Voice Engineer (Microsoft Teams Voice | Cisco | Ribbon SBC | PowerShell) - Contract

Voice Engineer (Microsoft Teams Voice | Cisco | Ribbon SBC | PowerShell) - Contract

Location: Chester (Hybrid - 3 days per week onsite)

We are recruiting for an experienced Voice Engineer to join a large-scale enterprise environment, supporting and maintaining a global voice infrastructure with a strong focus on Microsoft Teams Voice and enterprise telephony.

This is an excellent opportunity for an engineer with a background in Microsoft Teams Phone, Cisco Voice and SIP/VoIP technologies who enjoys working in a fast-paced production environment, troubleshooting complex voice issues and collaborating with global support teams.

Responsibilities

• Provide operational support for Microsoft Teams Voice and enterprise telephony platforms.

• Troubleshoot and resolve complex voice, SIP and interoperability issues across Cisco and Microsoft Teams environments.

• Support core voice services including Session Border Controllers (SBCs), carrier connectivity and enterprise telephony.

• Investigate and resolve incidents, working closely with infrastructure, network and carrier support teams.

• Participate in change management, problem management and major incident activities.

• Monitor service performance and proactively identify opportunities for service improvement.

• Engage with Microsoft support where required, managing escalations through to resolution.

• Produce clear technical documentation and communicate effectively with technical and business stakeholders.

Essential Skills & Experience

• 5+ years' experience supporting enterprise Voice or Unified Communications environments.

• Strong experience with Microsoft Teams Voice/Teams Phone.

• Experience supporting Cisco Voice/CUCM environments.

• Knowledge of Ribbon SBC or other Session Border Controllers.

• Experience with Direct Routing and enterprise telephony.

• Strong understanding of SIP, VoIP and carrier connectivity.

• Experience with Microsoft 365 Admin Centre, Teams Admin Centre and Microsoft Entra.

• Experience with Call Analytics, Call Quality Dashboard (CQD) and Quality of Experience reporting.

• PowerShell Scripting and Microsoft Graph API experience.

• Experience using ServiceNow and/or Remedy.

• Strong incident, problem and change management experience within a production environment.

Desirable

• Microsoft 365 Certified: Teams Administrator Associate.

• Experience with Splunk and ThousandEyes.

• Experience supporting Contact Centre technologies.

• Previous experience within a large enterprise or financial services environment.

This contract offers the opportunity to work within a highly available global voice infrastructure, supporting business-critical collaboration platforms and driving operational excellence across enterprise voice services.