Walk-in | Network admin

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

Job summary

Tata Consultancy Services in Chennai seeks an experienced Network Administrator to support global enterprise infrastructure. The candidate will handle Cisco/Arista routing, Meraki management, Palo Alto SD‑WAN, F5 load balancers, and DNS/IPAM tasks with strong troubleshooting and communication skills.

Hands-on WAN troubleshooting, VPN/configuration, and ISE/TACACS admin experience are essential. This role requires coordinating with ISPs and vendors and maintaining security policies across

Qualifications

• Hands-on experience in troubleshooting complex network environments and supporting global enterprise infrastructure.
• Experience with enterprise WAN/LW devices and vendor coordination.
• Ability to manage incidents, changes, and security policy implementations.

Responsibilities

• Provide Level‑2 / Level‑3 support for Cisco, Arista, Palo Alto, F5, and Meraki networks.
• Troubleshoot and maintain enterprise and data center network infrastructure.
• Manage incidents, service requests, and change activities per SLAs.
• Perform device configuration, upgrades, migrations, and troubleshooting.
• Coordinate with ISPs for WAN/circuit issues.
• Engage with Cisco TAC and vendors for resolution and RMA.
• Participate in network audits and documentation updates.

Skills

Cisco & Arista Routing & Switching

BGP

OSPF

EIGRP

MPLS

WAN troubleshooting

Meraki administration

VPN configuration

ISE/TACACS administration

Palo Alto SD-WAN

F5 Load Balancer administration

NAT & Firewall Policy

Infoblox DNS/DHCP/IPAM

Meraki Dashboard

Datadog

Zenoss

ISP coordination

Cisco TAC liaison

Troubleshooting & analytics

Tools

Meraki Dashboard

Datadog

Zenoss

Job description

Job Title: Network Administration

Experience: 5-15 Years

Interview Mode: Face2Face (Walk in Drive )

Interview Date: 26-Sep-26

Interview Location: TCS Chennai One IT SEZ, Module-4, 3rd Floor, South Block, Thoraipakkam, Chennai - 600097

Important Note: Before applying, please read the Job Description carefully and thoroughly to ensure your experience and skills match the requirements mentioned below.

Hiring: Network Admin Having more than 5 Years of Experience

Job Summary

We are looking for an experienced Network Engineer with strong expertise in Cisco Routing & Switching, Cisco Meraki, Palo Alto SD-WAN, F5 Load Balancer, and Enterprise Network Operations. The ideal candidate should have hands‑on experience in troubleshooting complex network environments and supporting global enterprise infrastructure.

Key Skills Required:

Strong experience in Cisco & Arista Routing and Switching
Hands‑on knowledge of BGP, OSPF, EIGRP, and MPLS
Experience in WAN troubleshooting and network performance monitoring
Cisco Meraki administration, VPN configuration, and firmware upgrades
Cisco ISE/TACACS administration and access management
Palo Alto SD-WAN (Prisma ION 9000) support and troubleshooting
F5 Load Balancer administration (VIP, Pool, and Node management)
Palo Alto & Cisco ASA Firewall administration
NAT, Security Policies, and Firewall Rule Management
Infoblox DNS, DHCP, and IP Address Management (IPAM)
Experience with monitoring tools such as Meraki Dashboard, Datadog, and Zenoss
Coordination with ISPs, Cisco TAC, and vendors for issue resolution
Strong troubleshooting, analytical, and communication skills

Key Responsibilities:

• Provide Level‑2 /Level‑3 support for Cisco, Arista, Palo Alto, F5, and Meraki network environments.
• Troubleshoot and maintain enterprise and data center network infrastructure.
• Manage incidents, service requests, and change activities as per agreed SLAs.
• Perform network device configuration, upgrades, migrations, and troubleshooting.
• Coordinate with ISPs and service providers for WAN and circuit‑related issues.
• Engage with Cisco TAC and vendor support teams for problem resolution and RMA activities.
• Participate in network audits, documentation updates, and service review meetings.