System Admin L3 - TS/SCI Poly required with Security Clearance

System Admin L3 - TS/SCI Poly required We are seeking an experienced Telecommunications / Network Support Engineer to support mission-critical infrastructure and operational environments. The selected candidate will provide telecommunications support, infrastructure monitoring, network maintenance, and operational coordination in a 24/7 support environment. This role requires close coordination with ISP and Gateway GES watch staff, customers, and technical support personnel to ensure timely res…