• Linux Administrator

    TEKsystems (Irving, TX)
    …coverage which will include weekends** Description TEKsystems is currently looking for RHEL Administrator with 8+ yrs of experience with RHEL 7/8/9 in an enterprise ... related to RHEL OS and various x86 hardware. Details: Administrator , to be working within the CDS Operations Engineering...Required Qualifications 8+ years of experience with Red Hat Linux . RHEL 7, 8 and 9 5+ years of… more
    TEKsystems (11/03/25)
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  • Senior Linux System Admin

    Citigroup (Irving, TX)
    …Overview** **:** We are 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… more
    Citigroup (09/23/25)
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  • Multi Function Info Systems - Level 3 Mpse Admin…

    Lockheed Martin (Fort Worth, TX)
    …updates, anti\-virus/anti\-spyware updates, and patch updates \* Red Hat Enterprise Linux System Administrator \* Importing/Exporting large data volumes \* ... located in Fort Worth, Texas, United States\. We are seeking an experienced Administrator to work on the Joint Strike Fighter \(JSF\) Autonomic Logistics Information… more
    Lockheed Martin (10/08/25)
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  • Cyber Systems Security Engineer - Level 2

    Lockheed Martin (Fort Worth, TX)
    …rack components Applying updates, anti\-virus/anti\-spyware updates, and patch updates Linux System Administrator Importing/Exporting large data volumes ... Knowledge of implementing STIGs and addressing cyber vulnerabilities\. A Secret security clearance or higher with investigation within the last 6 years **Security Clearance Statement:** This position requires a government security clearance, you must be a US… more
    Lockheed Martin (10/10/25)
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  • Cyber Administrator

    CAE USA INC (Arlington, TX)
    …advancement and having fun! Summary We are seeking a mission-focused System Administrator to support IT operations and cybersecurity readiness in a defense ... candidate will demonstrate proficiency in both Microsoft Windows and Linux systems administration, including hardening, deployment, configuration, maintenance, and… more
    CAE USA INC (10/23/25)
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  • Information System Security Engineer

    CAE USA INC (Arlington, TX)
    …and technical volumes. + Assist in Cost Account Management. + High level system administrator skills under Windows or Linux (prefer both). + Experience with ... + Extensive experience with hardware/software platforms to include MS Windows, Linux , UNIX. + Military service or military environment familiarity, customs/protocol… more
    CAE USA INC (10/24/25)
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  • Systems Engineer Senior - Level 3

    Lockheed Martin (Fort Worth, TX)
    …MPE system anomalies and issues * Lab configuration consisting of installation of Linux and Windows operating systems in a variety of hardware to include servers, ... special access\. **Basic Qualifications:** * Proficient with Windows and Linux /Unix operating systems configuration and troubleshooting\. * IT System/Software… more
    Lockheed Martin (10/31/25)
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  • Cyber Analyst III

    CAE USA INC (Arlington, TX)
    …regulations, directives and procedures. Function as Information Technology Security Administrator , coordinate and oversee compliance of multiple IT Security and ... to aid in Security and Operational issues . + Experience with Linux and Windows required for Splunk administration. + U nderstanding with virtualization… more
    CAE USA INC (09/16/25)
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