T
Theomnihire
Network Security Lead Engineer
Chennai, INOn-sitePermanentFull-time
Posted Sep 5, 2026
Requirements
Responsibilities:
- Overall, the job requires supporting the firewalls and other network security components in the Olam environment located across various regions and countries.
- Supporting the setup, upgrade and migration of firewalls, VPN, web proxies etc.
- Analyze the new requirements based on input from various IT teams and provide solutions to meet the business requirements while maintaining the security posture of the enterprise.
- Identify opportunities for strengthening network security posture in the datacenter, regions, and cloud.
Skills and Qualifications:
- Level 2-3 support of firewall technologies includes Fortinet firewalls, Palo Alto Firewalls, Azure native firewalls, AWS native firewalls & other next- gen firewalls.
- Hands-on experience on centralized management of firewalls through Panorama, Forti-Manager etc.,
- Hands-on experience of configuring firewalls into SDWAN networks
- Working knowledge on handling security related issues on cloud environments primarily on Azure, AWS, etc.,
- Must have experience on handling Zscaler web proxy environment.
- Must have experience on handling Cloud networking environment either on Azure, AWS handling on NSG, Application Gateway, Load Balancer, Peering etc.
- Must have experience in handling and troubleshooting Client to site VPN environment.
- Must have experience analyzing and implementing complex firewall rules on security devices (FortiGate, Palo Alto, AWS & Azure native Firewalls).
- Demonstrated ability to analyze network traffic flows to reverse-engineer the required firewall ports and rules to allow secure access of applications
- Strong technical ability to troubleshoot firewall problems in a large enterprise involving complex network application flows between multiple hosts spanning multiple firewalls/security zones and different geographic locations
- A comprehensive knowledge of IP networking and network security including Intrusion Detection, DMZ, encryption, IPsec, SSL VPNs, MPLS/VPN, Site to Site VPN tunnels, SSL/VPN, proxy services etc.
- Must have strong analytical and problem-solving skills and a solid understanding of how to troubleshoot connectivity and performance issues that involve firewalls, SDWAN, MPLS network connectivity and applications
- Must have experience on handling NAC (Network Access/Admission Control).
- Other security components are value added like DNS security, MFA etc.,
- Good hands-on experience in creating network diagrams, Network architecture diagram, Schematic diagrams in using MS Visio.
- Able to support on night shifts based on client requirements.
Role snapshot
Job type
Full-time
Required skills
Fortinet (FortiGate) firewall administrationPalo Alto firewall administrationAzure native firewall managementAWS native firewall managementCentralized firewall management (Panorama, FortiManager)SD-WAN integration and firewall configurationCloud networking (NSG, Application Gateway, Load Balancer, Peering)Zscaler web proxy administrationVPN technologies (Client-to-site, Site-to-site, IPsec, SSL VPN)Designing and implementing complex firewall rulesNetwork traffic analysis to derive firewall ports/rules and troubleshoot flowsIP networking and network security fundamentals (IDS, DMZ, MPLS, encryption)Network Access Control (NAC) administrationNetwork diagramming and architecture using MS VisioTroubleshooting connectivity and performance involving firewalls, SD-WAN, and MPLS
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