RHEL Systems Administrator — Onsite, Secret Clearance

Mount Indie; Maryland; On-site; USD 80,000 - 110,000; Full time

Job summary

Mount Indie is seeking an experienced RHEL Administrator to support secure, mission-critical Linux environments for a federal program. This role requires daily onsite work in Annapolis Junction, MD and an active Secret clearance.

You will manage RHEL 7.x/8.x/9.x systems, perform patching, security remediation, automation, and capacity planning while collaborating with network, storage, and cybersecurity teams to ensure high availability and compliance.

Qualifications

• 7+ years of Linux/Red Hat System Administrator experience.
• Active Secret clearance and U.S. citizenship.
• Willingness to report onsite daily in Annapolis Junction, MD.

Responsibilities

• Administer and optimize RHEL 7.x/8.x/9.x environments, including install, config, upgrades, and patch mgmt.
• Handle day-to-day Linux administration: users, permissions, FS, and networking.
• Monitor performance, troubleshoot, and tune systems for reliability and efficiency.
• Perform backup, restore, and disaster recovery operations.
• Evaluate hardware/software solutions per requirements and standards.
• Create and maintain documentation for configurations and procedures.
• Conduct vulnerability assessments and remediation using Tenable, HP WebInspect, and similar tools.
• Investigate security incidents, assess risk, and implement mitigations.
• Apply DISA STIGs and remediate KEVs to maintain compliance.
• Automate admin tasks using Bash, Python, and Ansible; collaborate with teams.

Skills

Linux administration

Security remediation

System hardening

Documentation

Patching/upgrades

Tools

Ansible Automation Platform (AAP)

Bash

Python

Tenable

HP WebInspect

DISA STIGs

Job description

Mount Indie is seeking an experienced RHEL Administrator to support secure, mission-critical Linux environments for a federal program. This role requires daily onsite work in Annapolis Junction, MD and an active Secret clearance.

You will manage RHEL 7.x/8.x/9.x systems, perform patching, security remediation, automation, and capacity planning while collaborating with network, storage, and cybersecurity teams to ensure high availability and compliance.