Design, configure, and implement secure and scalable network solutions across LAN, WAN, WLAN, and VPN environments. Maintain and improve network infrastructure, including routing (OSPF, BGP), switching, and wireless technologies. Troubleshoot and resolve complex network issues (L2/L3) and provide 3rd line technical support. Monitor network performance using tools like Catalyst Center, Zabbix, and NetFlow. Ensure network security by configuring and managing firewalls, VPNs, identity solutions, and Cisco ISE.