• Linux Systems Administrator

    L3Harris (Greenville, TX)
    …29921 Job Location: Greenville, TX Schedule: 9/80 Job Description: L3Harris is seeking a Linux Systems Administrator to support Mission System integration in ... systems will include the install and configuration of the Operating Systems and Mission software, Infrastructure services, and Cyber Security hardening. A… more
    L3Harris (10/17/25)
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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...can bring something new - building a new IT infrastructure for a group of engineers, restoring files due… more
    RTX Corporation (10/21/25)
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  • Principal Linux Administrator

    RTX Corporation (Mckinney, TX)
    …Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise infrastructure with a focus ... and software. + Perform software upgrades, patching, and system maintenance on Linux systems . + Troubleshoot issues and apply security policies specific to … more
    RTX Corporation (11/19/25)
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  • Senior Linux System Administrator

    Citigroup (Irving, TX)
    …seeking an accomplished and technically astute Level 3 Linux System Administrator to join our high-performance infrastructure team. This individual will ... serve as a subject matter expert (SME) on Linux systems , providing deep operational insight, advanced troubleshooting, performance tuning and capacity planning.… more
    Citigroup (09/23/25)
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  • Sr. Linux Systems

    RTX Corporation (Richardson, TX)
    …supporting a Raytheon program in a classified environment as a **Sr. Linux System Administrator ** . Responsibilities include building, maintaining, and securing ... capabilities and create end-to-end solutions to solve complex digital infrastructure problems. To achieve the mission of our customers,...Information Technology systems and directly supporting customer mission-critical capabilities. + You… more
    RTX Corporation (11/19/25)
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  • Senior Linux System Administrator

    GovCIO (Austin, TX)
    …(https://careers-govcio.icims.com/jobs/6348/senior- linux -system- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active...will work with other members to mitigate vulnerabilities on Linux -based systems , implement STIGs, address POAMs, and… more
    GovCIO (11/07/25)
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  • Application Systems Administrator -3…

    US Bank (Irving, TX)
    systems management + Basic knowledge of system software infrastructure , software distribution and installation/support + Experience with **application delivery ... design configuration, problem diagnosis, maintenance, and installation of application systems and/or user group profiles. Validates system functionality after… more
    US Bank (11/07/25)
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  • Public Cloud Linux Engineer

    NTT DATA North America (Austin, TX)
    …+ Develop and maintain backup, disaster recovery, and failover strategies for Linux infrastructure . + Participate in on-call rotation and after-hours support ... AWS, Azure, Google Cloud Platform (GCP), and Oracle Cloud Infrastructure (OCI). This position demands Linux OS...Linux Operations & Support + Provide support for Linux -based systems across on-premises and cloud environments… more
    NTT DATA North America (10/08/25)
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  • Senior Network Systems Administrator

    General Dynamics Information Technology (Fort Bliss, TX)
    …of related experience **US Citizenship Required:** Yes **Job Description:** Senior Network Systems Administrator - PDA GDIT is seeking highly experienced and ... Obtain:** Secret **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Networking Hardware,Network Security,Network Systems...qualified Senior Network Systems Administrator - Primary Domain … more
    General Dynamics Information Technology (09/27/25)
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  • IT Systems Administrator , Launch

    SpaceX (Mcgregor, TX)
    IT Systems Administrator , Launch McGregor, TX Apply SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally ... ultimate goal of enabling human life on Mars. IT SYSTEMS ADMINISTRATOR , LAUNCH SpaceX is looking for...BASIC QUALIFICATIONS: + 3+ years of experience in IT systems administration. + Hands-on experience with Linux more
    SpaceX (09/14/25)
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