Lead design, configuration, security, and troubleshooting of classified and unclassified DoD enterprise networks. Manage Cisco infrastructure (routers, switches, firewalls, ISE), enforce DISA STIGs and RMF/NIST controls, support SIPRNet/NIPRNet/JWICS, mentor junior staff, and assist with ATO/compliance and network modernization efforts.

Provide senior-level administration and daily operations for classified DoD networks and systems (Collateral, SCI, SAP). Maintain JSIG/RMF compliance, operate SIEM and security tools, support incident response, perform system/network administration, patch/configuration management, and assist infrastructure modernization for secure environments.