TCS IS HIRING FOR Network Admin ( Cisco . Arista )

Tata Consultancy Services; Chennai District; On-site; INR 600,000 - 1,200,000; Full time

Job summary

Tata Consultancy Services in Chennai is seeking an experienced network engineer to manage enterprise infrastructure, including WAN, data center networks, and security policy deployment.

The role covers BGP/OSPF routing, firewall configuration, VPNs, and collaboration with service providers to ensure reliable, secure connectivity across MPLS and internet paths.

Candidates should be proficient with Meraki, Infoblox, F5 load balancers, and Terraform-driven policies.

Qualifications

• Experience with ITIL and incident management processes.
• Strong troubleshooting of enterprise networks (MPLS, BGP/OSPF).
• Hands-on with data center spine/leaf architectures and L2/L3 routing.
• Coordination with service providers for link issues and TAC support.
• Knowledge of security policy deployment and firewall configurations.

Responsibilities

• Configure and troubleshoot WAN links using BGP and MPLS.
• Deploy VLANs and resolve end-user network issues promptly.
• Monitor Cisco Meraki WAN/VPN configurations and dashboards.
• Perform firmware upgrades and device replacements as needed.
• Configure Palo Alto/ASA firewalls and NAT rules.
• Work with Terraform for policy deployment and security rules.

Skills

ITIL Familiarity

BGP Routing

VLAN Deployment

Cisco Meraki

Palo Alto SD-WAN

Firewall Configuration

Terraform

Infoblox DNS/DHCP

Datadog Monitoring

Vendor Coordination

Tools

Meraki Dashboard

Infoblox

F5 Load Balancer

Terraform

Palo Alto Firewall

Job description

• Familiarity with ITIL processes, ticketing tools, change and problem management.
• Routing & Switching - BGP configuration & Troubleshooting WAN links.
• Deploy new vlan and troubleshooting end user network issue.
• Cisco Meraki - Monitoring and VPN configuration.
• Firmware upgrade - RMA Device replacement.
• Palo-alto SD-WAN (Prisma ION 9000) - Configuration and traffic re-route.
• Firmware upgrade.
• Experience in troubleshooting Enterprise infrastructure involving MPLS, EGP (BGP) and IGP (OSPF) protocols & Static configuration.
• Good experience in Datacenter Network spine/leaf architecture & troubleshooting.
• F5 Load balancer - Adding/Deleting nodes, VIP creation.
• Firmware upgrade.
• Firewall (ASA / Palo Alto) - NAT, Policy creation, object-group.
• Firmware Upgrade - Security policy creation via Terraform.
• Infoblox - DNS/DHCP creation and subnet allocation.
• Experience in coordination tasks with service provider for link issues.
• Experience in working with Cisco for TAC and RMA support.
• Exposure Data Dog and Cisco Meraki Dashboards.
• Participate in firewall design, deployments, and migrations.
• Ensure compliance with security standards and audit requirements.
• Review logs regularly to identify threats and recommend improvements.