Role description

About the Role

We are seeking an experienced Network Security Engineer to manage and enhance our enterprise network security infrastructure. The ideal candidate will have strong hands-on expertise in Fortinet Next-Generation Firewalls (FortiGate) and Zscaler Internet Access (ZIA)/Zscaler Private Access (ZPA), ensuring secure connectivity across on-premises, cloud, and remote environments.

This role requires a proactive engineer with robust troubleshooting skills, operational excellence, and experience working in enterprise network security environments.

Key Responsibilities

- Administer, monitor, and optimize Fortinet FortiGate Next-Generation Firewalls (NGFW).
- Manage and support Zscaler ZIA and ZPA cloud security platforms.
- Perform firewall upgrades, patching, firmware updates, and lifecycle management.
- Configure, maintain, and optimize firewall policies, security rules, NAT, VPNs, and access controls.
- Monitor the health, performance, and availability of network security platforms.
- Manage IDS/IPS, proxy services, and network security controls.
- Troubleshoot complex network security incidents and perform root cause analysis.
- Coordinate with Fortinet and Zscaler support teams for issue resolution.
- Participate in change management activities, including firewall rule implementations and maintenance windows.
- Work closely with Network Engineering, Cloud, Infrastructure, and SOC teams to strengthen the organization's security posture.
- Perform security policy reviews, configuration audits,



version compliance checks, and performance tuning.
- Maintain technical documentation, SOPs, operational runbooks, and architecture diagrams.

Required Skills

- 7 to 9years of experience in Network Security Engineering or Security Operations.
- Strong hands-on experience with Fortinet FortiGate Firewalls.
- Hands-on experience with Zscaler ZIA and/or ZPA.
- Experience managing firewall policies, VPNs, NAT, IDS/IPS, and proxy technologies.
- Experience with firewall upgrades, patching, and lifecycle management.
- Strong knowledge of TCP/IP, routing, switching, DNS, and network protocols.
- Experience with monitoring, incident management, ticketing systems, and change management processes.
- Excellent troubleshooting, analytical, and documentation skills.

Skills

Patch Management, Change Management, Cloud Security, Production Support, Cloud Security, Fortinet FortiGate, IDS/IPS, Network Security

About UST
UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact—touching billions of lives in the process.

📌 Network Security Engineer (India)
🏢 UST
📍 India