Senior Quantitative Analyst / Manager, Markets Model Validation

Westpac Group; Sydney; On-site; AUD 180,000 - 260,000; Full time

Benefits offered by this job

Special banking offers

Flexible work arrangements

Learning & development

Volunteer opportunities

Job summary

Westpac Group is seeking a senior quantitative modeller to independently assess and validate valuation and risk models used across Financial Markets, Risk and Treasury. You will work on models from derivative pricing to regulatory capital within a high-stakes governance framework, contributing to strategic risk management and ongoing model enhancements.

The role offers exposure to diverse products and senior stakeholder interaction, with opportunities for career progression as the team expands.

Qualifications

• Extensive experience in a financial markets quantitative environment.
• Expertise in derivative valuation and risk models.
• Knowledge of IRRBB and APS/CPS standards.
• Strong analytical and problem-solving skills.
• Excellent communication and stakeholder influencing ability.

Responsibilities

• Independently assess and validate complex valuation and risk models across Markets, Risk and Treasury.
• Support a broad range of products and regulatory requirements.
• Contribute to model governance and risk management across the Group.
• Collaborate with stakeholders and senior leadership to shape model risk practices.

Skills

C++

R

Quantitative analysis

Communication

Tools

Murex

Calypso

QRM

Real Time Credit Engine

Job description

Sydney, NSW, Australia and 2 more

Job Description

What’s the role?

You'll play a key role in independently assessing and validating models used across Financial Markets, Risk and Treasury. From derivative valuation and market risk models through to regulatory capital and treasury models, you'll help ensure strong model governance and sound risk management across the business.
It's an exciting time to join the team. With continued investment in the Model Risk function and a growing focus on supporting increasingly sophisticated products, models and regulatory requirements, you'll have the opportunity to work on some of the bank's most strategic and complex model risk challenges while building deep expertise across markets, treasury and risk disciplines. This growth also creates opportunities for career development and progression as the team continues to expand.
This is a full-time permanent opportunity based in Sydney, Melbourne, Brisbane or Adelaide.
You'll work closely with stakeholders across Markets, Risk and Treasury, contribute to high-profile initiatives, and help shape model risk practices across the Group. The role offers exposure to a broad range of financial products, the opportunity to influence decisions at senior levels, and the chance to play a key role in the future growth and success of the team.

What do I need?

• Strong experience working in a financial markets quantitative environment, with expertise in derivative valuation and risk models across a range of products, including linear and nonlinear derivatives.
• Knowledge of IRRBB models and a sound understanding of relevant regulatory standards, including APS111, APS116, APS117, CPS226 and APS180.
• Ability to independently assess, challenge and validate complex valuation and risk models, applying strong analytical and problem solving skills.
• Excellent communication skills with the ability to explain complex quantitative concepts clearly and influence stakeholders at all levels.
• Programming capability in C++, R or a similar language. Experience with version control tools and market risk platforms such as Murex, Calypso, Real Time Credit Engine or QRM will be highly regarded.

We’re obsessed with becoming our customers #1 banking partner for life and we’re looking for people who are passionate about helping us achieve that goal. In return we’re committed to making Westpac the best place to work in the country. Here are just a few of the ways we’re already doing that:

• 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.

Create your future today

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.

We may close this job advertisement earlier than the advertised closing date if suitable candidates are identified. We encourage you to apply as soon as possible.

Job Info

• Job Identification 71511
• Job Category Data
• Posting Date 09/17/2026, 05:23 AM
• Apply Before 10/01/2026, 05:23 AM
• Job Schedule Full time
• Locations Sydney, NSW, Australia Melbourne, VIC, Australia Brisbane City, QLD, Australia