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*

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• Design, deploy, and support Arista EOS-based data center networks
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• Configure and manage Leaf-Spine architecture with EVPN-VXLAN overlays
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• Strong experience with BGP (underlay/overlay), OSPF, and route redistribution
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• Implement and manage VXLAN, VTEPs, VRFs, and multi-tenant segmentation
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• Configure and troubleshoot MLAG, LACP, VLANs, and Layer 2/3 forwarding
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• Work on high-availability and redundancy mechanisms in DC networks
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• Perform traffic analysis, packet capture, and latency troubleshooting
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• Integrate Arista solutions with firewalls, load balancers, and WAN/SD-WAN
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• Use Arista CloudVision (CVP) for centralized management, telemetry, and automation
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• Support automation initiatives using Python, Ansible, or REST APIs
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• Troubleshoot routing loops, convergence issues, packet loss, and asymmetric routing
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Key Responsibilities*

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• Act as L2/L3 escalation point for Data Center and network-related incidents
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• Provide end-to-end support for DC network fabric (underlay & overlay)
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• Participate in LCM activities, upgrades, and change implementation
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• Perform Root Cause Analysis (RCA) and drive permanent fixes
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• Collaborate with cross-functional teams (security, application, cloud teams)
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• Ensure high availability, performance optimization, and design compliance
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• Maintain documentation, network diagrams, and SOPs
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