Position Overview

A federal contractor is looking for an experienced Linux systems administrator to support a mission critical federal program. This role covers design, implementation, and ongoing maintenance of Red Hat Enterprise Linux environments, with heavy emphasis on scripting, automation, and networking.

Responsibilities

• Design, implement, and troubleshoot RHEL server environments (versions 8 and 9)
• Build and maintain automation scripts in BASH, Perl, JavaScript, or Python
• Handle day to day administration and operations from the command line
• Automate tasks with Ansible and RHEL Satellite
• Manage package deployment across geographically dispersed environments
• Configure and manage NFTables, Firewalld, IPTables, BIND DNS, TCP/IP, IPv4/IPv6, and Postfix/SMTP relay
• Administer Linux server clustering, NFSv3/NFSv4, PXE boot, and SELinux
• Support container runtime environments, AWS, and GitLab
• Maintain documentation for system designs, configurations, and service records
• Partner with cross functional IT teams on infrastructure projects
• Mentor junior team members
• Troubleshoot LAN/WAN connectivity and performance issues
• Ensure compliance with security hardening standards (CIS, NIST SP 800-53 Rev. 5, DISA STIGs)

Qualifications

• Bachelor's degree in computer science, information systems, cybersecurity, or a related field, or equivalent experience
• 10+ years administering Linux/UNIX systems, including interoperability with Windows
• Current Red Hat certification (RHCSA, RHCE, or RHCA)
• Strong scripting skills in BASH, Perl, JavaScript, or Python
• Experience with Ansible, RHEL Satellite, and similar automation tools
• Familiarity with container runtimes, AWS, and GitLab
• Strong problem solving, communication, and documentation skills
• Comfortable working independently and as part of a team
• Willing to participate in a 24/7/365 on call rotation