The Senior Voice Engineer is responsible for the administration, support, implementation, and ongoing optimization of Cisco-based voice and Unified Communications, Cisco Webex Calling, and cloud voice collaboration solutions within a managed services environment. This role supports multiple customer environments and requires a strong technical expertise, excellent troubleshooting skills, and the ability to work effectively with clients, internal teams, and vendors. The engineer will play a key role in ensuring high availability, performance, and customer satisfaction across voice and contact center platforms.
The ideal candidate has hands-on experience with Cisco collaboration technologies, CUCM device management, Webex Calling administration, PSTN and SIP troubleshooting, contact center support, and ITIL-aligned service delivery in an SLA-driven support organization.
Essential Duties
- Design, deploy, administer, and support Cisco voice and collaboration solutions across managed services customers
- Provide operational support for Cisco Unified Communications platforms, including incident response, problem resolution, and service requests
- Support and maintain Cisco Contact Center solutions, including Webex Contact Center and Cisco UCCX
- Configure and support Cisco Unified Communications Manager (CUCM), Unity Connection, gateways, and SIP integrations
- Administer and support InformaCast for mass notification and emergency communications
- Perform proactive monitoring, capacity planning, and system health checks in a managed services model
- Troubleshoot complex voice, call routing, and QoS issues across LAN/WAN environments
- Participate in customer onboarding, migrations, upgrades, and platform lifecycle management
- Create and maintain technical documentation, standard operating procedures, and network diagrams
- Collaborate with NOC, engineering, and service delivery teams to meet SLAs and customer expectations
- Provide technical guidance and mentoring to junior engineers as needed
- Participate in on‑call rotation and after‑hours support as required by managed services commitments
Required Knowledge, Skills, and Abilities
- 5+ years of experience supporting Cisco voice and collaboration solutions
- Proven experience working in a managed services environment supporting multiple customers
- Hands‑on experience with CUCM, Webex Contact Center, Cisco UCCX, InformaCast, and CUBE
- Strong experience with Cisco CUCM, Unity Connection, SIP, and voice gateways
- Working knowledge of Webex Calling PSTN models, including cloud PSTN, Cloud Connected PSTN, Cisco Calling Plans, Local Gateway, SIP trunks, number porting, DID management, carrier routing, and emergency calling considerations.
- Solid understanding of networking fundamentals including TCP/IP, QoS, VLANs, and WAN technologies
- Strong analytical, troubleshooting skills, documentation and ability to resolve complex, multi‑layer issues
- Excellent written and verbal communication skills with both technical and non‑technical audiences
- Ability to work in an SLA-driven managed services model with strong ticket ownership, customer updates, and escalation discipline.
- Experience with Cisco Webex Calling Dedicated Instance or hybrid Cisco cloud voice deployments.
- Experience with Microsoft Teams Phone or hybrid Cisco and Microsoft collaboration environments.
- Experience supporting Cisco UC platforms on VMware or other virtualization technologies.
- Familiarity with monitoring and alerting tools such as LogicMonitor, BigPanda, Control Hub analytics, or similar platforms.
- Experience using Wireshark, packet captures, Cisco RTMT, Control Hub troubleshooting, call history, analytics, and Cisco TAC engagement for incident resolution.
- Exposure to automation or scripting such as PowerShell or Python in support or operational contexts.
- Prior experience working for a Managed Services Provider (MSP), NOC, or outsourced IT support organization.
- CCNA or equivalent Cisco voice, network or collaboration experience
- CCNP Collaboration, Webex Calling, Webex Contact Center, or cloud voice training
Benefits
NRI North America New York, New York, USA Office
810 7th Ave, New York, NY , United States, 10019
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