Data Network

Tata Consultancy Services; Delhi; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Tata Consultancy Services in Delhi NCR is seeking a Data Network professional with 6-12 years of experience to design, configure and troubleshoot advanced routing and switching infrastructure. The role requires hands-on work with Cisco routers, Nexus switches, ASR/ISR routers, and VXLAN-based data center networks.

You will work across distributed teams, ensuring 24x7 support readiness, and you must communicate clearly in English.

Qualifications

• 6–12 years of data network experience.
• Experience configuring Cisco routers and switches.
• Expertise in BGP and EIGRP.
• Knowledge of VXLAN, FEX, vPC, and Nexus 9k.
• Strong TCP/IP, routing protocols, and troubleshooting skills.
• Ability to work in shifts for 24x7 support.
• Excellent English communication and collaboration.

Skills

Cisco routing

Nexus 9k

VXLAN

FEX & vPC

BGP

EIGRP

NAT

GRE VPN

IPsec VPN

Route maps & ACL

TCP/IP

Tools

Cisco IOS

NX-OS

ASR/ISR routers

Nexus switches

VXLAN config

Job description

Role-Data Network.

Experience-6 to 12 yrs.

Location-Delhi NCR.

Job Requirements-

Configuration and troubleshooting knowledge on Routing,

Configuration and troubleshooting experience in Cisco network devices (Routers, Nexus switches & Core Layer 3 catalyst switches)

Good Knowledge & troubleshooting experience in Cisco ASR & ISR routers.

Good Knowledge & troubleshooting experience in Cisco Nexus 9k switches.

Configuration & troubleshooting knowledge in Fabric Extender Technology (FEX), virtual Port Channel (vPC), and Virtual Extensible LAN (VXLAN)

Good Knowledge in DC Routing & Switching infrastructure

Configuration & troubleshooting knowledge in BGP routing protocol (ASN, PBR, Route-reflectors, community, Tags & Attributes)

Configuration & troubleshooting knowledge in EIGRP routing protocol (load balancing, topology & Metrics)

redistribution of routes between different routing protocols

Good Knowledge in GRE VPN

Good knowledge in IPSEC VPN (IKE V2)

Good Knowledge in NAT configuration

Good knowledge in Route-mapsACL & Prefix list

Good Understanding of TCP/IP, Routing protocols,

Good remote troubleshooting skills.

Excellent analytical and organizational skills and the ability to work with multiple geographically dispersed teams.

Excellent listening skills & ability to communicate clearly and fluently in English.

Flexibility to work in shifts for 24x7 supports.

Strong team player with a constructive perspective and commitment to the success of the business.

Ability to work on multiple concurrent tasks with conflicting priorities