Lead Credit Model Validation & Risk Strategy

NAB; Adelaide; On-site; AUD 140,000 - 180,000; Full time

Job summary

NAB is seeking an Associate Director to join the Risk Frameworks, Execution and Models Team in leading independent validation of IRB, IFRS9, and credit decisioning models across the portfolio. You will assess data quality, calibration, and performance under varied economic conditions, while challenging outcomes that diverge from risk appetite.

You will partner with model owners, ensure findings drive capital and RWA decisions, and act as a technical authority on validation matters.

Qualifications

• Experience in banking/financial services, model development/validation, credit risk, and/or governance.
• Strong statistical and economic modelling skills with coding languages essential (Python, SAS).
• Strong engagement and influencing skills with the ability to work closely with multiple stakeholders, to convey complex ideas clearly and deliver outcomes
• Understanding of how models affect credit decisions, capital, provisioning, stress testing and scenario analysis.
• Strong written communication skills with the ability to write detailed validation reports to outline findings and model rating outcomes backed by analytical evidence
• Openness and thought leadership to adopt AI tools for credit validation.
• Excellent strategic thinking, resilience, autonomy, and a customer focused mindset are essential for this role.

Responsibilities

• Lead independent validation of IRB, IFRS9 and credit decisioning models.
• Assessing conceptual soundness of rating philosophies, data quality, calibration and performance testing across economic conditions incorporating state of the cycle assessments.
• Oversee validation of model performance through the credit life cycle, including portfolio and segment level outcomes, interaction with RWA overlays, expert judgement and management adjustments.
• Provide credible challenge where outcomes diverge from expectations and risk appetite.
• Ensure validation conclusions are reflected in capital usage and RWA outcomes, credit decisioning frameworks, limitations, overlays and monitoring requirements.
• Partner with model owners to ensure findings are remediated appropriately.
• Act as line 2 technical authority on credit model validation matters.
• Support regulatory reviews, deep dives and supervisory engagement relating to IRB models.

Skills

Statistical modelling

Economic modelling

Python

SAS

Stakeholder engagement

Communication

Job description

NAB is seeking an Associate Director to join the Risk Frameworks, Execution and Models Team in leading independent validation of IRB, IFRS9, and credit decisioning models across the portfolio. You will assess data quality, calibration, and performance under varied economic conditions, while challenging outcomes that diverge from risk appetite.

You will partner with model owners, ensure findings drive capital and RWA decisions, and act as a technical authority on validation matters.