Westpac

Lead AI Engineer - Intelligence & Protection

Westpac
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4 days ago
Sydney, AustraliaStaff+

Responsibilities

  • Lead a Financial Crime Protection intelligence solution from intent through design, build, verification, release, and operation.
  • Translate fraud, AML, investigation, intelligence, and protection requirements into safe production engineering outcomes.
  • Set boundaries between signals, investigations, human decisions, and actions in downstream systems.
  • Create traceable contracts across source data, events, entities, facts, signals, models, agents, reviews, and downstream systems.
  • Build and guide backend services, APIs, data stores, modern web applications, AI services, and accessible human review workflows.
  • Enforce bounded agent tools, access controls, least privilege, data minimisation, pseudonymisation, and controlled disclosure.
  • Lead versioned and reversible releases for data contracts, models, embeddings, APIs, and workflows, including rollback and recovery.
  • Mentor engineers and turn specialist delivery lessons into reusable patterns.

Requirements

  • Deep Financial Crime Protection domain-SME experience with practical knowledge of fraud, AML, investigations, intelligence workflows, controls, and human decision-making in complex regulated environments.
  • Expert full-stack engineering experience across backend services, APIs, data stores, and modern web applications.
  • Experience with Go or Python, SQL, TypeScript, React, and Next.js.
  • Strong API, event, dataflow, and service-boundary design experience, including identity, entitlements, state, audit, and recovery.
  • Strong data, graph, and investigation engineering knowledge covering lineage, time, quality, entity resolution, bounded traversal, and purpose-based access.
  • Strong AI service engineering experience with ML signals, LLMs, RAG, agents, prompt and model evaluation, tool controls, versioning, monitoring, and fallback.
  • Experience designing accessible human review systems with evidence, provenance, uncertainty, approval, disposition, and recovery.
  • Sound judgement in selecting rules, SQL, conventional ML, graphs, or generative AI for simple and safe solutions.
  • Ability to apply engineering, security, privacy, Responsible AI, risk, and operational resilience requirements.

Benefits

  • Sydney or Melbourne based with hybrid working.
  • Supportive and inclusive community with additional support for veterans, Indigenous Australians, and neurodiverse people.
  • Recruitment adjustments and accessibility support are available for applicants who need them.
Westpac

About Westpac

10,000+ employees

Westpac is an Australian banking group that provides retail, business, and institutional banking, payments, and wealth/insurance services to consumers and enterprises. Founded in 1817 and headquartered in Sydney, it operates across Australia and New Zealand under brands including Westpac, St.George, BankSA, Bank of Melbourne, BT Financial Group, and RAMS. Its business model centers on deposit-taking, lending, and financial services fees delivered via branches, digital channels, and partner networks.

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