Mainframe - Senior Product Owner

We are looking for an experienced Mainframe Product Owner to shape the future of one of the organisation's most critical technology platforms.

This is a rare opportunity to own the strategy, investment, roadmap, and lifecycle of a large-scale enterprise mainframe environment supporting mission-critical business services. You will balance operational excellence with modernisation, leading the platform through optimisation, transformation, and ultimately defining its future role within the broader technology landscape.

Working with senior business and technology leaders, architects, application owners, vendors, and managed service partners, you will drive decisions that improve resilience, reduce complexity, optimise cost, and deliver long-term business value.

• Defining and executing the multi-year vision, strategy, and roadmap for the Mainframe platform
• Owning platform outcomes including availability, security, resilience, performance, and cost efficiency
• Leading investment decisions, business cases, and prioritisation of modernisation initiatives
• Driving simplification, application migration, cloud transition, consolidation, and legacy transformation programs
• Managing strategic vendor and service provider relationships
• Balancing business needs, risk, technical debt, operational resilience, and commercial outcomes
• Influencing senior stakeholders across business and technology to align priorities and achieve measurable outcomes

• Significant experience leading large enterprise Mainframe platform, Infrastructure, or Technology Platform portfolios
• Strong knowledge of modern mainframe environments including z/OS, CICS, DB2, IMS, MQ, RACF, storage, and batch processing
• Experience defining product strategy, roadmaps, investment plans, and technology transformation programs
• Proven success delivering Mainframe modernisation, migration, consolidation, or decommissioning initiatives at scale.
• Strong commercial acumen with experience managing budgets, vendor contracts, software licensing, and business cases
• Exceptional stakeholder management and executive communication skills

• Own the full lifecycle of a platform that underpins critical enterprise services.
• Influence strategic technology decisions for Telstra cloud group.
• Lead a significant modernisation and simplification agenda.
• Work across large-scale transformation, resilience, cloud, and legacy exit initiatives.
• Shape the future of one of the most complex and business-critical technology ecosystems in the organisation

We know diverse teams deliver better outcomes, and we’re committed to creating an environment where everyone feels safe, respected, and supported — regardless of gender, background, or ability.

We strongly encourage women and gender-diverse people to apply and are happy to discuss flexible working arrangements or adjustments to the recruitment process.