Linux Systems Administrator

Oxford Global Resources Government Division; Warner Robins (GA); On-site; USD 90,000 - 120,000; Full time

Job summary

A leading defense contractor is looking for a Senior IT System Administrator to support a long-term DoD program in Warner Robins, Georgia. You will manage classified Red Hat environments and collaborate with engineering teams to ensure system performance and security. Required qualifications include an active Top Secret/SCI clearance, Security+ certification, and extensive experience with RHEL systems. This is an independent role that requires expert knowledge in system administration. Competitive compensation is offered.

Qualifications

• Active Top Secret/SCI clearance required.
• 6+ years of experience administering RHEL systems essential.
• Strong written and verbal communication skills are crucial.

Responsibilities

• Administer and maintain RHEL systems in classified environments.
• Support system sustainment and product development.
• Install and configure LAN/WAN network communications.

Skills

Red Hat Enterprise Linux (RHEL)

System administration

Cloud platforms (AWS, Azure)

Containerization technologies

Security+ CE certification

Strong communication skills

Tools

Puppet Enterprise

Red Hat Satellite

Job description

Overview

Oxford Global Resources is supporting a direct-hire opportunity for a Senior IT System Administrator on a long-term, mission-critical DoD program. This role supports classified systems across sustainment, development, and lab environments and requires a senior-level professional capable of operating independently in a secure, fast-paced setting.

Responsibilities

• Administer and maintain Red Hat Enterprise Linux (RHEL) systems in classified environments
• Support system sustainment, product development, and lab operations
• Provide system administration support for Operational Flight Program (OFP) and Test Program Set (TPS) activities
• Evaluate current system architectures and support large-scale system planning and upgrades
• Install, configure, and support LAN/WAN network communications
• Support containerized applications and cloud-based environments
• Collaborate with engineering teams to ensure system performance, reliability, and security
• Operate at a Senior/SME level with minimal oversight

Required Qualifications

• Active Top Secret/SCI clearance (must be able to maintain)
• Security+ CE certification
• Red Hat Certified System Administrator (RHCSA)
• 6+ years of experience administering RHEL systems
• Hands-on experience with Puppet Enterprise and Red Hat Satellite
• Experience with software containerization technologies
• Exposure to cloud platforms such as AWS and/or Microsoft Azure
• Strong written and verbal communication skills

Preferred Qualifications

• 5+ years supporting DoD programs
• Demonstrated ability to learn and adopt new technologies
• Expert knowledge of system administration principles, practices, and procedures