Senior Credit Risk Modeller – Impactful Modelling & Governance

Westpac New Zealand; Auckland; On-site; NZD 110,000 - 180,000; Full time

Benefits offered by this job

4 weeks holiday + 5 wellbeing days

Additional leave options up to 4 weeks

Banking benefits, insurance discounts

Career growth programmes

Parental leave top up

School holiday subsidy

Volunteer days

Job summary

Westpac New Zealand is seeking a Senior Modeller to join the Quantitative Risk Management team in Auckland. The role focuses on developing PD, EAD and LGD credit risk models, monitoring performance and supporting governance across regulatory reviews.

You will collaborate with cross-functional teams to raise modelling capability, improve analytics practices and deliver high-quality outcomes in a fast-paced banking environment.

Qualifications

• Tertiary qualification in Statistics, Mathematics or related field.
• Proficiency in analytical programming languages (SAS, SQL, R or Python).
• Strong analytical and problem-solving skills.
• Ability to write clear technical documentation and communicate findings to senior stakeholders.
• Attention to detail and ability to constructively challenge.

Responsibilities

• Develop and enhance PD, EAD and LGD credit risk models.
• Monitor model performance and develop supporting tools.
• Support stress testing, scenario analysis, benchmarking and model reviews.
• Contribute to model governance, validation and regulatory reviews.
• Share expertise and help grow modelling capability across QRM.
• Improve practices across analytics, coding, documentation and data visualisation.
• Challenge existing processes to improve efficiency, accuracy and quality.
• Collaborate with stakeholders to keep projects moving and deliver quality outcomes.

Skills

SAS

SQL

R

Python

Statistical analysis

Education

Statistics/Mathematics degree

Job description

Westpac New Zealand is seeking a Senior Modeller to join the Quantitative Risk Management team in Auckland. The role focuses on developing PD, EAD and LGD credit risk models, monitoring performance and supporting governance across regulatory reviews.

You will collaborate with cross-functional teams to raise modelling capability, improve analytics practices and deliver high-quality outcomes in a fast-paced banking environment.