Thinktank Welcomes Nathan McMullen as General Manager Credit Risk


Thinktank is delighted to announce the executive appointment of Nathan McMullen as the new General Manager Credit Risk, reporting directly to Jonathan Street, CEO.

Nathan brings over 25 years of deep experience in retail banking, with a proven track record of transforming businesses through leadership across roles in Product, Digital Transformation, and Risk. His expertise spans local and international appointments, covering both domestic and global firms, public and private ownership, and small and large financial institutions.

Nathan joins Thinktank from Great Southern Bank, where he served as the Product Lead for Home Lending, overseeing the bank’s mortgages portfolio. Prior to this, he held the position of Head of Product and Growth, Mortgages at ING, where he led the core mortgages product team with a focus on acquisition performance, financial oversight, credit risk appetite and decision automation.

Before his time at Great Southern Bank and ING, Nathan spent 14 years within the Westpac Group, holding various leadership roles. As the Head of Portfolio and Servicing, Mortgages, Nathan led mission critical teams overseeing Product Management, Pricing, Portfolio Management, Remediation, Servicing, and Simplification for Westpac Group Mortgage Portfolios.

Nathan’s dedication to innovation and strategic leadership further unfolded in his roles as Head of Home Ownership for Regional and Retail Brands and Head of Product and Digital for RAMS, where he demonstrated a consistent commitment to delivering business growth while balancing risk management, and the pursuit of exceptional customer experiences.

Jonathan Street, CEO of Thinktank, expressed his enthusiasm about Nathan joining the leadership team, stating, “Nathan’s wealth of experience and proven leadership skills make him an invaluable addition to our team. We are confident that his strategic insights and expertise will contribute significantly to our objectives to drive innovation and excellence across the realms of product, policy, broker experience and the management of credit risk.”

Nathan McMullen’s appointment is effective immediately, and Thinktank looks forward to the significant positive impact he will undoubtedly bring to the organisation.

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