Network Engineer L3 (SDWAN)

L3 Network Engineer – Enterprise Network & Security Job Summary We are seeking an experienced L3 Network Engineer with strong expertise in enterprise LAN, WAN, Wireless, and Application Delivery technologies. The role demands deep technical proficiency, strong incident and SLA management experience, and the ability to lead and execute network project activities including migrations and handover to operations. Key Responsibilities Technical Operations & Support Act as L3 escalation point for complex network incidents across LAN, WAN, Wireless, and ADC environments Troubleshoot and resolve high-severity network issues within SLA Provide expert-level support for: Fortinet SD-WAN Cisco Catalyst LAN Switches Cisco WLC-based Wireless Networks F5 BIG-IP ADC (LTM, APM, WAF, basic iRules, traffic management) IPAM and DDI Solutions (DNS, DHCP, IP address management) Incident & Process Management Lead Major Incident Management (MIM) calls and drive incident resolution Ensure adherence to SLA and KPI targets Work on ticket management systems (ServiceNow or equivalent), including RCA and post-incident reviews Coordinate with vendors, ISPs, and internal stakeholders during incidents Project & Transition Activities Execute LAN/WAN Migration projects, including planning, implementation, and validation Prepare and maintain network documentation, including: Network design documents As-built documentation Standard operating procedures (SOPs) Create and update network topology diagrams Follow up with client project teams to track deliverables and milestones Perform handover to Operations teams, including knowledge transfer and runbook creation Required Technical Skills Networking & Security Strong hands-on experience with Fortinet SD-WAN In-depth knowledge of Cisco Catalyst switching (VLANs, STP, EtherChannel, QoS) Experience with Cisco Wireless Controllers and enterprise Wi-Fi deployments Working knowledge of F5 BIG-IP ADC (LTM, APM, WAF, Pools, Virtual Servers, SSL profiles) Experience with IPAM / DDI solutions Operational Skills Major Incident management and coordination SLA and uptime management Strong troubleshooting and root-cause analysis skills Excellent verbal and written communication Qualification & Experience Bachelor’s degree in Engineering, Computer Science, or equivalent experience 10–12 years of relevant enterprise network experience Experience working in ITIL-based service environments preferred Certifications (Preferred) CCNP / CCIE (Enterprise) Fortinet NSE (NSE 4 / NSE 5 / NSE 7) F5 Certified Administrator (101/201) ITIL Foundation Certification Soft Skills Strong analytical and problem-solving skills Ability to work independently and lead technical discussions Customer-focused mindset with strong stakeholder management Willingness to participate in on-call rotations if required