Senior Engineer - AI Services

Westpac; Sydney; Hybrid; AUD 180,000 - 240,000; Full time

Job summary

Westpac seeks a senior individual contributor to own complex AI workstreams from design to production. You will deliver end-to-end AI-enabled solutions across software, data, AI, integration and user experience while mentoring engineers and improving shared delivery patterns.

You will ensure safe model governance, robust deployment, and reliable operational support, with a focus on secure, scalable production systems and clear technical leadership.

Qualifications

• Own a complex workstream or major feature set from design through production and support.
• Build AI-powered full-stack solutions spanning software, data, AI, integration and UX.
• Create reliable contracts across data, services, AI components, user journeys and systems.
• Engineer safe model and agent behaviour with controls, evaluation and monitoring.
• Own versioning, deployment, rollback, recovery and incident support.
• Review designs and code; mentor engineers and surface risks early.

Responsibilities

• Own a complex workstream or major feature set from detailed design through release and production support.
• Build AI-powered full-stack solutions across software, data, AI, integration and UX.
• Create reliable contracts across data, services, AI components and user journeys.
• Engineer safe model and agent behaviour with access controls, evaluation and fallback.
• Own versioning, deployment, rollback, recovery and diagnostics.
• Review designs and code, mentor engineers and identify risks early.

Skills

Full-stack engineering

AI/ML

APIs & data flows

Security & CI/CD

Governance-by-design

Mentoring & code reviews

Tools

LLMs

Agents

Evaluation frameworks

Job description

• Sydney or Melbourne Based / Hybrid Working.
• Own complex AI workstreams from detailed design to reliable production outcomes.

Are you ready?

Join AI Services as a senior individual contributor owning complex workstreams and major feature sets.

You will turn solution direction into tested, production-ready products across software, data, AI, integration and operations, while mentoring engineers and strengthening shared delivery patterns.

Core Focus & Responsibilities

• Own a complex workstream or major feature set from detailed design through release, operation and production support.
• Build AI-powered full-stack solutions across software, data, AI, integration and user experience.
• Create reliable contracts across data, services, AI components, user journeys and enterprise systems.
• Engineer safe model and agent behaviour through access controls, approved tools, evaluation, monitoring and fallback.
• Own versioning, compatibility, deployment, rollback, recovery, diagnostics and incident support.
• Review designs and code, mentor engineers and identify material technical, delivery, data, model and operational risks early.

Key Ingredients for Success

• Strong hands-on full-stack engineering across software, data, AI, integration, testing and operations.
• Advanced design capability across APIs, events, data flows, service boundaries, identity, durable state, audit and recovery.
• Deep AI service engineering across ML, LLMs, RAG, agents, evaluation, tool controls, monitoring and fallback.
• Secure delivery expertise spanning automated testing, CI/CD, observability, resilience and production support.
• Practical governance-by-design covering traceability, evidence, privacy, human approval and control-aware delivery.
• Clear technical communication, constructive challenge, mentoring, design review and code review capability.

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.