Developer (Java & Python)

Are you passionate about building great software refining engineering practices and helping others do their best work Were looking for a Developer to help shape and deliver exceptional developer experiences across Westpac.

Youll join a polyglot engineering team buildingThe Westpac Mesha digital platform that enables developers to easily discover build deploy and run futureready applications. This includes creating AIenabled tooling and agentic workflows that reduce toil improve productivity and support highquality software delivery. Alongside handson engineering youll help set technical direction and mentor others in building great software.

Whats the role

• Building highquality software that delights a large internal developer community
• Designing and improving developer platforms tools libraries and build processes
• Developing AIenabled developer tooling such as search summarisation and copilots with strong evaluation observability security and guardrails
• Implementing agentic workflows to safely automate repetitive engineering tasks (with humanintheloop where required)
• Shaping the technical direction of products and mentoring junior engineers
• Identifying and helping remove technical and delivery impediments
• Contributing to and fostering a vibrant technical community

What do I need

• 3-5 years experience as a polyglot software engineer
• Strong experience buildingAPIs and microservices in Java with exposure to orPython
• Experience integratingAI capabilities into platforms including agentic patterns tool use and workflow orchestration
• Desirable to have an understanding of public cloud platforms (Azure and/or AWS)
• Familiarity with SaaS technologies such as Kafka or MongoDB (desirable)
• Practical experience applying AI/LLMs in production environments (e.g. RAG prompt/tool design model integration) including testing and responsible AI practices (desirable)
• Passion for agile engineering practices such as TDD pair programming and continuous delivery