Role: Network Engineer LAN, WLAN & Security-Walkin Drive
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.

Location: TCS Kumaran Nagar, 415/21-24, TNHB Main Rd, Chennai, Tamil Nadu 60011

9
Key Responsibiliti
esDesign, implement, and support Enterprise LAN and WLAN environment
s.Configure, manage, and troubleshoot Aruba LAN and switching infrastructur
e.Support Data Center networking including modern architectures such as SpineLeaf and VXLA
N.Implement and manage Layer2 and Layer3 technologies including STP and VLAN
s.Operate and support Aruba Wireless solutions, ensuring optimal performance and availabilit
y.Manage Firewall security using Palo Alto, including zoning and segmentatio
n.Administer Aruba ClearPass for Network Access Control (NAC),



authentication, authorization, and policy enforcemen
t.Perform incident, problem, and change management activities in line with ITIL processe
s.Conduct root cause analysis (RCA) and support continuous service improvemen
t.Maintain accurate network documentation, diagrams, and configuration record
s.Collaborate with crossfunctional teams, vendors, and stakeholders during transitions and BAU operation

s.
Technical Ski
llsLAN & Data Center Network
ingAruba LAN / Aruba Switch
ingSTP, VLAN, VX
LANSpineLeaf architect
ureArista switching (preferr
ed)Data Center networking conce
ptsW
LANAruba Wirel
essAruba Cent
ralInstant Access Points (I
AP)Firewall & Secur
ityPalo Alto Firewa
llsNetwork zoning and segmentat
ionNetwork Access Cont
rolAruba ClearP
assAuthentication and authorizat
ionPolicy enforcem
entProfiling and access cont
rolExperience & Qualificati
ons10–12 years of experience in Enterpri

📌 Network Engineer-Walkin Drive (Chennai)
🏢 Tata Consultancy Services
📍 Chennai