Owns the technical delivery and ongoing support of key customer accounts across AV, unified communications, video conferencing, and cloud collaboration platforms. Leads deployments, upgrades, troubleshooting, escalations, root-cause analysis, documentation, operational readiness, and service transitions. Partners with Sales, Customer Success, Program Management, Service Delivery, vendors, and customer engineering teams. Serves as a senior technical advisor, subject matter expert, and cross-functional leader while driving process improvements and platform administration.