DoD Linux Systems Engineer – STIGs & Automation

RMC - Resource Management Concepts Inc.; Bethesda (MD); On-site; USD 125,000 - 155,000; Full time

Benefits offered by this job

RHCSA certification

Centralized logging familiarity

Job summary

RMC - Resource Management Concepts Inc. in Bethesda, MD is seeking a Linux Systems Administrator to support enterprise Linux systems for DoD secure programs.

The role emphasizes system availability, STIG compliance, patching, automation, and virtualization support. Responsibilities include configuring RHEL 8/9 and Rocky Linux, applying STIGs, maintaining air-gapped environments, and writing automation scripts with Bash and Ansible.

Qualifications

• Active DoD Top Secret clearance required to start.
• 3–6 years of hands-on Linux administration experience in enterprise/defense environments.
• Active DoD 8570/8140 IAT Level II certification (e.g., Security+, CySA+, CCNA Security).
• RHEL 7/8/9 administration and security hardening including STIGs.

Responsibilities

• Install, configure, and maintain RHEL 8/9 and Rocky Linux servers across physical and virtual environments.
• Apply DISA STIGs to Linux endpoints and assist with vulnerability remediation per ACAS/Nessus reports.
• Execute scheduled updates and IAVA patches across air-gapped enclaves using Red Hat Satellite.
• Write Bash/Python scripts and use Ansible to automate repetitive admin tasks.
• Assist in deploying and monitoring VMware vSphere or KVM virtual machines.
• Manage user accounts, LDAP/AD bindings, PAM, sudo, and PKI/CAC authentication.
• Monitor performance, logs, and hardware health; triage tickets and escalate complex issues.

Skills

Bash scripting

Ansible

Linux administration

Security clearance

Education

Associate or Bachelor's degree in IT/CS

Tools

Red Hat Satellite

VMware vSphere / KVM

SSSD/LDAP/AD

ACAS/Nessus

Job description

RMC - Resource Management Concepts Inc. in Bethesda, MD is seeking a Linux Systems Administrator to support enterprise Linux systems for DoD secure programs.

The role emphasizes system availability, STIG compliance, patching, automation, and virtualization support. Responsibilities include configuring RHEL 8/9 and Rocky Linux, applying STIGs, maintaining air-gapped environments, and writing automation scripts with Bash and Ansible.