L3 Network Architect

SENIOR NETWORK ENGINEER – NETWORK OPERATIONS

POSITION SUMMARY

The Senior Network Engineer is a senior member of the Network Operations team responsible for maintaining the stability, performance, availability, and security of the enterprise network infrastructure supporting retail stores, distribution centers, corporate offices, cloud environments, and remote workforce connectivity.

This role provides advanced L2 and L3 operational support for critical network services and acts as a technical escalation point for complex incidents, recurring problems, and high-priority business-impacting events. The engineer will partner closely with Network Engineering, Architecture, Security, Cloud, Infrastructure, and vendor teams to drive operational excellence, improve service reliability, and support enterprise network transformation initiatives.

The ideal candidate combines strong operational experience with deep technical expertise across routing, switching, wireless, SD-WAN, security, remote access, and cloud networking platforms while demonstrating the ability to lead major incident response, mentor engineers, and continuously improve operational processes.

KEY RESPONSIBILITIES

L2 & L3 OPERATIONS SUPPORT

• Serve as a senior L2/L3 escalation point for complex network incidents and operational issues.
• Lead troubleshooting and resolution efforts for Sev-1, Sev-2, and business-critical incidents.
• Perform advanced fault isolation across WAN, LAN, WLAN, VPN, SD-WAN, Cloud, and Security technologies.
• Drive Root Cause Analysis (RCA) and corrective action planning for major incidents.
• Identify recurring issues and develop long-term solutions to improve service stability.
• Participate in on-call and major incident response rotations as required.
• Track and manage Incident, Problem, and Service Request tickets through their lifecycle.
• Ensure all operational activities meet established SLA and service objectives.

NETWORK INFRASTRUCTURE OPERATIONS

• Maintain and support enterprise network services across global locations.
• Ensure network platforms remain healthy, secure, and compliant with operational standards.
• Support lifecycle management activities including hardware refreshes, software upgrades, and platform modernization initiatives.
• Provide operational support for technology deployments and transition activities from Engineering to Operations.
• Review, validate, and implement network changes in accordance with change management processes.
• Maintain technical documentation, network diagrams, operational runbooks, and knowledge articles.
• Participate in architecture reviews and operational planning discussions.
• Drive operational excellence through process improvement and standardization initiatives.

PLATFORM EXPERIENCE

• Cisco SD-WAN (vManage, vSmart, WAN Edge)
• Cisco Meraki (LAN and WLAN)
• Palo Alto Networks Firewalls and Panorama
• Zscaler Internet Access (ZIA)
• AWS Networking Services
• Microsoft Azure Networking Services
• Aviatrix Cloud Networking
• Infoblox DHCP and DNS Services
• Enterprise Network Monitoring and Observability Platforms