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Senior Technical Specialist - Fixed Voice and IN

Singtel | Macquarie Park, Australia | Posted June 13, 2026

Position Overview

Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions.


The Senior Technical Specialist – Platform Owner (Intelligent Networks) is accountable for the end‑to‑end ownership, planning, design, performance, and lifecycle management of Intelligent Network (IN) platforms supporting Fixed Voice services.

The role owns platform health, roadmap, capacity, security and vendor governance, across the IN platforms and acts as the primary technical authority for Intelligent Networks, call routing, intelligent calling services, and platform APIs. 

Your day to day will consist of

  • Own end‑to‑end accountability for Intelligent Network platforms, including lifecycle management, roadmaps, and decommissioning strategies.

  • Lead platform evolution across technologies such as Alcatel IN, Ribbon PSX, CAS, and the Call Routing Engine (CRE), coverin...
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