Linux Systems Administrator (Cybersecurity)

TL;DR

Linux Systems Administrator (Cybersecurity): Lead administration of RHEL environments across dev, lab, and production for cyber incident response lab infrastructure with an accent on Ansible automation, Splunk monitoring, and large-scale configuration management. Focus on implementing STIG-compliant security controls, developing dashboards and alerts, troubleshooting storage and network issues, and ensuring system reliability.

Location: Requires on-site work in Arlington, VA 2-3 days per week; U.S. Citizenship and active DoD Secret clearance required; must be able to obtain DHS Suitability

Company

Small business specializing in IT and cybersecurity solutions for U.S. Federal agencies.

What you will do

• Oversee RHEL environments and perform configuration management across Windows, MacOS, Linux/Unix, and virtual systems for TEN lab infrastructure.
• Develop and maintain Ansible playbooks for automation of deployments and provisioning using Red Hat Ansible Automation Platform.
• Administer Splunk Enterprise/Cloud for monitoring, security analytics, and develop dashboards/alerts for system health and security events.
• Implement security controls including STIG compliance, access management, backups, and audit configurations.
• Troubleshoot complex storage, network issues, and remediate performance problems across enterprise systems.
• Advise on lab SOPs/policies and identify efficiencies in procedures.

Requirements

• U.S. Citizenship; active DoD Secret clearance (TS/SCI preferred); able to obtain DHS Suitability
• 5+ years as Linux System Administrator; 3+ years Splunk Enterprise admin and log ingestion; 3+ years Ansible (Core/Tower/AAP)
• BS in Computer Science/Engineering or related, or HS Diploma +7 years lab/sysadmin experience
• Experience with multiple OS (Linux/Unix, Windows, MacOS)
• Ability to work collaboratively across physical locations

Nice to have

• Experience writing technical/SOP procedures
• Virtualization automation and optimization
• DoD 8140.01 IAT Level II certification

Culture & Benefits

• 95% employer-paid medical, dental, vision; 100% life, STD, LTD disability
• 401k with company match and profit sharing
• Flexible Spending Account (FSA)
• 11 holidays + 3 weeks annual leave