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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # UNIX/Linux OS Administrator - **Company:** General Dynamics Information Technology - **Location:** Offutt Air Force Base, NE, United States - **Experience:** Experienced - **Salary:** $112,840.0 - $120,750.0 - **Contract:** Permanent contract - **Skills:** Unix, Ubuntu (Operating System), CentOS, Cloud Computing, Configuration Management, Linux, Monitoring of Systems, Hyper-V, IT Management, Kernel-Based Virtual Machine, Linux Distribution, Linux Servers, NIPRNet, Red Hat Enterprise Linux, SAP (Applications), Virtual Machines, Software Vulnerability Management, SUSE Linux, Selinux, Information Technology, Iptables, Network Support, CIS Benchmarks, Firewall Services Module, Vmware - **Published:** August 23, 2026 - **Apply:** https://dejobs.org/x/x/C07E9D60AB354439977B114A3FD7EE34/job/ ## About the Role Backup and Recovery (Software),Enterprise IT,Linux,Operating Systems (OS) Experience: 3 + years of related experience, * BS degree; may be substituted for additional years of experience * 3+ years of IT/DoD configuration management experience * Security Clearance Level: Top Secret with SCI eligibility * Required Certifications: ITIL 4 Foundation certified within 9 months of start; GFACT or CND or Security+ or GSEC * Location: Offutt AFB, NE * Strong experience with Linux distributions (RHEL, CentOS, Ubuntu, SUSE) * Experience with VMware, Hyper-V, KVM, or cloud-based VMs * Understanding of security hardening standards (DISA STIGs, CIS benchmarks) * OS patching and vulnerability remediation * SELinux or AppArmor experience * Managing firewall rules (firewalld, iptables) * Secure configuration of SSH, PAM, sudo policies * Strong troubleshooting communication (translating technical issues) * Incident response and root-cause analysis * Ability to escalate and collaborate with networking, storage, and security teams ## Description Make meaningful contributions that fuel critical outcomes for some of the most complex government, defense, and intelligence projects. Join GDIT as a UNIX/Linux OS Administrator for a career where your growth is just as important as the mission you support., As a UNIX/Linux OS Administrator, the work you'll do at GDIT will be impactful to the mission of USSTRATCOM. USSTRATCOM is a Combatant Command responsible for strategic deterrence, nuclear operations, and enterprise IT services essential to national security. It oversees Nuclear Command, Control, and Communications (NC3), Joint Electromagnetic Spectrum Operations (JEMSO), Global Strike, and Missile Threat Assessments, working closely with other Combatant Commands, Services, and defense agencies. SCITLS will be a key component that will ensure mission success and the safety of the U.S. and its allies by providing 24/7 IT services and network support for NIPRNet, SIPRNet, JWICS, and SAP/SAR environment. You will play a crucial role in providing administration support in the following areas: * Perform systems administration for enterprise Linux/Unix solution. * Install, configure, and maintain Linux/Unix operating systems. * Analyze and resolve problems associated with the operating system's servers, hardware, applications, and software. * Monitor system performance and ensure compliance with security standards. * Monitor everyday system, evaluate availability of all server resources, and performs all activities for Linux servers. * Assist with configuring and deploying all virtual machines and install and provide backup to all configuration procedures. * Maintain and monitor all patch releases, designs various patch installation strategies, and maintain all systems according to program standards. * Provides Tier 2 and 3 troubleshooting support, interfacing the end users and other technical teams from a service support perspective. * Conduct Security Technical Implementation Guide (STIG) compliance assessments, harden Linux systems according to DoD standards, and ensure adherence to security policies and procedures. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [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) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer)