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Senior Quantitative Analyst, Credit Models

Australiasenior

Quantitative AnalystData & AI

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Quick Summary

Overview

Create your best future and join Westpac as a Senior Quantitative Analyst, Credit Models What’s the role? As a Senior Quantitative Analyst in Model Risk, you’ll work in an independent validation team that provides oversight, insight, and control across retail and non‑retail credit risk models.

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As a Senior Quantitative Analyst in Model Risk, you’ll work in an independent validation team that provides oversight, insight, and control across retail and non‑retail credit risk models.

You’ll perform independent model validations covering A‑IRB models (PD, LGD, EAD), scorecards, provisioning and stress testing.

Your focus will be on challenging model methodology, scope, assumptions, data, code, and documentation to ensure models meet internal standards and regulatory requirements.

You’ll produce clear, well‑reasoned validation reports and engage directly with senior stakeholders to socialise findings, provide constructive challenge, and influence outcomes.

This role offers strong exposure across the enterprise and opportunities to help influence modelling processes, tooling, and uplift initiatives.

This is a permanent full-time role based in Sydney, with flexible and hybrid working available.

Experience in credit risk modelling or independent model validation, covering IRB, provisioning, scorecards or stress testing
Strong understanding of credit risk frameworks and regulatory standards, including APRA, Basel and IFRS 9
Advanced quantitative and statistical capability, with experience applying models in practical risk settings
Strong programming experience using SAS, R, Python and/or SQL, with Excel used for analytics and reporting
Ability to produce clear, concise written validation reports and communicate complex concepts to senior stakeholders
Strong problem‑solving ability, intellectual curiosity, and confidence to provide independent challenge

(Experience with Git, Jupyter, or modern modelling toolchains is advantageous but not essential.)

What We Offer

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✓Be part of a highly respected independent validation team with enterprise‑wide impact, influencing how risk models are governed and applied across the Group

✓Special offers on banking products and discounts from top brands, including generous employee-only mortgage rates!

✓flexible work arrangements to help you achieve a greater work/life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave.

✓Tailored learning and development opportunities to help your grow your career within the bank.

✓Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives.

To get started, simply click on the APPLY or APPLY NOW button

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 more information and contact details on our FAQs and how to contact us page, under the ‘Diversity, sustainability and flexibility’ section.