Lead Architect - Oceania Tax Technology - CTO Tax Office

Lead Architect - Oceania Tax Technology - CTO Tax Office

Location: Sydney

Other locations: Anywhere in Country

Date: 7 Aug 2026

Requisition ID:

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Lead Architect - Oceania Tax Technology - CTO Tax Office - EY Rank of Senior Manager or Associate Director

The opportunity

Are you ready to lead the transformation of enterprise architecture and cutting-edge technology solutions? EY Oceania Tax Technology is looking for a Lead Architect to join the Office of the CTO and help drive our vision across a dynamic portfolio.

As our Lead Architect, you will play a pivotal role in defining and governing end-to-end architecture, balancing solution and infrastructure design, and ensuring delivery excellence for EY clients. We seek a visionary leader who thrives in complex environments, is passionate about emerging technologies, and is committed to delivering long-term value. This is your chance to work at the forefront of cloud, AI, generative AI, agentic systems, and the Microsoft technology stack, influencing business strategy and delivering practical, scalable, and secure architectures.

This is a hybrid position based in Naarm - Melbourne, Meanjin - Brisbane, Warrang - Sydney.

Your key responsibilities

• Lead the development and implementation of an architecture vision and roadmap that aligns with business goals, technology strategies, and global standards.
• Architect and govern scalable cloud-based solutions, especially leveraging the Microsoft stack and Azure, while promoting modern engineering practices.
• Oversee data, AI, and emerging technologies by ensuring responsible AI practices, regulatory compliance, and the creation of self-service tools.
• Establish and manage architecture governance and quality processes, including design reviews, standards compliance, and risk escalation.
• Provide technical leadership, engage senior stakeholders, and mentor architects and engineers to ensure effective communication and successful delivery of architectural decisions.

Skills and attributes for success

• Extensive experience in senior solution architecture or software architecture roles within complex environments.
• Strong cloud architecture experience, with Azure strongly preferred.
• React &/or Angular for web front-end.
• Proven experience designing large scale, multi-tenant, fault tolerant, and highly available systems. Strong understanding of distributed systems, asynchronous architectures, and security by design.
• Experience designing and delivering AI, machine learning, or generative AI solutions.
• Excellent communication skills with the ability to influence and guide senior stakeholders.

Leadership attributes

• Strategic thinker with a strong product and value mindset.
• Comfortable operating in ambiguity and complex environments.
• Outcome focused and accountable for delivery results.
• Credible, calm, and influential with senior stakeholders.
• Collaborative leader who enables teams rather than creating bottlenecks.

What success looks like

• Clear, reusable architecture patterns adopted across the portfolio.
• Reduced delivery friction and rework through early architectural guidance.
• Improved consistency in security, quality, and non functional outcomes.
• Faster and safer adoption of AI and emerging technologies.
• Strong alignment between business priorities, technology strategy, and delivery execution.

What we can offer you

At EY, we'll fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learnmore .

• Career development:At EY, your career is yours to shape!We'll develop you with future-focused skills and equip you with world-class
• Flexible work arrangements:Our flexible work policies empower you to balance your professional and personal life, fostering a culture of trust and autonomy.
• A comprehensive benefits package: From a yearly wellness incentive, to access to additional 8 weeks of flex leave per year, and family-friendly policies, including 26 weeks of gender-neutral paid parental leave, we cater to your diverse needs to help you thrive both personally and professionally
• Salary:We offer a competitive salary which is open to negotiation depending on skills and experience.

Acknowledgement of Country

EY acknowledges the Traditional Owners and Custodians of the lands on which EY offices are located around Australia. We pay our respects to their cultures, and to their Elders - past, present, and emerging. Find out more about our vision for reconciliation

Diversity, equity, and inclusiveness (DE&I) are core to who we are, how we work and how we live our values.

We encourage applications from people of all ages, nationalities, abilities, cultures, sexual orientations, and gender identities and are committed to providing an equitable and barrier free recruitment experience for all.

We encourage you to share any support and adjustments you need to be your best and participate equitably in our recruitment process.

We understand sharing your needs with us can be daunting, so if you have questions before or during your application, we welcome you to get in touch or 3 (option 2). Anything you tell us will be kept completely confidential.

The salary range for this role is AUD 150,000 to AUD 250,000 inclusive of superannuation dependent on skills, experience and work location.

Are you ready to shape your future with confidence? Apply today.

EY Building a better working world

Our preferred applicant will be required to undertake employment screening by EY or our external third-party provider.

EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.