TCS is Hiring for Arista L3 Network Engineer Exp:- 8to 12yr. Location:- Chennai

JD Arista Switching (EOS, EVPN-VXLAN, Leaf-Spine, MLAG)

Routing & L3 Technologies (BGP, OSPF, VRF, Route Redistribution)

Data Center Architecture & Fabric Design (CLOS, Spine-Leaf)

Job Requirements* Design, deploy, and support

Arista EOS-based data center networks Configure and manage

Leaf-Spine architecture with EVPN-VXLAN overlays Robust experience with

BGP (underlay/overlay), OSPF, and route redistribution Implement and manage

VXLAN, VTEPs, VRFs, and multi-tenant segmentation Configure and troubleshoot

MLAG, LACP, VLANs, and Layer 2/3 forwarding Work on high-availability and redundancy mechanisms in DC networks Perform traffic analysis, packet capture, and latency troubleshooting Integrate Arista solutions with firewalls, load balancers, and WAN/SD-WAN Use

Arista CloudVision (CVP)

for centralized management,



telemetry, and automation Support automation initiatives using Python, Ansible, or REST APIs Troubleshoot routing loops, convergence issues, packet loss, and asymmetric routing Key Responsibilities* Act as

L2/L3 escalation point for Data Center and network-related incidents Provide end-to-end support for DC network fabric (underlay & overlay) Participate in

LCM activities, upgrades, and change implementation Perform

Root Cause Analysis (RCA)

and drive permanent fixes Collaborate with cross-functional teams (security, application, cloud teams) Ensure high availability, performance optimization, and design compliance Maintain documentation, network diagrams, and SOPs

📌 AristaNetwork Engineer (Chennai)
🏢 Tata Consultancy Services
📍 Chennai