Role Summary We are seeking an experienced Network Implementation Engineer (L3) with solid expertise in Routing & Switching, Firewall, SD-WAN, Load Balancers (F5), and Web Application Firewall (WAF) technologies. The candidate will be responsible for designing, implementing, migrating, and supporting complex enterprise network and security environments.

Key Responsibilities
Design, implement, and support enterprise network infrastructure. Perform network implementation, migration, and transformation activities. Configure and troubleshoot Routing & Switching technologies in large enterprise environments. Deploy and support SD-WAN solutions across multiple locations. Implement and manage Firewall policies, NAT rules, VPNs, and security controls. Configure and maintain Load Balancers (F5 LTM/GTM). Implement and support Web Application Firewall (WAF) solutions. Perform network assessments, health checks, and optimization activities. Troubleshoot complex Layer 2, Layer 3, and security-related issues. Participate in change management, root cause analysis (RCA), and problem management. Collaborate with internal teams, customers, and vendors during project implementation. Prepare implementation plans, HLD, LLD, and operational documentation. Provide L3 escalation support for critical incidents.



Mandatory Technical Skills Routing & Switching Cisco Routing & Switching BGP OSPF EIGRP MPLS VLANs STP/RSTP/MSTP HSRP/VRRP EtherChannel IPv4 & IPv6 Firewall Hands-on implementation and troubleshooting experience in one or more: Palo Alto Fortinet FortiGate Check Point Cisco Firepower (FTD) Cisco ASA SD-WAN Cisco Viptela SD-WAN Cisco SD-WAN Aruba EdgeConnect (Silver Peak) WAN Optimization Application-Aware Routing SD-WAN Policy Configuration Load Balancer F5 BIG-IP LTM F5 GTM/DNS SSL Offloading Load Balancing Policies Health Monitors High Availability Configuration Web Application Firewall (WAF) F5 ASM/AWAF Imperva WAF Cloudflare WAF WAF Policy Management Application Security Rules OWASP Top 10 Concepts Experience Required 10+ years of experience in Network & Security domain Minimum 5+ years of experience in implementation and migration projects. Strong enterprise networking and security experience. Hands-on experience in production environments. Experience in global infrastructure deployments and support. Preferred Certifications CCNP Enterprise CCNP Security F5 Certified Administrator (101/201) PCNSA / PCNSE (Palo Alto) NSE 4/NSE 5 (Fortinet) Check Point CCSA / CCSE Cisco SD-WAN Certification Key Competencies Strong troubleshooting and analytical skills. Excellent communication and stakeholder management. Customer-facing project implementation experience. Ability to work under pressure during critical network changes. Good documentation and reporting skills.

📌 Senior Network Implementation, Migration Engineer( SDWAN, Firewalls, R&S)_Kolkata (Kolkata)
🏢 NTT DATA
📍 Kolkata