Full-time

Senior Technical Specialist - Voice Core

Posted by Singtel • Macquarie Park, New South Wales, Australia

📍 Macquarie Park, New South Wales 🕒 February 25, 2026

About the Role

Optus is a leading Telecommunications company that is known for delivering innovative solutions to its customers, disrupting the industry, and becoming a technology company with a diverse offering of products and services.


The Service Design and Delivery (SDD) group is accountable and responsible for Development, Solution Design, Testing and Implementation for Consumer/ Enterprise products, solutions and customers in the Optus Fixed Voice, Mobile Voice and Mobile Data network. This position reports to the Senior Manager, Service Design and Delivery within the Mobile Core & Services Engineering (MCSE) business unit in Group Networks

What You’ll Do

This role in Fixed Voice domain supports key components for Carrier Interconnect, International Voice, Business Voice Products and VoNBN. You will be asked to:

  • Act as Subject Matter Expert for Fixed Voice Core including fixed voice access

  • Prime for Service and Platform Performance Optimisa...
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