• Senior Systems Engineer…

    Fiserv (Irving, TX)
    …performance, and security. The ideal candidate should have a strong background in Linux system administration and experience working in a highly ... scale, come make a difference at Fiserv. **Job Title** Senior Systems Engineer ( Linux Automation)...+ Install, configure, and maintain Linux -based operating systems and perform regular system updates and… more
    Fiserv (10/29/25)
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  • Senior Linux System

    Citigroup (Irving, TX)
    Linux Programming, Linux Server Administration , Linux System Administration , Linux Systems Programming, Python (Programming Language), ... are seeking an accomplished and technically astute Level 3 Linux System Administrator to join our high-performance...will serve as a subject matter expert (SME) on Linux systems , providing deep operational insight, advanced… more
    Citigroup (09/23/25)
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  • Linux Administrator

    Eliassen Group (Westlake, TX)
    Linux Administrator** **Westlake, TX** **Type:** Contract **Category:** IT Admin **Industry:** Financial Services **Reference ID:** JN -082025-103234 **Date ... automate, promote DevOps and EngOps work. You will be leading managing Linux , Unix, Windows operating systems , Hypervisors, Hardware, security compliance… more
    Eliassen Group (10/14/25)
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  • Systems Engineer Senior - Level 3

    Lockheed Martin (Fort Worth, TX)
    …Qualifications:** * Proficient with Windows and Linux /Unix operating systems configuration and troubleshooting\. * IT System /Software Troubleshooting ... related discipline, or equivalent experience/combined education **Desired Skills:** * Systems administration experience with servers and network… more
    Lockheed Martin (10/31/25)
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  • Infrastructure Senior Technology Analyst…

    Citigroup (Irving, TX)
    …come join us. We'll enable growth and progress together. The Infrastructure Senior Technology Analyst is an intermediate level role responsible for assisting with ... LAN / WAN and help desk administration activities, including network maintenance, technical guidance, and security in coordination with the Technology Infrastructure… more
    Citigroup (09/02/25)
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  • Information System Security Engineer

    CAE USA INC (Arlington, TX)
    …US citizens are eligible for this role. Preferred Skills: Experience with System Administration of Windows and Linux Systems is highly desired. This is ... cost and technical volumes. + Assist in Cost Account Management. + High level system administrator skills under Windows or Linux (prefer both). + Experience with… more
    CAE USA INC (10/24/25)
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  • Cyber Systems Security Engineer - Skunk…

    Lockheed Martin (Fort Worth, TX)
    …experience\. Tactical Data Systems experience\. **Desired Skills:** Experience with Linux system administration and troubleshooting, specifically with ... Be More Than You Can** _Imagine_ **\.** The Cyber Systems Security Engineer Senior candidate is responsible...Hat Enterprise Linux \(RHEL\)\. Experience with Windows system administration and troubleshooting Strong communication and… more
    Lockheed Martin (10/18/25)
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  • Senior Manager, Site Reliability…

    Publicis Groupe (Irving, TX)
    …platforms that serve billions of data-driven interactions every day. We're looking for a Senior Manager, System Administration , to lead the modernization of ... we deliver. **What You'll Achieve** + Lead a global Windows and Linux operations team responsible for high-volume, mission-critical infrastructure. + Champion an… more
    Publicis Groupe (10/15/25)
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  • Lead Application Reliability Engineer

    Citigroup (Irving, TX)
    …Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu)_** , including ** System Administration Tasks** like **_User Management, Service Restarts,_** and **_File ... environment. + Experience managing and troubleshooting ** Linux Operating Systems ** **_(eg,...with **Configuration Management Tools** **_(eg, Ansible, Puppet, Chef)_** for system administration and infrastructure automation - **_Must… more
    Citigroup (10/18/25)
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  • Big Data Support Engineer- Assistant Vice…

    Citigroup (Irving, TX)
    …in on-call rotations including weekend coverages to provide 24/7 support for critical systems , system changes and respond to production incidents. + Experience ... by the performance of the individual. **Responsibilities:** + The Application Support Senior Analyst provides technical and business support for users of Citi… more
    Citigroup (09/30/25)
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  • IT Services- Penetration Testing Manager (US…

    PwC IT Services Co. (Fort Worth, TX)
    …security engineering, architecture, and application security; and, Demonstrating prior system administration , incident response, Security Operations Center (SOC) ... (ISMS), Information Security Risk Assessments, Intellectual Curiosity, Intrusion Detection System (IDS), IT Infrastructure, Kali Linux , Learning Agility {+… more
    PwC IT Services Co. (10/10/25)
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  • Cloud Engineer

    Guidehouse (Lewisville, TX)
    …Azure Portal and VPC + Terraform/Github experience is required + Intermediate to Advanced Linux systems administration skills + Candidate must have strong ... Will Do** **:** **Guidehouse is looking for an IT Senior Associate to be a part of our Cloud...resources + Develop and execute Terraform script processes for system buildout and modifications + Configure Okta integration with… more
    Guidehouse (11/02/25)
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