We are looking for a Senior Network Security Engineer to support network security and infrastructure initiatives across LAN, Wi-Fi, data center, and firewall environments. You will work with Fortinet, Cisco, and Aruba technologies, supporting firewall policy administration, IPsec VPNs, network re-IP activities, OT monitoring deployments, and cybersecurity initiatives in a global enterprise environment.

Your tasks

Administering Fortinet firewall policies and IPsec VPN configurations, including routing and encryption domains
Reviewing LAN infrastructure and configuring SPAN ports to support OT monitoring device deployments
Planning and executing network re-IP activities across hardware, LAN, Wi-Fi, and data center environments
Monitoring firewall and network logs, identifying potential issues, and supporting security hardening activities
Troubleshooting Cisco, Aruba, Fortinet, and Meraki network infrastructure to maintain reliable connectivity
Supporting firewall audits, identifying required rules and configurations, and implementing cybersecurity improvements




Collaborating with cybersecurity, infrastructure, and other technical teams to deliver network and security initiatives
Supporting additional network projects and operational activities, including troubleshooting, configuration changes, and infrastructure enhancements

Requirements

Minimum 6 years of experience in network engineering, network security, or infrastructure roles
Strong hands-on experience with Fortinet/FortiGate, firewall policy administration, and IPsec VPN technologies
Valuable knowledge of Cisco and Aruba networking technologies, including LAN, Wi-Fi, VLANs, and SPAN configuration
Experience with network re-IP planning, addressing, hardware reconfiguration, and related migration activities
Strong understanding of general networking across data center, LAN, and Wi-Fi environments
Experience with firewall audits, security initiatives, log analysis, routing, encryption domains, and network hardening

📌 Senior Network Security Engineer (India)
🏢 Sii Poland
📍 India