Greetings from TCS TCS is Hiring for Network Engineer(L3) Desired Experience: 6- 8 years Job Location: Chennai Job Description: Administer and support enterprise LAN/WAN network infrastructure. · Configure and manage firewalls including security policies, NAT, and access control rules. · Implement and troubleshoot routing protocols such as BGP, OSPF, and static routing. · Manage Layer 2 and Layer 3 switching including VLANs, trunking, STP, port-channels, and vPC. · Support Cisco ACI fabric using APIC for configuration and monitoring. · Configure and manage EPGs, contracts, policies, VLAN pools, and physical domains in ACI. · Implement and support L3Out connectivity to external networks and firewalls. · Monitor and troubleshoot network performance, latency, and availability. · Execute network changes, upgrades, and migrations as per approved change processes. · Provide L2/L3 support, incident resolution, RCA, and problem management. · Participate in DR drills, audits, and security revie...