The Senior Linux Systems Administrator serves as a technical subject matter expert responsible for the engineering, deployment, configuration, security compliance, and lifecycle maintenance of enterprise Red Hat Enterprise Linux (RHEL 7, 8, and 9) infrastructure supporting U.S. Army operations.
- Architect, deploy, configure, maintain, and decommission enterprise RHEL 7, 8, and 9 servers.
- Manage kernel updates, system upgrades, and package lifecycles via yum/dnf repositories integrated with Red Hat Satellite and centralized automation pipelines
- Develop, test and execute Ansible playbooks to automate day-to-day administrative tasks, configuration drifts, and routine maintenance
- Write and maintain Bash scripts for system automation
- Manage systemd service orchestration, enforce strict SELinux policies in enforcing mode, and manage container runtime environments using Docker
- Bachelor’s degree (BA/BS) in Computer Science, Information Technology, Engineering, or a related field
- Nice to have: RedHat certification
- Nice to have: Linux+ certification
- Nice to have: DoW and RHEL system integration experience
- Nice to have: DoW vulnerability remediation experience
Linux Systems AdministratorASRC Federal · Aberdeen Proving Ground, US