RHEL Linux Systems Engineer – DoD, Hybrid Cloud

Thales-Trusted-Cyber-Technologies; Maryland; Hybrid; USD 110,000 - 140,000; Full time

Job summary

Thales-Trusted-Cyber-Technologies is seeking a Linux Administrator to manage Linux systems across on‑premises, air‑gapped, multi‑site, and cloud environments for a DoD defense contractor operating under CMMC requirements.

The role requires US citizenship, ability to obtain a Secret clearance, and 4–7+ years of hands-on Linux experience, with strong automation using Ansible and Red Hat Satellite/Insights, cloud proficiency, and CI/CD support for software engineering teams.

Qualifications

• U.S. Citizenship required and ability to obtain/maintain a U.S. Secret clearance.
• 4–7+ years of Linux systems administration experience, preferably in DoD or highly regulated environments.
• Strong experience with Red Hat Enterprise Linux (RHEL) environments, including RHEL 8/9+.
• Experience supporting multi-site environments, air-gapped/disconnected systems, and cloud deployments.
• Experience with cloud providers (AWS GovCloud, Azure Government) and CI/CD tooling.
• Experience writing scripts (Bash, Python) to automate tasks.
• Knowledge of STIGs, FIPS, and NIST SP 800-171 controls.

Responsibilities

• Provide system administration and systems engineering support for RHEL-based and non-RHEL systems across on-premises, air-gapped, multi-site, and cloud environments.
• Install, configure, harden, maintain, and patch Linux servers and workstations in various configurations.
• Enforce security baselines and compliance requirements (STIG, FIPS, CMMC 2/NIST SP 800-171) on Linux systems.
• Utilize automation tools (Satellite, Ansible, related technologies) to provision, configure, patch, and deploy Linux systems at scale.
• Support software engineering by maintaining development, build, and CI/CD-related Linux infrastructure.
• Monitor system performance, troubleshoot issues, and perform break/fix tasks.
• Automate routine tasks using cron, systemd timers, Ansible, etc.
• Maintain baselines, configuration management, and change records for air-gapped and secure systems.
• Regularly patch and remediate vulnerabilities in connected and disconnected environments.
• Collaborate with security, network, and engineering teams to meet project objectives.

Skills

Linux administration

Security/compliance

Cloud environments

Automation

Scripting (Bash/Python)

Team collaboration

CI/CD tooling

Education

Bachelor's degree in IT/CS or related field

Tools

Ansible

Red Hat Satellite/Insights

Terraform

Job description

Thales-Trusted-Cyber-Technologies is seeking a Linux Administrator to manage Linux systems across on‑premises, air‑gapped, multi‑site, and cloud environments for a DoD defense contractor operating under CMMC requirements.

The role requires US citizenship, ability to obtain a Secret clearance, and 4–7+ years of hands-on Linux experience, with strong automation using Ansible and Red Hat Satellite/Insights, cloud proficiency, and CI/CD support for software engineering teams.