RHEL Administrator

Location: Annapolis Junction, MD

Schedule: Full-time | Onsite

Clearance: Active Secret clearance required

Salary Range: $80,000–$110,000 annually

The Opportunity

We are hiring an experienced Red Hat Enterprise Linux (RHEL) Administrator to support secure, mission-critical systems for a federal program.

This is a hands-on Linux administration role focused on keeping enterprise RHEL environments stable, secure, compliant, and performing at their best. You’ll work across system administration, patching, security remediation, automation, performance tuning, and infrastructure support while collaborating with network, storage, application, and cybersecurity teams.

This position requires daily onsite work in Annapolis Junction, Maryland and an active Secret clearance.

What You’ll Do

• Administer, support, and optimize Red Hat Enterprise Linux environments running RHEL 7.x, 8.x, and 9.x, including installation, configuration, upgrades, and patch management.
• Perform day-to-day Linux administration, including user management, permissions, file systems, and network configuration.
• Monitor and analyze system performance, troubleshoot bottlenecks, and tune systems to improve reliability and efficiency.
• Perform backup, restore, and disaster recovery operations to protect data and maintain high availability.
• Evaluate and recommend hardware and software solutions based on changing technical and operational requirements.
• Create and maintain documentation covering system configurations, processes, operational procedures, and troubleshooting.
• Conduct vulnerability assessments and remediation using Tenable, HP WebInspect, and other industry-standard security tools.
• Investigate security incidents, assess risk, develop mitigation strategies, and implement proactive and reactive security measures.
• Apply and manage DISA STIGs and mitigate Known Exploitable Vulnerabilities (KEVs) to maintain security and compliance.
• Automate routine administration and system-management activities using Ansible Automation Platform (AAP), Bash, Python, and other scripting or automation tools.
• Collaborate with network, storage, application, and security teams to troubleshoot complex issues and support integrated solutions.
• Provide technical support and guidance for system integrations, migrations, and upgrades.

What You’ll Bring

• An active Secret clearance.
• U.S. citizenship. Due to contract requirements, candidates with dual citizenship cannot be considered.
• 7+ years of experience working as a System Administrator on Linux or Red Hat systems; related experience is acceptable.
• Ability to report onsite in Annapolis Junction, MD.
• Ability to reside within a commutable distance of Annapolis Junction for daily onsite work and on-call responsibilities.
• Willingness and ability to meet recall requirements for systems requiring 24x7x365 uptime, including participation in a rotational on-call schedule.

Technical Environment

You’ll work with technologies and practices that include:

• Red Hat Enterprise Linux — RHEL 7.x / 8.x / 9.x
• Ansible Automation Platform (AAP)
• Bash and Python
• Tenable
• HP WebInspect
• DISA STIGs
• Known Exploitable Vulnerability (KEV) remediation
• Linux patching and upgrades
• Backup, restoration, and disaster recovery
• System performance monitoring and tuning
• Vulnerability remediation and security hardening
• Linux networking, file systems, permissions, and user administration

Compensation

The annual salary range for this position is $80,000–$110,000.