Key Responsibilities
Design, build, and support cloud ‐ native, event ‐ driven data platforms and APIs
Develop and operate scalable data pipelines and storage solutions on AWS
Build high ‐ quality, secure, and maintainable code with strong performance and reliability
Optimise data pipelines, queries, and algorithms for scalability and cost efficiency
Produce and review technical designs, documentation, and operational runbooks
Engineer AI/ML ‐ ready datasets with strong data quality, lineage, and governance
Enable MLOps practices such as reproducible pipelines, data versioning, and monitoring
Apply responsible AI, privacy, and data governance controls in regulated environments
Collaborate with delivery, product, architecture, security, and platform teams
Participate in code reviews, uplift engineering standards, and mentor others
Contribute to the strategic evolution of the data platform and engineering practices
What Do I Need?
Technical Skills & Experience
Strong hands ‐ on experience with PySpark and Java
Extensive experience on AWS, including AWS Glue and DynamoDB
Experience building event ‐ driven architectures (Kafka) and RESTful APIs
Strong knowledge of data modelling, distributed data processing, and data quality
Experience supporting ML/AI data lifecycles, including feature engineering and RAG concepts
Solid understanding of CI/CD, DevOps practices, and SDLC principles
Domain Experience
Proven experience delivering data solutions in banking, financial services, or regulated environments
Strong understanding of data governance, privacy, resilience, and regulatory expectations




Awareness of Responsible AI, model risk, and auditability requirements
Ways of Working
Collaborative team player who can influence without ego
Comfortable challenging assumptions to improve outcomes
Robust communicator able to explain complex concepts to technical and business stakeholders
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 your 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
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 more information and contact details on our FAQs and how to contact us page , under the 'Diversity, sustainability and flexibility' section.
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📌 Senior Engineer (Sydney)
🏢 Westpac Group
📍 Sydney