IT Systems Administrator (TS/SCI with Full Scope Polygraph Clearance Required)

This position sits within the Information Assurance Security team supporting restricted ground systems and classified DoD environments. The administrator will install and maintain servers, review security events and audit results, conduct vulnerability scans, implement corrective actions, and help manage systems through their full lifecycle. Responsibilities also include security testing, incident response, configuration management, media reviews, and compliance with system security plans. The role suits an experienced systems professional comfortable with RHEL, Windows, security assessment tools, and independent work in a regulated environment. Candidates must be U.S. citizens with an active TS/SCI clearance and full-scope polygraph, along with relevant education and experience.