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 settings.
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 Rule

📌 Senior Network Implementation, Migration Engineer Sdwan, Firewalls, R&s Kolkata Kolkata
🏢 NTT Data
📍 Kolkata