Greetings from Tata Consultancy Services (TCS)

What we are looking for: Network and Firewall SME

Location : Chennai/Delhi NCR

Interview Mode : Virtual mode (Microsoft Teams)

Experience : 6-8 Years

Design, implement, and troubleshoot DMVPN architectures (Hub-and-Spoke, Phase 1/2/3).

Configure and maintain EIGRP routing across multi-site networks.

Perform routing optimization, path selection, and convergence troubleshooting.

Implement and support IPsec VPN tunnels, site-to-site VPN solutions.

Ensure high availability, redundancy, and performance in WAN infrastructure.

Deploy, configure, and manage Cisco Catalyst and Nexus switches (2K/3K/5K/7K/9K series).

Implement VLANs, trunking, STP, EtherChannel, VTP, HSRP/VRRP/GLBP.

Configure and troubleshoot Nexus features such as: vPC, FabricPath, OTV, FEX

Ensure optimal LAN performance, security, and segmentation

Deploy and maintain enterprise WLAN solutions including Cisco WLCs and Access Points.

Configure SSIDs, authentication (WPA2/WPA3, 802.1X),

Troubleshoot wireless connectivity, roaming, and performance issues

Perform root cause analysis, incident response, and capacity planning.

📌 Network and Firewall SME - Chennai
🏢 Tata Consultancy Services
📍 Chennai