Network Engineer (Voice & Mobility)
Parramatta - Australia
Job Summary
Employment Type
PermanentClosing Date
11 Apr 2026 11:59pmJob Title
Network Engineer (Voice & Mobility)Job Summary
Telstra is looking for a Network Engineer Voice & Mobility to join Telstras International Networks team at a pivotal moment. This role plays a critical part in strengthening and evolving the platforms that power international voice roaming mobility and IP connectivity in and out of Australia.Job Description
Based in Sydney youll work handson with Telstras international Core Voice IPX and mobility/roaming networks helping uplift resilience close capability gaps and ensure our core programs of work are sustainable for the long term. Your contribution will directly support services used by customers and partners around the world - today and into the future.
What we offer
Performance-related pay
16 weeks of parental leave for primary and secondary carers
Access to thousands of learning programs so you can level-up
Purchased annual leave scheme
Additional Telstra day off to spend as you like
Additional 30% off Telstra products and services
Toolkit provided (laptop mobile phone plan paid for)
Youll be part of a flat collaborative team that values curiosity knowledgesharing and thoughtful engineering. Youll be supported and mentored with genuine scope to deepen your expertise across voice signalling and mobility domains and grow your career in a way that works for you.
What youll do
Design build and support international Voice IPX and mobility platforms that underpin Telstras global services
Improve resilience security and reliability through performance monitoring audits and continuous improvement
Own the endtoend lifecycle of voice platforms keeping hardware and software current and fit for purpose
Deliver engineering projects across international networks balancing quality cost and timelines
Produce and review highlevel designs test plans and technical documentation coordinating testing and deployments with partners and vendors
Build scalable futureready platforms staying current in virtualisation IPX and nextgen voice technologies
About you
You dont need to tick every box were keen to hear from people who are excited by this space and keen to grow.
Sydneybased with unrestricted Australian working rights
Able to work from the Parramatta site on Mondays and Thursdays with adhoc customer site visits as required
Ideally around 48 years experience working with Voice Networks across international voice (wholesale or enterprise) IPX or mobility/roaming
Experience contributing to mediumscale engineering projects potentially as a technical lead in selected domains
Working knowledge of NGN technologies including:
Session Border Controllers
SIP Proxies
Softswitches
Signalling Gateways
Diameter Routing Agents
Centralised Routing Engines
Please apply with an up to date CV for immediate consideration.
Required Experience:
IC
About Company
Join Australia's largest mobile network, view our plans for NBN broadband internet, mobile phones, 5G & on demand streaming services.