Linux System Administrator - Cleared

RDTS is seeking a Cleared Linux System Administrator to support a mission-critical IT program at the U.S. Dept of Treasury in Washington, D.C. The Linux System Administrator supports the design, implementation, and ongoing management of enterprise-level UNIX/Linux systems within the Insider Threat Platform (ITP) environment. This role ensures the stability, security, and performance of critical infrastructure by executing system administration best practices, performing advanced troubleshooting, and collaborating with cross-functional technical teams.

This position is fully on-site in downtown D.C. and full-time with a standard work schedule (i.e. Monday-Friday, 8:00am-5:00pm). We are only considering candidates with an active security clearance. Once selected, candidates will undergo an extensive federal suitability review.

• Active Security Clearance; U.S. citizenship required
• Bachelors degree in Computer Science, Information Technology, Cybersecurity, or related discipline
  or equivalent professional experience administering enterprise UNIX/Linux systems.
• Demonstrated experience managing and supporting UNIX/Linux servers in an enterprise or mission-critical environment.
• Strong proficiency in Linux installation, configuration, hardening, and lifecycle management.
• Hands-on experience with system monitoring, performance tuning, and advanced troubleshooting.
• Experience performing regular security checks, vulnerability remediation, and compliance-driven system maintenance.
• Proficiency with shell scripting (e.g., Bash, Python) to automate operational tasks.
• Working knowledge of network fundamentals including TCP/IP, DNS, routing, and firewalls.
• Experience supporting backup and recovery processes, fault-tolerant configurations, and data protection strategies.
• Ability to provide Tier III support for complex technical issues.
• Experience documenting operational procedures, configuration standards, and troubleshooting guides.
• Ability to collaborate with engineering, security, and cross-functional technical teams.

All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, age, marital status, pregnancy, genetic information, or other legally protected status.

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