Design, deploy, and maintain Layer 2/Layer 3 network infrastructure using Cisco Catalyst/Nexus, Aruba, and Ruckus switching platforms. Configure and optimize dynamic routing protocols such as OSPF, BGP, and EIGRP across multi-site environments. Implement and manage firewall policies, NAT rules, and VPN configurations on Fortinet FortiGate and Check Point firewalls. Perform network segmentation using VLANs, ACLs, and trunking to ensure secure and efficient