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Network Security Engineer

Tata Consultancy Services

3 - 5 years

Chennai

Posted: 15/04/2026

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Job Description

Role: Network Security Engineer

Location: Mumbai, Chennai, Hyderabad

Experience: 5+ Years


Skills: PaloAlto or Cisco, Firewall, F5, Zscaler or Fortigate


Walkin Interview on 18th April Saturday

Mumbai: TCS Yantra Park Pokharan Road Number 2, TCS Approach Rd, Thane West, Thane, Maharashtra 400606

Chennai: TCS Ozone Techno Park No. 1/13, Old Mahabalipuram Road (OMR), Navallur, Chennai - 603103

Hyderabad: TCS Deccan Park, Plot No.1, Hitech City Main Rd, Software Units Layout, HUDA Techno Enclave, Madhapur, Hyderabad, Telangana 500081

Role Responsibilities


  • Provide first-level support for firewall and VPN-related security issues.
  • Monitor security related alerts, firewall logs, and VPN activity for anomalies or potential threats.
  • Report generation on firewalls as per Managers request and guidance.
  • Update and manage incidents, changes, and service requests in ServiceNow in a timely and accurate manner.
  • Support access requests, rule changes, and configuration updates under guidance and as per SOP.
  • Escalate unresolved or complex issues to Network Security Manager.
  • Collaborate with network, infrastructure, and security teams to maintain a secure environment.
  • Document resolution steps and contribute to knowledge base articles for recurring issues.
  • Prepare and submit monthly metrics, reports, and dashboards related to incident volumes, SLA compliance, and resolution trends
  • Any other responsibilities assigned by the Manager.

Qualifications & Experience

  • 23 years of experience in network security or cybersecurity operations.
  • Familiarity with the ease of navigation of firewall management tools including Panorama, Strata Cloud Manager, and Cisco FMC is mandatory.
  • Experience with incident/ticket management systems (e.g., ServiceNow).
  • Working knowledge of:
  • Palo Alto firewalls (basic monitoring, rule verification, troubleshooting)
  • Cisco ASA/Firepower firewall platforms
  • VPN technologies
  • Understanding of basic networking (TCP/IP, routing, ports, and protocols).
  • Strong attention to detail with good analytical skills.
  • Excellent written and verbal communication skills.
  • Ability to work in US shifts

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