Network Engineer – LAN, WLAN & Security

Role Summary

We are seeking an experienced
Network Engineer
with solid 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.

Technical Skills

LAN & Data Center Networking
- Aruba LAN / Aruba Switching
- STP, VLAN, VXLAN
- Spine‑Leaf architecture
- Arista switching
(preferred)
- Data Center networking concepts

WLAN
- Aruba Wireless
- Aruba Central
- Instant Access Points (IAP)

Firewall & Security
- Palo Alto Firewalls
- Network
zoning and segmentation

Network Access Control
- Aruba ClearPass
- Authentication and authorization
- Policy enforcement
- Profiling and access control

📌 Network Switching(LAN Technology) (Chennai)
🏢 Tata Consultancy Services
📍 Chennai