System Administrator - Linux

System Administrator Linux (Red Hat Enterprise Linux)

Electrosoft Services, Inc. is an award-winning company that provides comprehensive technology-based solutions and services to federal customers. While cybersecurity is our specialty, we also focus on ICAM, enterprise IT modernization, and software solutions. We always seek to delight our customers, so we retain highly qualified employees and offer them meaningful work, growth opportunities, and work-life balance. The camaraderie we share emanates from Lunch & Learn sessions where we explore new ideas together, fun group activities ranging from escape rooms to miniature golf, and much, much more. If we've described you and your dream workplace, please apply and share in the many benefits and opportunities we offer.

Position Summary

We are seeking a highly skilled and experienced Systems Administrator Linux (Red Hat Enterprise Linux) to support a mission-critical federal program. The ideal candidate will have deep expertise in Red Hat Enterprise Linux, scripting, automation, and networking, and will play a key role in designing, implementing, maintaining, and optimizing Linux environments.

Key Responsibilities

• Design, implement, maintain, and troubleshoot Red Hat Enterprise Linux Server environments (v8v9).
• Develop and maintain advanced automation scripts using BASH, Perl, JavaScript, or Python.
• Perform administration and O&M tasks from the command line.
• Manage task automation using tools like Ansible and RHEL Satellite.
• Handle package management across geographically dispersed environments.
• Configure and manage NFTables, Firewalld, IPTables, ISC2 BIND DNS, TCP / IP, IPv4 / IPv6, Postfix / SMTP Relay.
• Administer Linux Server Clustering, NFSv3 / NFSv4, PXE boot, and SELinux.
• Support Mirantis Container Runtime (formerly Docker), AWS, and GitLab.
• Maintain detailed documentation for system designs, configurations, processes, and service records.
• Collaborate with cross-functional teams to support IT infrastructure projects.
• Lead and mentor junior team members.
• Troubleshoot and resolve LAN / WAN connectivity and performance issues.
• Ensure compliance with security hardening standards (CIS, NIST SP 80053 Rev. 5, DISA STIGs).

Required Qualifications

All qualified applicants are considered for employment, and employees are treated during employment without regard to race, color, religion, sex, national origin, age, citizenship, disability, or Veteran status. Additionally, the company provides reasonable accommodations to qualified individuals with disabilities.