX Corporation (Richardson, TX)
    …RTX **Enterprise Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise infrastructure ... , and software. + Perform software upgrades, patching, and system maintenance on Linux systems . + Troubleshoot issues and apply security policies specific to… more
    RTX Corporation (12/12/25)
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  • Systems Administrator ( Linux

    RTX Corporation (Mckinney, TX)
    …intelligent solutions for the global aerospace and defense industry. We are currently seeking a Linux Systems Administrator that will be working onsite in a ... highly collaborative, multi-platform and multi-disciplined environment. The Systems Administrator is required to have an active secret security clearance as… more
    RTX Corporation (12/02/25)
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  • FSL Linux Systems

    CGI Technologies and Solutions, Inc. (Houston, TX)
    **FSL Linux Systems Administrator (ADV000BAP)** **Category:** Business Consulting, Strategy and Digital Transformation **Main location:** United States, ... States. We have an exciting opportunity for a FSL Linux Systems Administrator to join...upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security… more
    CGI Technologies and Solutions, Inc. (01/02/26)
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  • Senior Linux System Administrator

    GovCIO (Austin, TX)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This ... role, you will work with other members to mitigate vulnerabilities on Linux -based systems , implement STIGs, address POAMs, and mitigate Zero-Day vulnerabilities.… more
    GovCIO (11/07/25)
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  • PDM/PLM Application Administrator

    RTX Corporation (Plano, TX)
    …only US citizens are eligible for a security clearance ​ **Security Clearance :** Top Secret - Current **Application System Administrator (PDM/PLM - Windchill) ... technologies, tools, or methodologies: PTC Windchill, Oracle database, Apache web server, Linux & Windows server operating systems , Shell scripting, CAD tools… more
    RTX Corporation (11/24/25)
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  • Windows Systems Administrator 4

    L3Harris (Greenville, TX)
    …TX Schedule: 9/80 Job Description: This position is for a Windows Systems Administrator supporting Software Development Engineering teams. The position requires ... administration in secure lab and isolated network environments. The Windows Systems Administrator will participate in roadmap, architecture, implementation, and… more
    L3Harris (01/07/26)
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  • Systems Administrator II

    V2X (Fort Bliss, TX)
    …usage, disk usage, and response times to maintain the STE Device systems operating efficiency. *Sets up administrator accounts, maintains system documentation, ... performance. 3. Assign and update security permissions on a Linux network. 4. Review and interpret Linux ...usage, disk usage, and response times to maintain the systems operating efficiency. *Experience in setting up administrator more
    V2X (12/16/25)
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  • Systems Administrator Autonomic…

    Lockheed Martin (Fort Worth, TX)
    …your future\! This role is for a full time on\-site System Administrator for the Joint Strike Fighter \(JSF\) Program Autonomic Logistics Information System ... selected candidate will work a 3rd shift \(overnight\) position\. The system Administrator is responsible for providing the overall on\-site ALIS maintenance and… more
    Lockheed Martin (12/17/25)
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  • PWE Systems Administrator (ISSA)…

    RTX Corporation (Richardson, TX)
    …:** DoD Clearance : Secret Collins Aerospace, Digital Technology, is hiring a Systems Administrator for our Secure Labs support team. A minimum Collateral ... Administration, and Virtualization Technologies (VM Ware, etc.) + Experience as a Linux Systems Administration + Experience with Compliance frameworks (RMF,… more
    RTX Corporation (01/08/26)
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