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L3 Network Security Specialist

Tata Consultancy Services

India, India, India Full-time June 12, 2026
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Vacancy Description

Greetings from TCS!!


Walkin with TCS for Network Security / Data Security L3 role


Exp: 6 to 10 years

Location: Chennai

Interview Mode: Walkin

Interview Date: 13 Jun (Sat)

Interview Venue: Tata Consultancy Services, Kumaran nagar, Sholinganallur - Chennai


Job Description:


  • Administer and support enterprise LAN/WAN network infrastructure.
  • Configure and manage firewalls including security policies, NAT, and access control rules.
  • Implement and troubleshoot routing protocols such as BGP, OSPF, and static routing.
  • Manage Layer 2 and Layer 3 switching including VLANs, trunking, STP, port-channels, and vPC.
  • Support Cisco ACI fabric using APIC for configuration and monitoring.
  • Configure and manage EPGs, contracts, policies, VLAN pools, and physical d...

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