Designs, implements, monitors, and secures enterprise wired/wireless networks across multiple locations. Manages Aruba switches, Meraki wireless, Fortinet firewalls, SD-WAN, routing (OSPF/BGP), DNS/DHCP/NTP/IPAM, and cloud connectivity. Supports Zero Trust, 802.1X, vulnerability remediation, capacity planning, documentation, ISP coordination, and after-hours emergency support while participating in modernization and operational excellence initiatives.