We are looking for a highly experienced L3/L4 Network & Security Engineer with strong hands-on experience in Routing, Switching, Enterprise Firewalls, Network Implementation, Troubleshooting and Migration Projects.

The candidate must be able to independently handle end-to-end network and firewall activities, including configuration, implementation, troubleshooting, upgrades, replacement and migration.

Key responsibilities

- Palo Alto: Primary firewall technology and mandatory hands-on expertise. Cisco Firepower/FTD, Sophos and FortiGate are secondary firewall technologies.
- Palo Alto Panorama: Administration, configuration, centralized policy management, monitoring, troubleshooting and validation.
- Routers: Configuration, troubleshooting, upgrades, replacement and migration.
- Switches: Access, Distribution, Core and Data Center switching; configuration, troubleshooting, upgrades, replacement and migration.
- Routing: BGP, OSPF, EIGRP, Static Routing, PBR, VRF, route redistribution and route filtering.
- Switching: VLAN, trunking, STP/RSTP/MSTP, LACP/EtherChannel, HSRP/VRRP and VPC/MLAG.
- Firewall Configuration: Security policies, NAT, routing, VPN, HA, security profiles, objects, zones and logging.
- Firewall Migration: End-to-end migration from one firewall vendor/platform to another, including discovery, assessment, policy conversion/mapping, object migration, NAT, routing, VPN, testing, cutover, rollback and post-migration troubleshooting.
- Multi-Site Firewall Migration: Experience supporting or leading multi-site firewall migration and deployment activities, including site-wise planning, cutover, validation, rollback and post-cutover stabilization.




- Network Migration: Core, Distribution, WAN, Internet Edge and Data Center migrations, including IP, VLAN and routing migrations.
- Implementation: Greenfield and existing-environment deployments, including end-to-end implementation, testing and validation.
- Troubleshooting: Device-level, protocol-level, packet-level and end-to-end application connectivity troubleshooting across network and firewall infrastructure.
- Major Incidents: P1/P2 incident troubleshooting, resolution, escalation management and Root Cause Analysis (RCA).
- Network & Firewall Optimization: Network performance, routing, firewall rules, HA, capacity and architecture optimization.
- SOW & Technical Validation: Ability to technically review and validate the SOW, proposed solution, HLD/LLD, implementation approach, dependencies, risks and technical requirements.
- Design Review: Review network and firewall designs and provide technical recommendations before implementation or migration.
- Migration Planning & Cutover: Develop and review migration plans, MOPs, test plans and rollback procedures; support planned production cutovers, including night/weekend maintenance windows when required.
- Post-Migration Stabilization: Perform post-cutover validation, troubleshooting, issue resolution and stabilization of the network and firewall setting.
- Customer-Facing Activities: Work directly with customers, technical stakeholders and project teams for requirements, design discussions, technical reviews, migration planning, implementation and issue resolution.

Knowledge Transfer: Conduct knowledge-transfer sessions and provide technical handover

📌 Senior Network Security Engineer (Coimbatore)
🏢 Virtual Tech Gurus India
📍 Coimbatore