ValidaTek is seeking an Network Administrator - Mid at Fort Belvoir, VA to support large-scale migration and operations on a large, high-profile DOD contract. The I3TS program provides enterprise-wide IT support to enable DTRA's Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA's internal and external mission partners operating in CONUS and OCONUS locations. The ideal candidate will be detail-oriented and proactive Network Administrator to support mission-critical federal IT infrastructure. You will monitor, analyze, troubleshoot, and escalate incidents within federal networks and systems to ensure optimal performance and continuous availability. This role is part of a 24/7/365 operations environment and may require shift work, including nights, weekends, and holidays. Primary focus will be on, handling internal projects for operations, supporting driving time-sensitive initiatives, supports ITIL service area activities (problem management, incident management, service request fulfillment, etc.) and specific tasks to a successful conclusion, operations management, configuration/change management, service level agreements (SLA). This position requires U.S. citizenship with an active TS/SCI clearance.