Systems Administrator SME (TS/SCI with Poly Required) with Security Clearance

Job Category: IT Infrastructure and Operations Requisition Number: SYSTE002208 Posting Details * Posted: July 9, 2026 * Full-Time * On-site * Salary Range: $142,792 USD to $238,451.20 USD Job Details Description GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics…