Cisco UC Voice Engineer

We are seeking an experienced Cisco UC Voice Engineer to support critical upgrades and modernization initiatives across our enterprise communication platforms. In this role, you will be responsible for delivering seamless upgrades to Cisco Unified Communications Manager (CUCM), Unified Contact Center Express (UCCX), and Unity Connection (CUC) , along with associated VMware ESXi infrastructure .

Key Responsibilities

• Perform upgrades of CUCM, UCCX, and CUC from version 12.5 to 15.4
• Execute VMware ESXi upgrades from versions 6.5 and 7.0 to 8.0
• Complete all pre‑upgrade activities, including:
  • Change submissions and approvals
  • Detailed implementation and rollback plans
  • Technical documentation and validation checklists
• Coordinate with global teams to plan and execute upgrade windows with minimal business impact
• Troubleshoot and resolve issues during and aft...