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
Solid 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