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