We are seeking an experienced Senior IP Telephony Engineer to design, implement, maintain, and troubleshoot modern unified communications and telephony platforms across on-premises and cloud environments. This role requires deep expertise in Zoom Phone / Zoom Contact Center, Cisco Voice Gateways, and SIP-based VoIP solutions, along with strong skills in MDM administration (JAMF, Microsoft Intune) for endpoint security and compliance.
Key Responsibilities
Unified Communications & Telephony Design
* Architect and deploy VoIP and Unified Communication solutions, including:
* Zoom Phone / Zoom Contact Center
* Cisco On-Prem IP PBX and SBC Platforms
* Design and optimize:
* Call flows, auto-attendants, hunt groups, queues, voicemail, IVR, and contact center routing.
* Collaborate with network teams to ensure:
* Bandwidth planning
* End-to-end voice quality assurance.
Operations, Support & Troubleshooting
* Act as the primary escalation point for complex telephony and UC incidents.
* Monitor and maintain:
* SIP trunks, SBCs, and carrier interconnects.
* Zoom voice workloads (devices, policies, dial plans).
* Cisco IP PBX instances and voice gateways.
* Perform advanced troubleshooting using:
* SIP traces, logs, and monitoring tools.
* Execute MACD (Moves, Adds, Changes, Deletes) for users, numbers, call flows, and devices.
* Work directly with customers and internal stakeholders to:
* Gather requirements and translate them into technical designs and implementation plans.
* Recommend best practices for Zoom and overall UC strategy.
* Coordinate with carriers and vendors for:
* Incident resolution.
Documentation & Governance
* Create and maintain:
* High-Level Designs (HLDs)
* Low-Level Configurations (LLDs)
* Operational runbooks.
* Maintain accurate inventory of:
* Numbers
* Licenses
* Services.
* Administer JAMF for macOS device management and security compliance.
* Manage Microsoft Intune for Windows, macOS, iOS, and Android devices.
* Deploy software and patches across enterprise endpoints.
* Troubleshoot complex issues related to:
* Windows Group Policy
* Security patches.
* Ensure compliance and vulnerability remediation across global endpoints.
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