Senior AI Scientist — AI-Enabled Credit Lifecycle (Hybrid)

Westpac; Sydney; Hybrid; AUD 150,000 - 210,000; Full time

Job summary

Westpac in Sydney seeks a Senior AI Scientist to shape an AI-enabled credit lifecycle within the Business & Wealth team. You will deliver complex AI use cases across origination, assessment, servicing and ongoing credit monitoring in a hybrid Sydney-based role.

You will translate priorities into tangible AI solutions, develop document-intelligence capabilities, and ensure traceability, explainability and governance throughout model development and deployment.

Qualifications

• Strong applied Data Science experience in predictive modelling, financial analytics, credit, lending or adjacent decision-intensive domains.
• Hands-on NLP or document-intelligence experience, such as extraction, classification, summarisation or evidence linking across complex documents.
• Deep Practical GenAI or Agentic-workflow delivery with human review, traceability, escalation and clearly controlled actions.
• Strong model-evaluation judgement across accuracy, completeness, explainability, stability and production behaviour.
• Advanced Python and SQL capability and experience partnering on production integration, testing and monitoring.
• Sound understanding of Model Risk, Responsible AI, privacy, security and independent validation in a governed environment.
• The ability to work across programs, Credit Risk, business, Technology and operations teams and mentor other practitioners.

Responsibilities

• Translate program priorities into deliverable AI use cases with agreed users, benefits, controls and acceptance criteria.
• Develop document-intelligence and analytical solutions that support financial assessment and credit preparation.
• Build AI-assisted workflows for credit review, servicing and monitoring, aligned with approved program priorities.
• Evaluate model performance, extracted information and generated outputs for accuracy, completeness and explainability.
• Design human review, traceable evidence and clear escalation paths while preserving credit-policy, approval and risk-acceptance accountabilities.
• Apply Model Risk, Responsible AI, privacy and security controls and support independent validation and required approvals.
• Partner with engineering and credit users on integration, testing and controlled release into operational workflows.
• Monitor adoption, quality and credit-process outcomes, addressing drift, errors and unintended customer impacts.
• Maintain review-ready documentation, share reusable patterns, mentor practitioners and escalat material program dependencies.

Skills

Applied Data Science

Predictive Modelling

NLP / Document Intelligence

GenAI / Agentic-workflow

Model Evaluation

Python

SQL

Model Risk / Responsible AI

Cross-program Collaboration

Job description

Westpac in Sydney seeks a Senior AI Scientist to shape an AI-enabled credit lifecycle within the Business & Wealth team. You will deliver complex AI use cases across origination, assessment, servicing and ongoing credit monitoring in a hybrid Sydney-based role.

You will translate priorities into tangible AI solutions, develop document-intelligence capabilities, and ensure traceability, explainability and governance throughout model development and deployment.