Quan Geng is a senior software engineer working on large-scale machine learning at Google AI, New York. He received B.S. in Electronic Engineering (2009) from Tsinghua University (admitted to Tsinghua Univeristy as the Champion of National College Entrance Exam in Anhui Province in 2005), and M.S. in Electrical and Computer Engineering (2011), M.S. in Mathematics (2012), and Ph.D. in Electrical and Computer Engineering (2013) from University of Illinois at Urbana Champaign. His PhD thesis is The Optimal Mechanism in Differential Privacy. He worked as a high-frequency trading quantitative researcher in Tower Research Capital from 2013 to 2015.