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

The Technical Specialist - Mobile Voice Core is a senior hands-on technical role responsible for the end-to-end network design and delivery of mobile voice core solutions. Acting as a technical prime for assigned initiatives, this role owns network design activities from initial scoping through to implementation in the production environment.

This role may require participation in change windows outside of standard business hours.

Your day to day will consist of

• Act as the technical lead for projects, overseeing end‑to‑end network design from scoping and high‑level design through to implementation and handover.
• Develop, review, and approve detailed network design documentation, ensuring alignment with standards and target architectures.
• Assess exi...