Network Switching(LAN Technology)

Tata Consultancy Services; Chennai District; On-site; INR 900,000 - 1,800,000; Full time

Job summary

Tata Consultancy Services in Chennai is seeking an experienced Network Engineer to design, implement, and troubleshoot campus and data center networks with emphasis on Aruba LAN, WLAN, and NAC security.

The role focuses on Aruba ClearPass, Palo Alto firewalls, and modern data center architectures like Spine-Leaf and VXLAN, with ITIL-aligned incident, problem, and change management responsibilities.

Qualifications

• Proven experience in designing and operating enterprise networks.
• Strong hands-on skills in Aruba LAN/WLAN and NAC security.
• Familiarity with Spine-Leaf and VXLAN architectures.

Responsibilities

• Design, implement, and support Enterprise LAN and WLAN environments.
• Configure Aruba LAN/Switching infrastructure and troubleshoot issues.
• Support data center networking including Spine-Leaf and VXLAN.
• Implement Layer-2/3 technologies with STP and VLANs.
• Operate Aruba Wireless solutions for performance and availability.
• Manage firewall security using Palo Alto with zoning and segmentation.
• Administer Aruba ClearPass for NAC, authentication, and policy enforcement.
• Perform incident, problem, and change management per ITIL.
• Conduct RCA and drive continuous service improvement.
• Maintain accurate network documentation and diagrams.
• Collaborate with cross-functional teams, vendors, and stakeholders.

Skills

Enterprise LAN

WLAN

Firewall Security

NAC

Aruba switching

Aruba Wireless

Palo Alto firewalls

Aruba ClearPass

Network troubleshooting

ITIL processes

Tools

Aruba switches

Palo Alto Firewalls

Aruba Wireless

VXLAN

Job description

We are seeking an experienced Network Engineer with strong expertise in Enterprise LAN, WLAN, Firewall Security, and Network Access Control (NAC) technologies. The role involves design, implementation, operations, and troubleshooting of campus and data center network environments, with a strong focus on Aruba switching, Aruba Wireless, Palo Alto firewalls, and Aruba ClearPass.

Key Responsibilities

• Design, implement, and support Enterprise LAN and WLAN environments.
• Configure, manage, and troubleshoot Aruba LAN and switching infrastructure.
• Support Data Center networking including modern architectures such as Spine-Leaf and VXLAN.
• Implement and manage Layer-2 and Layer-3 technologies including STP and VLANs.
• Operate and support Aruba Wireless solutions, ensuring optimal performance and availability.
• Manage Firewall security using Palo Alto, including zoning and segmentation.
• Administer Aruba ClearPass for Network Access Control (NAC), authentication, authorization, and policy enforcement.
• Perform incident, problem, and change management activities in line with ITIL processes.
• Conduct root cause analysis (RCA) and support continuous service improvement.
• Maintain accurate network documentation, diagrams, and configuration records.
• Collaborate with cross-functional teams, vendors, and stakeholders during transitions and BAU operations.