Design, implement, and maintain Cisco Unified Communications Manager (CUCM) clusters, dial plans, and call routing.
Configure and support Cisco ISR/ASR voice routers, VG series gateways, and CUBE for SIP, PRI, and analog integrations.
Manage and optimize SIP trunking, PSTN connectivity, and voice routing policies across enterprise environments.
Deploy, configure, and support Cisco Unity Connection for voicemail and messaging solutions.
Deploy and support Cisco Webex Calling and Webex App, including hybrid and cloud integrations.
Lead number porting projects, including coordination with carriers, validation of routing, and troubleshooting of porting issues.
Perform upgrades, migrations, and patching for CUCM, Unity, and Webex platforms.
Troubleshoot complex issues across CUCM, gateways, SIP trunks, and collaboration tools.
Collaborate with network, security, and collaboration teams to ensure seamless integration of voice services.
Document system architecture, configurations, and operational procedures.
Mentor junior engineers and provide technical leadership on voice projects.
Participate in vendor discussions, proof-of-concepts, and readiness assessments for new voice solutions.

5 or more years of enterprise voice engineering experience with Cisco UC solutions.
3 or more years of experience with: CUCM (multi-cluster environments, dial plans, SRST, device pools).
Cisco ISR/ASR routers, VG gateways, and CUBE (SIP, H.323, MGCP).
Unity Connection (voicemail, integration with CUCM and Exchange).
Webex Calling and Webex App (cloud calling, hybrid deployments, user provisioning).
Number porting and carrier coordination (domestic and international).
Bachelor’s Degree in Computer Science, Information Technology, or a related field, or equivalent work experience.
CCNP Collaboration certification (preferred).
CCIE Collaboration certification (preferred).

Senior Voice Engineer

Key skills