Senior Quantitative Analyst: Model Risk & Validation

Westpac Group; Sydney; Hybrid; AUD 110,000 - 150,000; Full time

Job summary

Westpac Group in Sydney is seeking a qualified risk model professional to join the Model Risk team, focusing on independent validation of enterprise models across capital, AML, liquidity and conduct risk.

You will collaborate with stakeholders across the bank to review methodologies, assess performance and strengthen model risk practices, with flexible hybrid working and a path to deepen expertise in AI/ML-driven modelling.

Qualifications

• Experience with quantitative or mathematical models.
• Strong programming capabilities in Python, R, SQL or SAS.
• Excellent ability to communicate complex findings clearly.
• Strong stakeholder engagement and relationship skills.
• Background in statistics, mathematics, engineering, finance or econometrics.

Responsibilities

• Perform independent validation of enterprise models used across capital, financial crime, funding and liquidity risk.
• Review methodologies, assess model performance, and challenge assumptions.
• Collaborate with stakeholders to strengthen model risk management practices.
• Build expertise in model validation and contribute to meaningful risk outcomes.

Skills

Python

R

SQL

SAS

Stakeholder engagement

Communication

Statistics/Econometrics background

Education

Quantitative discipline background

Job description

Westpac Group in Sydney is seeking a qualified risk model professional to join the Model Risk team, focusing on independent validation of enterprise models across capital, AML, liquidity and conduct risk.

You will collaborate with stakeholders across the bank to review methodologies, assess performance and strengthen model risk practices, with flexible hybrid working and a path to deepen expertise in AI/ML-driven modelling.