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Linux Systems Administrator

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: Arena Technical Resources, LLC (ATR)
Full Time position
Listed on 2026-02-16
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: St. Louis

We are looking for a talented TS/SCI cleared Red Hat Data Center / Systems Administrator in St. Louis, MO to join a team of IT professionals that are responsible for maintaining, securing, and enhancing a R&D testbed network/environment across multiple security domains. Our team is made up of cloud computing engineers, high performance computing (HPC) specialists, network engineers, and systems administrators.

The environment is a state-of-the-art IT lab that includes demonstration facilities, equipment and data services, high performance computing, cloud services, and expertise for advanced GEOINT research and development. This environment provides NGA scientists with computers, storage, and desktop IT systems and software at locations across the country on four network domains.

The team’s objective is to keep the technology up and running, provide innovative design, engineering, implementation, operations, sustainment, and disposal of information technology (IT) services on multiple networks and security domains, at multiple locations worldwide, to support the NGA Geospatial-Intelligence (GEOINT) mission.

Required Skills:
  • Proficiency and hands-on experience with Red Hat or some other variant of Linux.
  • Must be able to troubleshoot users’ problems with RHEL 8 workstations and servers.
  • Must have a basic understanding of Networks and be able to troubleshoot basic Network issues.
  • Must have experience with deploying and configuring virtual machines. VMWare, Red Hat Open Shift, and Kubernetes are a plus.
  • Must be able to research findings identified by security scans and patch systems.
  • Must be able to manage storage solutions, such as Net App.
  • Data Center experience:
    • Must be comfortable racking servers.
    • Cabling power, fiber optics, and ethernet.
    • Opening up servers, reseating cards, replacing cards, adding memory, etc.
  • Experience with Dev Ops principles, Bash and Ansible scripting, and Git Lab is a plus.
  • You must be able to work on client site, up to 35% telework will be authorized once you have established yourself on the team.

    Active TS/SCI clearance and CI Poly is required (we can sponsor your polygraph after joining if you don’t already have one).

    Education/

    Experience:

    We have a strong preference for an Expert/Level 4 candidate but will consider qualified candidates at any level. You must meet one of the below combinations of education and RELEVANT experience to be considered:

    Level 1 - Junior Experience Master ’s Degree0 Years Bachelor’s Degree2 Years Associates Degree4 Years High School Diploma/GED6 Years
    Level 2 - Mid Experience Ph D0  Years Master’s Degree2 Years Bachelor’s Degree4 Years Associates Degree6 Years High School Diploma/GED8 Years
    Level 3 - Senior Experience Ph D2  Years Master’s Degree4 Years Bachelor’s Degree6 Years Associates Degree8 Years High School Diploma/GED
    10 Years
    Level 4 - Expert Experience Ph D4  Years Master’s Degree6 Years Bachelor’s Degree8 Years Associates Degree
    10 Years High School Diploma/GED
    12 Years #J-18808-Ljbffr
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