> Markdown version of [/jobs/ext/605487-linux-systems-administrator](https://www.wearedevelopers.com/jobs/ext/605487-linux-systems-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Linux Systems Administrator - **Company:** ARETE PARTNERS INC. - **Location:** Tucson, AZ, United States - **Experience:** Experienced - **Salary:** $85,000.0 - $125,000.0 - **Contract:** Permanent contract - **Skills:** Secure Shell (SSH), Systems Engineering, Bash Shell, Cyber Security, System Configuration, Linux, Domain Name System (DNS), Internet Small Computer System Interface (ISCSI), Python (Programming Language), Kernel-Based Virtual Machine, Networking Basics, Network Planning and Design, Routing, Red Hat Enterprise Linux, Security Content Automation Protocol, Systems Architecture, Virtual Local Area Networks, Virtualization Technology, Scripting, Firewalls (Computer Science), Build Management, Storage Technologies, Vulnerability Analysis, Vmware - **Published:** June 23, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=c21d17f18ae27274 ## About the Role Do you have experience in Vuls?, We are seeking a mid-level Linux System Administrator to support multiple Department of Defense (DoD) programs focused on the design, installation, and configuration of cyber-compliant prototype and low-volume production systems and networks. This role primarily supports the build, hardening, and deployment of local and fielded systems in direct support of the Warfighter. The ideal candidate will possess strong technical expertise with Red Hat Enterprise Linux (RHEL), experience working within DoD cybersecurity compliance frameworks, and the ability to support systems of varying complexity. This is a hands-on, on-site position supporting mission-critical programs with opportunities for collaboration, travel, and direct customer engagement. This is an exempt, non-supervisory, full-time position based in our Tucson, AZ office., * 3-5 years of experience as a Linux System Administrator supporting production, lab, or deployed systems. * Strong hands-on experience with Red Hat Enterprise Linux (RHEL) administration. * Experience implementing DoD cybersecurity compliance requirements, including DISA STIGs, RMF, SCAP, and ACAS. * Experience building, configuring, or deploying systems used in mission-critical or fielded environments. * Understanding of networking fundamentals (DNS, routing, firewalls, VLANs, SSH). * Experience with scripting or automation (e.g., Bash, Python). * Ability to collaborate effectively with IT, Cyber Security, engineering, and program teams. * Willingness and ability to travel occasionally. * Willingness to provide limited after-hours support as required by program needs. * Must be able to obtain and maintain a Top Secret (TS) security clearance. * U.S. Citizenship required due to DoD contract and clearance requirements. * Able to obtain a FAA Level 3 Medical Certification from an FAA-designated Aviation Medical Examiner * Must be able to lift 25 pounds. Nice to have (Preferred Skills): * Active Top Secret (TS) security clearance. * DoD 8570/8140 certification (e.g., Security+ CE or higher). * Red Hat certifications (RHCSA, RHCE). * Experience with virtualization platforms (VMware, KVM). * Experience supporting cyber-compliant prototype or low-volume production systems. * Prior experience supporting operational DoD or Warfighter-focused systems. * Familiarity with secure system architectures and network design. * Experience with storage technologies (NFS, SAN, iSCSI). ## Description * Design, build, configure, and validate local, fielded, prototype, and low-volume production systems in support of multiple DoD contracts. * Install, secure, and maintain Red Hat Enterprise Linux (RHEL) systems across development, lab, and operational environments. * Implement and validate cyber-compliant configurations, including: + DISA STIG application and remediation + RMF control implementation and sustainment + SCAP and ACAS vulnerability scanning and mitigation * Support the design, installation, and configuration of systems and networks of varying complexity. * Collaborate with IT staff, Cyber Security teams, systems engineers, and program personnel to ensure system security and mission readiness. * Prepare systems and associated documentation for customer acceptance, deployment, and fielding activities. * Troubleshoot system, network, and security issues in lab and deployed environments. * Travel occasionally to customer sites, field locations, or integration events. * Provide limited after-hours support during critical build, deployment, or maintenance windows. * Develop and maintain technical documentation, system build procedures, and compliance artifacts. * Other duties, as assigned. ## Related Videos - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)