Stephen

Stephen Ma is a Staff ML/Research Scientist at Opendoor, specializing in neural networks for home valuation since May 2022. Prior to this, Stephen held the position of Data Science Manager at Better.com from April 2018 to March 2022, where the focus was on developing machine learning models for optimizing pricing, hedging, and lead acquisition. Stephen's experience also includes roles as a Data Engineer at Rockerbox and as a Data Scientist at Citi, where responsibilities involved quantitative analysis and trading in Latin American derivatives, automation of pricing processes, and creation of back-testing frameworks for risk methodologies. Early in the career, Stephen was a Research Assistant at Carnegie Mellon Department of Statistics, contributing to academic research on competing process hazard function models in sports analytics. Stephen holds a Bachelor's Degree in Mathematics, Economics, and Statistics with a minor in Computational Finance from Carnegie Mellon University.