· Monitor network availability, performance, and reliability across enterprise environments. · Provide Level-3 support for complex network incidents, changes, and problems. · Configure, install, troubleshoot, and maintain routers, switches, firewalls, load balancers, wireless, and data center network components. · Plan, design, and execute IT changes and network projects with proper documentation and governance. · Perform trend analysis, identify potential network problems, and drive proactive remediation. · Create and maintain troubleshooting guides, knowledge articles, and operational documentation. · Ensure accurate incident, change, and problem records using standard ITSM processes. · Requirements · Strong understanding of OSI model, TCP/IP, routing, switching, VLANs, LACP, RSTP, IGMP, QoS, and routing protocols including BGP. · Hands-on experience with enterprise LAN, WAN, Wi-Fi, firewall, VPN, and data center network environments. · Experience with Cisco Nexus/NX-OS, F5 Load Balancers, ASA, Juniper SRX, Palo Alto, and multi-vendor Wi-Fi platforms such as Cisco and Juniper Mist. · Ability to troubleshoot complex network issues using monitoring tools and packet analysis tools such as Wireshark. · Good knowledge of incident, change, and problem management practices. Experience with F5 LTM, web application firewalls, RADIUS, IPVPN technologies such as GRE/IPsec, and network automation or scripting using Python and ansible. · Knowledge of ITIL framework and relevant networking certifications will be an added advantage.