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Ziheng Ziheng is a data scientist currently employed at Santander Bank, N.A. since October 2023. Prior to this role, Ziheng worked as a data engineer at Facebook from November 2020 to February 2023, where responsibilities included building a reliable data foundation for Messenger, Instagram, and Facebook, as well as designing data models and ensuring data accuracy. Ziheng's experience also includes serving as a data scientist at Graphen from July 2018 to October 2020, focusing on data preprocessing and the development of machine learning algorithms in collaboration with cross-functional teams. Earlier professional experience includes a data entry consultant role at The World Bank & International Finance Corporation, a teaching assistant at The Johns Hopkins University, and a risk management intern at The People’s Bank of China Credit Reference Center. Ziheng holds a master’s degree in applied mathematics and statistics from The Johns Hopkins University and a Bachelor of Science in applied mathematics from Beijing Forestry University.