Stephane Motuo-Fotso is a data scientist at Square on the Capital team. He works on projects that include implementing machine learning models to mitigate loan default risk and conducting research and development to optimize business operations. He served similar roles at other tech companies such as Medium and Ubisoft where he worked on marketing and consumer analytics. That involved creating models for churn analysis and understanding behavioral patterns of consumers. He has a master’s degree in mathematics from Columbia University and a master’s degree in applied mathematics and industrial engineering from École des Mines de Nancy in France.