Network Engineer L3

Roles and Responsibilities :

• Own end-to-end L3 network operations covering incident, problem, change, configuration, capacity, availability, and service continuity management.
• Act as the highest operational escalation point for major incidents, critical outages, recurring failures, and complex network performance issues.
• Lead technical troubleshooting across LAN, WAN, SD-WAN, MPLS, routing, switching, wireless, firewall, proxy, VPN, DNS, DHCP, and IP address management services.
• Drive deep-dive root cause analysis for major and recurring incidents, establish corrective and preventive actions, track problem records to closure, and validate recurrence reduction.
• Lead technical bridge calls during P1/P2 incidents, coordinate restoration activities, provide clear technical updates, and support post-incident reviews.
• Review and approve high-risk network changes, implementation plans, rollback procedures, validation steps, and post-change outcomes.
• Validate network designs, low-level designs, configurations, standards, and implementation approaches for new deployments and major enhancements.
• Review device configurations, routing policies, security rules, redundancy, high availability, and resiliency to improve network stability and optimization.
• Perform advanced packet, flow, route, interface, latency, bandwidth, error, and log analysis to isolate complex faults and performance bottlenecks.
• Lead network capacity planning using utilization trends, top-talker analysis, growth forecasts, and business requirements; recommend timely upgrades and enhancements.
• Ensure SLA and KPI adherence, identify service risks, and drive measurable continual service improvement, incident reduction, monitoring noise reduction, and automation opportunities.
• Govern periodic health checks for managed devices, links, routing adjacencies, clusters, controllers, licenses, capacity, backups, and configuration compliance.
• Ensure IOS and firmware versions remain aligned with the Statement of Work, approved standards, security advisories, and OEM lifecycle requirements.
• Drive proactive risk identification and mitigation for single points of failure, capacity constraints, technology obsolescence, unsupported versions, and resilience gaps.
• Coordinate proactively with OEMs and vendors for complex troubleshooting, defect analysis, RMA, patches, upgrades, advisories, and product lifecycle management.
• Lead technical coordination with L1/L2 teams, security, server, cloud, application, monitoring, service management, and other cross-functional teams.
• Mentor and technically guide L1 and L2 engineers; conduct knowledge sessions, case reviews, troubleshooting walkthroughs, and operational readiness assessments.
• Review and approve SOPs, knowledge articles, operational procedures, troubleshooting guides, network diagrams, configuration standards, and support documents.
• Work with the tools team to improve event correlation, alert logic, monitoring thresholds, service visibility, and actionable notifications.
• Support periodic inventory validation and coordinate CMDB accuracy, device ownership, configuration items, relationships, and lifecycle status with relevant teams.
• Participate with business and customer BCP/DR teams in planning and executing periodic drills; validate network failover, connectivity, and recovery outcomes and document observations.
• Provide technical inputs for service reviews, audit readiness, compliance evidence, risk reviews, capacity reviews, and stakeholder reporting.

Provide on-call support and technical leadership during critical outages, planned activities, and business-impacting events.

Job Requirements :

• 10 to 14 years of overall network infrastructure experience, including substantial hands-on experience in L3 operations, engineering, technical escalation, and complex multi-vendor environments.
• Proven experience leading major incident recovery, advanced troubleshooting, RCA, change governance, optimization, lifecycle management, and technical mentoring.
• Work location: Onsite / Offshore, with flexibility for on-call support and critical outage handling.