Arista L3 Network Engineer

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
• Strong 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