Meet the team

James is the leader of Walker St Data and can also be often found leading strategic initiatives in data science and predictive modelling. With over a decade of experience across engineering, consulting, and fintech, James specialises in transforming complex data into actionable insights that drive economic outcomes. His work focuses on using machine learning to produce reliable economic estimates and enhance return on equity for businesses.

Joshua blends academic rigour with real-world execution. After beginning his career as a researcher in nonlinear optics, he moved into financial data science, spending the past four years at Shift where he helped build and lead the modelling team. His work focused on developing and embedding credit risk and classification models into core lending systems, with an emphasis on practical impact and long-term model health. Joshua brings a thoughtful, systems-oriented approach to solving complex data problems.