Network Engineer -WAN - GCS

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Network Engineer (WAN) - GCS    Senior Associate / Associate    Job Summary: The Network Engineer (WAN) within Global Connectivity Solutions (GCS) supports vulnerability remediation, software lifecycle management, firmware upgrades, and production change execution across enterprise WAN infrastructure. The role performs technical implementation, validation, troubleshooting, and documentation activities involving Cisco routing and switching, Versa SD-WAN, WAN links, and related connectivity platforms. The position works with Senior Engineers, Network Engineering, Network Operations, Information Security, Change Management, Outage Management, vendors, carriers, and service providers to execute remediation and upgrade activities safely and maintain compliance with approved software and operational standards.   Job Description

Support vulnerability remediation activities across Versa SD-WAN, Cisco routing and switching, and WAN connectivity platforms. Execute approved software and firmware upgrades on Cisco ISR and ASR routers, Catalyst platforms supporting WAN connectivity, Versa SD-WAN controllers, branch edge devices, and supporting infrastructure. Review and implement assigned remediation actions arising from vendor security advisories, software recommendations, defects, and EOS/EOL notices. Support software lifecycle management and platform currency for Cisco routing and switching platforms and Versa SD-WAN infrastructure. Perform pre-upgrade validation, compatibility checks, configuration reviews, software image verification, post-upgrade validation, and health checks. Prepare and maintain implementation procedures, rollback steps, validation plans, technical assessments, change tasks, and deployment records. Participate in CAB preparation and support Senior Engineers during technical change reviews when required. Execute approved remediation activities, platform upgrades, configuration updates, and network changes within planned maintenance windows. Troubleshoot Versa SD-WAN overlays, underlay connectivity, routing protocols, enterprise routing infrastructure, and WAN link issues. Diagnose and resolve issues involving BGP, OSPF, route policies, WAN failover, VPN connectivity, QoS, traffic steering, and application forwarding policies. Support troubleshooting of ISP circuits, branch connectivity, SD-WAN fabric health, cloud connectivity, and data center interconnects. Work with vendors, carriers, service providers, and internal teams to restore service and resolve technical issues. Participate in outage calls, incident recovery, impact assessment, issue investigation, root cause analysis, and resolution validation. Support Problem Management by providing technical analysis, logs, command outputs, trends, and troubleshooting evidence. Support remediation waves, upgrade deployments, technology refreshes, and WAN modernization initiatives. Participate in testing, implementation, stabilization, and post-deployment validation activities. Maintain operational runbooks, remediation documentation, software compliance records, upgrade history, and implementation outcomes. Provide accurate progress updates and promptly escalate technical risks, blockers, failed validations, and dependencies. Identify opportunities for automation, standardization, compliance validation, monitoring, and operational improvement.

Working knowledge of Versa SD-WAN, including Versa Director and Analytics, overlays, underlay connectivity, traffic steering, and branch edge operations. Hands-on knowledge of