Dear Professionals ,

TCS is Hiring For Network Security Engineer Role for Chennai Location.

Total Experience -6+ years

Rel Exp-6 Years

Skills -Network Security Engineer, LAN, WAN, Palo Alto Firewalls

Location - TCS Magnum Block, Chennai One IT SEZ Phase-2, 200 Feet Radial Road, MCN Nagar Extension, Thoraipakkam, Chennai, Tamil Nadu 600097

Date -20th-June-2026

Interview -Mode -Face2Face

Must Have :

Design, deploy, configure, and maintain Palo Alto Firewalls (PA series) across enterprise and data center environments.
Manage firewall configurations including security policies, NAT rules, App‑ID, URL filtering, threat prevention, and decryption.
Administer Panorama for centralized policy management, templates, and device groups.
Conduct firewall rule reviews, optimization, and cleanup in line with least‑privilege principles.
Troubleshoot complex traffic flow, policy enforcement, performance, and security issues using logs, packet captures, and monitoring tools.
Implement and support VPN solutions including IPSec and GlobalProtect (site‑to‑site and remote access).
Perform firewall upgrades, patches, hotfixes, and maintenance, coordinating with business stakeholders and CAB.
Develop and maintain technical documentation, SOPs, and network diagrams.
Work closely with security and compliance teams to ensure risk mitigation and adherence to security standards.
Configure, administer, and support F5 BIG‑IP (LTM / GTM) environments.
Manage Virtual Servers, Pools, iRules, Profiles, and Health Monitors.
Troubleshoot application availability, traffic distribution, and failover issues.
Support SSL offloading, persistence, and high‑availability configurations.
Perform upgrades, patching, and performance optimization activities.
Design, implement, and support Data Center network infrastructure (Core, Aggregation, Access layers).
Configure and manage Layer 2 / Layer 3 technologies including VLANs, STP, LACP, OSPF, BGP, VRRP/HSRP.
Troubleshoot complex latency, packet drops, routing loops, and convergence issues.

Act as L2 / L3 escalation point for critical P1/P2 Network incidents.
Strong hands‑on experience with Palo Alto NGFW configuration and operations
Expertise in Panorama, Global Protect, Wildfire, and Threat Prevention subscriptions
Solid networking fundamentals: TCP/IP, OSI, VLANs, routing (BGP, OSPF), NAT
Experience in LAN/WAN, Data Center, and hybrid environments
Hands‑on with packet analysis and firewall log analysis (e.g., traffic flow troubleshooting)
Ensure adherence to ITIL processes for Incident, Problem, and Change Management.
Perform Root Cause Analysis (RCA) and implement permanent corrective actions.
Experience in maintenance activities, upgrades, and change implementation

Thanks & Regards,

RITESH RAVI

HR – Talent Acquisition Group || TCS NOIDA ||

Mail to: - [HIDDEN TEXT]

TATA CONSULTANCY SERVICES ||Website: http://www.tcs.com ||