Tata Consultancy Services

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Network Administrator

🗓️ Posted 2026-09-15 Chennai Full-time Hybrid ICT

💰 Salary Not shared 📊 Market ₹35,000–₹70,000/mo (₹420,000–₹840,000/yr)

About the Company

Tata Consultancy Services (TCS) is the technology partner of choice for industry leading organizations worldwide. Since its inception in 1968, TCS has upheld the highest standards of innovation, engineering excellence, and customer service. It has set an aspiration to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence. Rooted in the heritage of the Tata Group, TCS is focused on creating long term value for its clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 55 countries and 202 service delivery centers across the world, the company has been recognized as a top employer in six continents. With the ability to rapidly apply and scale new technologies, the company has built long term partnerships with its clients - helping them emerge as perpetually adaptive enterprises. Many of these relationships have endured into decades and navigated every technology cycle, from mainframes in the 1970s to artificial intelligence today. TCS sponsors 14 of the world's most prestigious marathons and endurance events, including the TCS New York City Marathon, TCS London Marathon and TCS Sydney Marathon with a focus on promoting health, sustainability, and community empowerment. Caution against fraudulent job offers: TCS doesn't charge any fee throughout the recruitment process. Refer here: https://www.tcs.com/careers/india/recruitment-fraud-alert Information Technology & Services Specialties: IT Services, Business Solutions, Consulting

About the Role

We are looking for an experienced L3 Palo Alto Firewall Administrator with 10+ years of hands-on experience in Network Security. The candidate should have strong expertise in Palo Alto Next-Generation Firewalls (NGFW), troubleshooting complex security issues, and leading firewall operations in enterprise environments.

Responsibilities

● Provide L3 Support for Palo Alto Firewall infrastructure.
● Manage firewall policies, configurations, upgrades, and deployments.
● Troubleshoot complex network security incidents and provide root cause analysis.
● Perform firewall health checks, audits, and security assessments.
● Implement and support VPN solutions and secure remote access.
● Work with cross-functional teams during major incidents and change activities.
● Ensure compliance with organizational security standards and best practices.

Requirements

● 10+ years of experience in Network Security and Firewall Administration.
● Strong hands-on experience with Palo Alto Firewalls (L3 Support).
● Expertise in Panorama Management.
● Deep knowledge of Security Policies, NAT, VPN (IPSec & GlobalProtect).
● Experience in Firewall Rule Analysis, Optimization, and Migration.
● Strong troubleshooting skills for security and network incidents.
● Good knowledge of TCP/IP, Routing, Switching, DNS, DHCP.
● Experience in High Availability (HA) Deployment and Management.
● Hands-on experience with Threat Prevention, URL Filtering, WildFire, IDS/IPS.
● Experience in handling Major Incidents, RCA, and Change Management.
● Knowledge of security best practices and compliance standards.
● Experience with FortiGate Firewalls (good to have).
● Experience with SD-WAN Technologies (good to have).
● Exposure to Cisco ASA, Check Point, or Fortinet (good to have).
● Certifications such as PCNSE, PCNSA, CCNP Security (good to have).