Senior AI Engineer - Chief AI Innovation Office (Multiple Roles)

  * Sydney Location / Hybrid Working.  * Multiple roles being hired at Senior AI Engineer level. * Work with some of the brightest minds in the AI space.  What is the opportunity? At Westpac, we’re building the future of banking through responsible, human‑centred AI. As we continue to grow our inhouse AI capabilities, we are looking to hire multiple engaging, passionate and technically proficient Senior AI Engineers to complement our Westpac Chief AI Innovation Office.  Importantly, you be joining the Data, Digital & AI (DDAI) function that defines and executes the data, digital, and AI strategy—partnering with business leaders to unlock value through advanced analytics, responsible AI, and modern digital platforms.  Key responsibilities * Lead the end-to-end design and delivery of complex AI platforms, services, and products. * Define architecture patterns for AI systems including orchestration, evaluation, observability, and governance. * Drive production hardening of AI capabilities, including resilience, fallback strategies, and incident response. * Establish and evolve standards for prompt management, evaluation, monitoring, security, and compliance. * Make informed trade-offs between model quality, latency, risk, and cost, and align stakeholders on prioritisation and sequencing decisions. * Mentor and guide AI Engineers, reviewing designs and code and uplifting capability. * Partner with platform, risk, security, data, and product leaders to scale AI safely and sustainably. * Translate experimental AI approaches into reusable, production-grade patterns. * Lead technical investigations and root-cause analysis for AI system issues, driving durable systemic fixes and prevention. Essential Skills & Experience * Deep experience in software engineering and distributed systems. * Proven track record delivering AI systems into enterprise production. * Strong expertise in LLM architectures, RAG, agents, evaluation frameworks, and model lifecycle management. * Experience designing guardrails for responsible AI, privacy, and regulatory compliance. * Ability to influence technical direction and engineering standards across teams. * Strong communication skills with both technical and non-technical stakeholders, including influencing decisions and prioritisation. Below is a checklist that represents your achievements as a Senior AI Engineering SME -  * AI platforms scale reliably across multiple products and teams. * Clear AI engineering standards and patterns are adopted across teams. * AI risks are proactively managed through design, not retrofitted. * Junior engineers grow faster through guidance and example…in particular your SME in these areas.  * Systems, agents, and operating practices mature continuously (reliability, safety, evaluation coverage) as teams learn and iterate. * AI systems meet enterprise expectations for quality, safety, and resilience.  Why join us?                      We’re obsessed with becoming our customers' #1 banking partner for life and we’re looking for people who are passionate about helping us achieve that goal. In return, we’re committed to making Westpac the best place to work in the country.  Here are just a few of the ways we’re already doing that:  * Special offers on banking products and discounts from top brands, including generous employee-only mortgage rates!  * Flexible work arrangements to help you achieve a greater work/life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave.  * Tailored learning and development opportunities to help grow your career within the bank.  * Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives.  Create your future today!  To get started, simply click on the APPLY or APPLY NOW button.  We’re all about creating a supportive and inclusive community. We welcome everyone – no matter your age, gender, background, or abilities. We also provide additional support to welcome our veterans, Indigenous Australians and neurodiverse community.  If you need any adjustments during the recruitment process, you can find out more information and additional contact details by visiting the "People with Disability and/or needing Accessibility Requirements" page on our website [https://www.westpac.com.au/about-westpac/inclusion-and-diversity/Inclusion-means-everyone-matters/disability-and-accessibility/].