Linux Systems Administrator — Enterprise IT & Automation

General Dynamics - IT; Arlington (VA); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Growth opportunities

Internal mobility

Competitive pay & PTO

Military-friendly culture

Job summary

General Dynamics - IT is seeking a Linux Systems Administrator to support mission‑critical enterprise infrastructure in a DoD environment. You will administer Red Hat Enterprise Linux systems, perform OS installation, patching, upgrades, monitoring, and troubleshooting, and contribute to automation with Bash/Python, Ansible, and GitLab.

You will work with diverse teams across networks, cybersecurity, and application management, maintaining documentation and supporting on-call operations to

Qualifications

• Bachelor's degree; 4 years may substitute in lieu of degree.
• Active DoD Secret clearance or higher at time of hire.
• CompTIA Security+ CE or equivalent DoD cybersecurity cert.
• RHCSA/RHCE or equivalent Linux/infrastructure certs.
• 3–5 years Linux administration experience in production.

Responsibilities

• Administer and maintain RHEL systems for mission-critical apps.
• Install, patch, upgrade, troubleshoot, and maintain OS and apps.
• Monitor health, performance, storage, logs, services, and connectivity.
• Automate repetitive tasks with Bash, Python, Ansible; support GitLab workflows.
• Support virtualization (VMware) and enterprise infrastructure management.
• Apply DISA STIGs and document procedures; assist on-call support.

Skills

Linux administration

Troubleshooting

Automation

Documentation

Collaboration

Education

Bachelor's Degree

DoD Secret clearance

CompTIA Security+ CE

RHCSA/RHCE or equivalent

Tools

Red Hat Enterprise Linux

VMware

Ansible

GitLab

Python

Bash

Job description

General Dynamics - IT is seeking a Linux Systems Administrator to support mission‑critical enterprise infrastructure in a DoD environment. You will administer Red Hat Enterprise Linux systems, perform OS installation, patching, upgrades, monitoring, and troubleshooting, and contribute to automation with Bash/Python, Ansible, and GitLab.

You will work with diverse teams across networks, cybersecurity, and application management, maintaining documentation and supporting on-call operations to