Senior AI Engineer - Build Production-Grade AI at Scale

Westpac; Sydney; Hybrid; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Flexible work arrangements

Learning and development opportunities

Volunteer opportunities

Mortgage rate benefits

Job summary

Westpac is accelerating the future of banking with responsible, human-centred AI. We are looking for a Senior AI Engineer who can turn bold ideas into secure, scalable solutions and help deliver enterprise-grade AI capabilities.

You will join the Chief AI Innovation Office within our Data, Digital & AI (DDAI) function — a team shaping how advanced analytics, digital platforms and AI are engineered, governed and scaled across a large enterprise.

Qualifications

• Hands-on AI engineering experience in complex, fast-moving corporate environments.
• Production delivery of AI/ML/LLM systems deployed and governed at scale.
• Strong software foundations including Python, APIs, cloud services and distributed systems.
• Deep practical experience with LLMs, RAG, embeddings, agents, evaluation and orchestration.
• Experience building guardrails around safety, privacy, compliance, explainability and reliability.
• Ability to influence technical direction and engineering standards.
• Clear, confident communication with engineers, product teams and stakeholders.

Responsibilities

• Design, build and ship AI platforms, services, and products at enterprise scale.
• Engineer robust LLM, RAG, agentic and orchestration solutions with strong reliability and governance.
• Move AI capabilities from experiments to production with testing, deployment and monitoring.
• Set and lift standards for prompt management, model evaluation, security and responsible AI guardrails.
• Balance model quality, latency, cost and risk in dynamic delivery environments.
• Collaborate with product, platform, data, risk, security and business partners to scale AI safely.
• Review designs and code, mentor engineers and create reusable production patterns.
• Lead investigations and durable fixes for AI system issues.

Skills

Hands-on AI engineering

Python

APIs

Cloud services

Distributed systems

CI/CD

LLMs

RAG

Embeddings

Agents

Evaluation frameworks

Orchestration

Model lifecycle management

Monitoring

Responsible AI guardrails

Tools

Python

APIs

CI/CD pipelines

Cloud platforms

Job description

Westpac is accelerating the future of banking with responsible, human-centred AI. We are looking for a Senior AI Engineer who can turn bold ideas into secure, scalable solutions and help deliver enterprise-grade AI capabilities.

You will join the Chief AI Innovation Office within our Data, Digital & AI (DDAI) function — a team shaping how advanced analytics, digital platforms and AI are engineered, governed and scaled across a large enterprise.