AI Engineer - AI Innovation Office ...

Westpac Bank; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

Westpac Bank is seeking hands-on AI Engineers to design, code, and operationalise AI applications at enterprise scale within a regulated banking environment. The role focuses on turning ideas into secure, scalable solutions while integrating AI services across platforms and teams.

You will work with the Chief AI Innovation Office and contribute to building practical AI capability across technology, data, risk and security functions.

Qualifications

• Hands-on AI engineering experience in large, regulated environments.
• Strong software engineering fundamentals across backend services and production systems.
• Practical experience deploying AI services safely in an enterprise setting.

Responsibilities

• Design, build, and ship production-ready AI applications, services, and tools.
• Integrate foundation models and ML models into secure enterprise workflows.
• Build pipelines for prompt management, model invocation, grounding, validation, and evaluation.
• Embed security, privacy, compliance, and responsible AI guardrails from design to delivery.
• Develop testing, monitoring, and feedback loops for quality, performance, and cost.
• Collaborate with product, data, risk, security, and platform teams to align priorities.

Skills

Hands-on AI engineering

Strong software engineering

LLM/AI services experience

Stakeholder collaboration

Education

Tertiary qualification in tech

Tools

Cloud platforms (AWS/Azure)

CI/CD

Vector stores / RAG

Observability

Job description

At Westpac, we’re building responsible, human-centred AI at enterprise scale — and we’re looking for hands‑on AI Engineers who can turn ideas into secure, scalable, production‑ready solutions.

You’ll join our Data, Digital & AI function and work with the Westpac Chief AI Innovation Office to build practical AI capability across technology, data, risk, security, product and business teams.

This is an engineering‑first role for people who can design, code, integrate, test and operationalise AI applications, services, agents and platforms — beyond proofs of concept.

You’ll bring strong software engineering fundamentals, practical AI/ML experience and the judgement to deliver safely in a complex, regulated enterprise environment.

Key Responsibilities –

• Design, build and ship production‑ready AI applications, services, agents and internal tools.
• Integrate foundation models, ML models, RAG, vector stores and AI services into secure enterprise workflows.
• Build pipelines for prompt management, model invocation, grounding, validation and evaluation.
• Embed security, privacy, compliance, model risk and responsible AI guardrails from design to delivery.
• Build testing, evaluation, monitoring, and feedback loops for quality, performance, safety, and cost.
• Optimise latency, reliability, and cost across AI workloads.
• Collaborate with product, data, risk, security, and platform teams to clarify requirements, surface trade‑offs, and align priorities for delivery.
• Hands‑on AI engineering experience in large, complex corporate or regulated environments.
• Ability to deal effectively with technical and non‑technical stakeholders at all levels.
• Tertiary qualifications in a relevant technology, engineering, computer science, data or related discipline, or equivalent practical experience.
• Strong software engineering background across backend services, APIs and production systems.
• Practical experience operationalising LLM, ML or AI services beyond prototypes or academic projects.
• Hands‑on knowledge of RAG, embeddings, vector databases, orchestration and model evaluation.
• Experience with cloud, CI/CD, automated testing, observability and enterprise release practices.
• Understanding of prompt design, evaluation, safety testing and responsible AI practices.
• Ability to balance experimentation speed with engineering quality and safety.
• Comfortable working with diverse stakeholders to triage requests, communicate constraints, and prioritise work based on impact and risk.

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 out more information and additional contact details by visiting the "People with Disability and/or needing Accessibility Requirements" page on our website.