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Yigao Liang is a seasoned professional in quantitative analytics and model risk management, currently serving as a Senior Director of Quantitative Analytics at Freddie Mac since July 2024. Previously, Yigao held the position of Vice President and Head of Model Risk Management at PenFed Credit Union, where significant strides were made in establishing a comprehensive MRM program. Prior experience includes serving as Model Risk Director at The Depository Trust & Clearing Corporation, and a lengthy tenure at Fannie Mae, where Yigao led teams in macro risk modeling and developed innovative quantitative methods for asset liability management and derivatives accounting. Yigao Liang holds a PhD in Physics from Virginia Tech.