Voice & Collaboration Engineer

About the Role

Spark New Zealand is looking for a Voice & Collaboration Engineer to work full time at a client location in Auckland. The role focuses on building, running, and improving enterprise voice and collaboration solutions, with a strong emphasis on Microsoft Teams Calling and carrier-based telephony environments.

About Spark New Zealand

Spark is New Zealand’s largest telecommunications and digital services provider, supporting millions of consumers and thousands of businesses with mobile, broadband, and digital solutions. The organisation operates in a fast-changing, agile environment designed to help teams work collaboratively and deliver better customer outcomes.

Key Responsibilities

You will take ownership of the design, deployment, support, and optimisation of voice and collaboration platforms for enterprise customers.

• Plan, implement, and support Microsoft Teams Calling solutions for enterprise environments.
• Set up and manage calling policies, user enablement, and licensing within Teams.
• Support features such as voicemail, delegates, call forwarding, call park, and shared line appearance.
• Diagnose and improve Teams Calling performance across desktop, mobile, and browser clients.
• Maintain Microsoft Teams collaboration services and the overall user experience.
• Provide technical guidance across voice, meetings, communications, and collaboration platforms.
• Deploy, configure, and support certified Session Border Controllers, including AudioCodes devices.
• Manage SIP trunks and carrier connectivity.
• Handle certificates, TLS, and mutual authentication requirements.
• Create and maintain voice routing, number normalisation, failover, and resilience designs.
• Carry out SIP message normalisation and manipulation where needed.
• Design tenant-level and user-level dial plans.
• Configure voice routing policies and PSTN usage records.
• Build and support Auto Attendants, Call Queues, business-hours routing, overflow routing, and other complex call flows.
• Support voice deployments across multiple regions and countries.
• Review and improve readiness of networks for real-time voice traffic.
• Implement and validate QoS and traffic prioritisation settings.
• Assess media paths, firewall dependencies, and connectivity needs.
• Use Call Quality Dashboard data to find and fix packet loss, jitter, and latency issues.
• Investigate and resolve voice incidents and outages.
• Perform SIP-level troubleshooting and call-flow analysis.
• Carry out root cause analysis and contribute to ongoing service improvements.
• Work with Microsoft Support, carriers, and other technology partners.
• Keep runbooks, operational notes, and knowledge articles up to date.
• Use Microsoft Teams PowerShell for bulk enablement, policy changes, number assignment, and general administration.
• Automate moves, adds, changes, and deletes, and develop scripts for reporting and auditing.

Experience and Skills Needed

The ideal candidate will have proven enterprise experience delivering and supporting Microsoft Teams Calling solutions, along with strong knowledge of Direct Routing, SBCs, SIP, and voice routing. You should be comfortable troubleshooting complex voice environments, working with technical and business stakeholders, and using PowerShell to manage operational tasks.

Technical Knowledge

Relevant experience includes Microsoft Teams Calling, Microsoft Teams collaboration services, Direct Routing, AudioCodes SBCs or similar certified platforms, SIP trunking, carrier integrations, call queues, auto attendants, dial plans, voice routing policies, QoS, network performance tuning, Call Quality Dashboard, and PowerShell automation.

Preferred Additional Experience

Experience with Splunk, SolarWinds, Ansible, and other enterprise monitoring or observability tools will be an advantage.

Why Join Spark

Spark places strong emphasis on inclusion, sustainability, and employee wellbeing. The company aims to make diversity and inclusion part of everyday practice, and it is committed to supporting Aotearoa New Zealand’s digital and economic transformation.

Benefits

• Comprehensive wellbeing support, including medical insurance, life and income protection, wellbeing coaches, EAP access, and in-house specialist clinical support through the Mahi Tahi Wellness programme.
• Hybrid working arrangements for most teams, typically 4 days in the office and 1 flexible day.
• Leave benefits including 4 weeks of annual leave, purchased leave, enhanced parental leave support, and study leave.
• Permanent employees receive $120 of Spark credit each month.
• Opportunity to participate in the Spark Share scheme when offered.
• Access to internal career development and experiential learning opportunities.

Eligibility

Because of the urgency and nature of the position, applications are limited to candidates who are based in New Zealand and hold permanent residency, citizenship, or a valid work visa with at least 18 months remaining.

Work Environment

This is a full-time onsite role based in Auckland, Auckland, New Zealand.