Senior Engineer - Java API - (Mob Way Applicants must identify as Aboriginal and / or Torres Strait Islander)

Create your best future and join Westpac as a Java API Senior Engineer 

What’s Mob Way? 

This role is part of our Mob Way program, a culturally grounded pathway unlocking senior opportunities for Aboriginal and Torres Strait Islander leaders.

Through Mob Way, you will be supported to grow your career while staying connected to culture. This includes strong executive connection, opportunities to build your networks, and dedicated time for in‑community experiences and elder‑led cultural immersion.

What’s the role?

This role sits within the Customer & Engineering unit, delivering customer servicing, credit assessment, and product originations technology via online and staff‑facing channels. In addition to maintaining group‑critical applications, you will help drive the adoption of AI‑driven, agentic development across Java APIs and Python services—automating coding, testing, documentation, and change delivery while meeting the bank’s regulatory and security obligations. 

Key Responsibilities

• Design and implement RESTful APIs in Java (Spring), using clean architecture and robust design patterns.
• Build Python services and developer tooling for AI‑assisted and agentic workflows (code/test/doc generation, CI/CD integration).
• Design, build, and operate IDMC pipelines (Cloud Data Integration & Application Integration) for customer master, data integration, and event‑driven interfaces.
• Engineer for non‑functional excellence across reliability, security, performance, observability, and operability.
• Collaborate effectively with engineers and stakeholders in complex project environments.
• Adhere to Westpac standards and processes to meet regulatory obligations.
• Apply an AI‑first approach to automate coding, testing, data mappings, orchestration, and documentation; orchestrate multi‑agent workflows with guardrails, policy checks, and evaluation metrics (e.g., code quality, test coverage, traceability).

 What do I need?

• Strong results in programming and application design.
• Deep experience in designing, developing, and implementing RESTful APIs.
• Expert-level proficiency in Java.  
• Proficiency with Git and Bitbucket.
• Experience with Spring and Jersey frameworks.
• Experience with AI agentic development. 
• Experience with Python, Informatica, Siebel or Cobol is highly desirable.
• Computer Science (or closely related degree) with a major in software engineering or equivalent.

Why join us?

As part of Mob Way, you will receive tailored career support through executive coaching, culturally safe leadership development, and opportunities to strengthen your connection to community and culture.

At Westpac, we’re passionate about becoming our customers’ #1 banking partner for life and we know that starts with creating the best workplace in the country. For Aboriginal and Torres Strait Islander peoples, that means more than just a job. 

• Special offers on banking products and discounts from top brands, including generous employee-only mortgage rates!
• We offer flexible work arrangements to support your work/life balance, along with a variety of leave options including Culture (such as dedicated Sorry Business Leave), Lifestyle, and Wellbeing Leave.
• Tailored career support through our Indigenous Careers Team, and growth opportunities like the Echo mentoring program and Jawun secondments. 
• Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives including our Brothers & Sisters Employee Advocacy Group. 

Create your future today

To get started, simply click on the APPLY NOW button

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Create your future today through a role supported by our Mob Way program and a workplace committed to supporting your career.

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.

At Westpac we aim to help Aboriginal and Torres Strait Islander Australians succeed by supporting Indigenous employees to build meaningful careers.   Westpac has been granted an S126 Exemption to sections eight (8) and fifty-one (51) of the Anti-Discrimination Act 1977 (NSW); this allows us to advertise and recruit this role exclusively to Aboriginal and Torres Strait Islander applicants.

This forms part of Westpac’s strategy to foster a multicultural, vibrant and diverse workforce.