· Philologist Of Chinese, Gerundivist LLC2019–
· Faculty Director of the Tang Center for Early China, Columbia University2015–
· Professor of Early Chinese History and Archaeology, Columbia University in the City of New York2013–
· Graduate Student, Hacker School2013–2014
· Graduate Student, City College of New York2012–
· Tenured Associate Professor, Columbia University2009–2013
· Assistant Professor, Columbia University2001–2007
· Assistant Professor, Arkansas State University2000–2001
· PhD Student, Columbia University1997–
· M.A., Columbia University1990–
· M.A., Chinese Academy of Social Sciences, Graduate School1986–
· Assistant Research Fellow, Institute of Archaeology, Chinese Academy of Social Sciences1986–
· Bachelor's degree, Northwestern University (China)1984–
· Part-time Lecturer, Columbia University
· Gerundivist LLC
· Member, Institute for Advanced Study
· Professor of Chinese, University of Maryland