JD :-
Job Title: WAN L3 Engineer
Location: Chennai, India
Role Type: Full time (Customer Site)
Job Summary:
We are seeking a highly skilled L3 Routing & Switching Engineer to provide onsite technical expertise for our enterprise network infrastructure. The ideal candidate will be responsible for complex troubleshooting, large-scale network migrations, and the implementation of robust network solutions. You will serve as the primary point of escalation for network-related issues and work closely with the customer’s internal teams to ensure high availability and performance.
Key Responsibilities:
Advanced Troubleshooting: Act as the L3 escalation point for complex routing, switching, and connectivity issues. Perform root cause analysis (RCA) and implement permanent fixes.

Routing Optimization: Manage and optimize complex BGP and static routing environments to ensure efficient traffic flow and redundancy.
Infrastructure Maintenance: Perform routine health checks, firmware upgrades, and configuration audits on core network devices.
Documentation: Maintain accurate network diagrams,



configuration documentation, and standard operating procedures (SOPs).
Collaboration: Work alongside security and data center teams to integrate firewall policies and ACI fabric configurations.

Technical Requirements (Must-Haves):
Routing Protocols: Deep expertise in BGP (multi-homing, path manipulation) and advanced static routing configurations.
Switching: Strong understanding of Layer 2/Layer 3 switching, including VLANs, STP, Port-channels, and HSRP/VRRP.
Migration Experience: Proven track record in executing large-scale network migrations with minimal downtime.
Troubleshooting: Proficiency in using packet capture tools (Wireshark/TCP Dump) and CLI-based diagnostic commands.
Experience: 7+ years of experience in network engineering, with at least 3 years in a customer-facing or L3 support role.

Preferred Skills (Good-to-Have)
Cisco ACI: Experience with Application Centric Infrastructur

📌 WANEngineer and Security Engineer (Chennai)
🏢 Avacend
📍 Chennai