Linux Systems Administrator — Enterprise IT & Automation (DoD)

General Dynamics Information Technology; Arlington (VA); On-site; USD 90,000 - 140,000; Full time

Job summary

General Dynamics Information Technology is seeking a Linux Systems Administrator in Arlington, VA to manage mission-critical Linux infrastructure and related enterprise apps. You will install, patch, monitor, and troubleshoot Red Hat systems, while enabling automation via Bash/Python scripts, Ansible, and GitLab.

You will collaborate with security, networking, and application teams, maintain documentation, and participate in on-call support and upgrades in a DoD context.

Qualifications

• Bachelor’s Degree with 3–5 years of Linux administration experience.
• Active DoD Secret clearance or higher at time of hire.
• Current CompTIA Security+ CE or DoD cybersecurity requirements.
• Technical discipline certifications such as RHCSA/RHCE or Ansible/Linux Foundation.
• Hands-on Linux administration in production environments; troubleshooting skills.

Responsibilities

• Administer and maintain Red Hat Enterprise Linux systems for enterprise apps.
• Install, configure, patch, upgrade, troubleshoot, and maintain OS lifecycle.
• Monitor health, performance, storage, logs, and services.
• Troubleshoot OS, app, storage, connectivity, authentication issues.
• Support Linux in VMware and other virtualized environments.
• Participate in upgrades, configuration changes, testing, and restoration.
• Apply DISA STIGs and security patches; develop automation scripts.
• Develop Bash/Python scripts; support Ansible and GitLab automation.
• Document procedures and maintain recovery guides; cross-train with teams.

Skills

Linux administration

Troubleshooting

Automation

Scripting (Bash/Python)

DC/VMware knowledge

Security patching

Documentation

Collaboration

Education

Bachelor's Degree

Tools

Red Hat Enterprise Linux

VMware

Ansible

GitLab

RHCSA/RHCE

Job description

General Dynamics Information Technology is seeking a Linux Systems Administrator in Arlington, VA to manage mission-critical Linux infrastructure and related enterprise apps. You will install, patch, monitor, and troubleshoot Red Hat systems, while enabling automation via Bash/Python scripts, Ansible, and GitLab.

You will collaborate with security, networking, and application teams, maintain documentation, and participate in on-call support and upgrades in a DoD context.