2003-2008, PhD student, Department of Mathematics, University of Wisconsin-Madison

1998-2003, Undergraduate student, Special class for gifted young, University of Science and Technology of China

2018-present, Professor, School of Mathematical Sciences, University of Science and Technology of China

2012-2018, Assistant Professor, Associate Professor, Department of Mathematics, University of Wisconsin-Madison

2011-2012, Research Assistant Professor, Simons Center for Geometry and Physics, SUNY at Stony Brook

2008-2011, Instructor, Department of Mathematics, Princeton University