Liefei Xu is a software engineer with extensive experience across prominent technology companies, including Amazon, Google, and Merrill Lynch. With a Master's degree and a PhD in Computer Science from Nanjing University and Stevens Institute of Technology, respectively, Liefei has contributed to various projects, including performance ads at Amazon and Google Search. Previous roles include software development in equity trading systems at Merrill Lynch and Jefferies LLC, as well as research in computer vision at Stevens Institute of Technology, where Liefei developed an automatic facial expression recognition system utilizing GPU programming to significantly enhance processing speed. Additional experience includes work as a software engineer and quality engineer at Alcatel-Lucent, focusing on subsystems for 3G mobile networks.
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