Linux Engineer

Resource Management Concepts•Bethesda, MD

15h•Onsite

About The Position

Seeking a Linux Systems Administrator to provide day-to-day operations, deployment support, and system maintenance for enterprise Linux systems within Department of Defense (DoD) secure programs. This role focuses on maintaining system availability, implementing DISA STIG compliance, executing routine patching, supporting virtualized infrastructure, and writing baseline automation scripts across classified and air-gapped environments.

Requirements

Active DoD Top Secret clearance required to start.
3 to 6 years of hands-on Linux administration experience in enterprise or defense-oriented computing environments.
Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA Security+, CySA+, CCNA Security, or equivalent).
Solid foundation in administering, configuring, and maintaining RHEL 7/8/9 systems.
Familiarity with DISA STIG requirements and implementing SCAP compliance benchmarks.
Working knowledge of Bash scripting and exposure to Ansible execution and configuration management.
Associate or Bachelor’s degree in IT, Computer Science, or equivalent years of direct professional experience.

Nice To Haves

Red Hat Certified System Administrator (RHCSA) certification.
Familiarity with centralized logging and monitoring tools (Splunk, Syslog-ng, or Prometheus).

Responsibilities

Install, configure, and maintain Red Hat Enterprise Linux (RHEL 8/9) and Rocky Linux servers across physical and virtual environments.
Apply DISA Security Technical Implementation Guides (STIGs) to Linux endpoints and assist with vulnerability remediation based on ACAS/Nessus scan reports.
Execute scheduled software updates, errata, and IAVA patches across air-gapped enclaves using tools like Red Hat Satellite.
Utilize existing Ansible playbooks and write basic Bash or Python scripts to automate repetitive administrative and user-management tasks.
Assist in deploying, provisioning, and monitoring virtual machines within VMware vSphere or KVM environments.
Manage user accounts, directory bindings (SSSD, LDAP, Active Directory), and system access controls (PAM, sudo, PKI/CAC authentication).
Monitor system performance, audit logs, and hardware health; resolve routine operational tickets and escalate complex architectural issues.