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Larsen & Toubro

Firewall Engineer

Larsen & Toubro
India · Full-time · Entry

Job Purpose

We are seeking a Firewall Engineer to maintain and enhance our IT security team with a focus on firewall management, VPN configuration, and network security. This role prioritizes designing secure network architectures, implementing firewall policies, and ensuring robust security postures for enterprise environments.

Roles & Responsibilities

  • Firewall Management: Deploy, configure, maintain, and troubleshoot Palo Alto and FortiGate firewalls.
  • Security Policy Implementation: Define, enforce, and optimize firewall rules and security policies based on best practices.
  • Threat Prevention and SIEM: Monitor and respond to firewall security alerts, ensuring protection against cyber threats. Monitor and configure FortiSIEM.
  • Network Security Architecture: Assist in designing and implementing secure network infrastructures.
  • Upgrades & Patch Management: Perform firmware upgrades, patching, and version updates for firewalls.
  • VPN & Remote Access: Configure and manage Site-to-Site VPNs, SSL VPNs, and IPSec tunnels.
  • Integration & Automation: Work with security tools, SIEM solutions, and automation frameworks for enhanced security monitoring.
  • Incident Response: Investigate and resolve firewall-related security incidents and connectivity issues.
  • Documentation & Reporting: Maintain accurate network security documentation, including firewall rules, change logs, and compliance reports.
  • Compliance & Audits: Ensure firewall configurations comply with security policies, industry standards (ISO 27001, NIST, PCI-DSS), and audit requirements.

Relevant Experience

  • 4 to 7 years of hands-on experience in firewall administration, with a strong focus on Palo Alto Networks and Fortinet FortiGate.
  • Deep understanding of firewall rule sets, NAT, security zones, and UTM features.
  • Proficiency in configuring Palo Alto Panorama and Forti Manager for centralized firewall management.
  • Strong knowledge of threat intelligence, IDS/IPS, and security best practices.
  • Experience in SSL decryption, application control, and web filtering.
  • Familiarity with cloud security configurations (AWS, Azure, or GCP firewalling).
  • Strong grasp of TCP/IP, VLANs, VPNs, routing protocols (BGP, OSPF), and SD-WAN solutions.
  • Hands-on experience with network troubleshooting tools (Wireshark, TCPDump).

Certifications

  • Palo Alto Networks Certified Network Security Engineer (PCNSE)
  • Fortinet NSE 4/5/6/7 (Network Security Expert)
  • CCNP Security, or other relevant certifications are a plus

Key Skills

Ranked by relevance

firewall network security palo alto vpns siem ssl patch management cloud security wireshark fortinet ipsec cloud nist ospf aws gcp vpn wan bgp dss nat
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Posted
Mar 28, 2025
Type
Full-time
Level
Entry
Location
Chennai

Industries

Executive Offices

Categories

Information Technology

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