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Voice Lead Engineer

Synapse Business SystemsArlington, VA🇺🇸United StatesPosted 11 Jul 2026

Quick Overview

Work Type
On Site
Level
Mid Senior

Job Description

Job Title: Voice Lead Engineer
Workplace: 100 % Onsite
Work Location: Arlington, VA
 
Summary:
We are seeking a Voice Lead Engineer to lead the migration of the company’s phone system from Avaya (on-premise) to Microsoft Teams Voice. This person should have strong experience with large-scale enterprise telephony migrations, voice network design, and unified communication (UC) systems that combine legacy and modern platforms.
 
Responsibilities:
  • Lead and manage the migration of the existing Avaya phone system to Microsoft Teams Voice.
  • Review and document the current voice environment, including call routing, dial plans, and SIP connections.
  • Design and deploy Teams Voice solutions for enterprise users.
  • Configure and support Session Border Controllers (SBCs), especially Oracle Communications SBC, to ensure secure voice connectivity.
  • Support integration with call recording platforms such as NICE.
  • Create migration plans, including cutover steps, risk mitigation, and rollback procedures.
  • Troubleshoot voice-related issues such as call failures, SIP signaling problems, and call quality issues.
  • Provide post-migration support to stabilize and optimize the Teams Voice environment.
 
Qualifications:
  • 5+ years of experience in telecom, enterprise voice engineering, or unified communications architecture.
  • Strong hands-on expertise with Avaya platforms such as Aura, Communication Manager, and Session Manager.
  • Experience deploying and supporting Microsoft Teams Voice in large enterprise environments.
  • Solid understanding of SIP (Session Initiation Protocol), VoIP (Voice over IP), and hybrid voice systems.
  • Experience working with Oracle SBCs or similar enterprise SBC solutions.
  • Experience integrating telephony systems with CRM tools and call recording platforms.
  • Avaya and/or Microsoft Teams Voice certifications are a plus.

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