[1]Professor, College of Public Health, Zhengzhou University, 2025-

[2]Associate Professor, College of Public Health, Zhengzhou University, 2019-2024

[3]Lecturer, College of Public Health, Zhengzhou University, 2013-2019

[4]Assistant, College of Public Health, Zhengzhou University, 2009-2013

[5]Engineer, Reagent R&D Department, Shenzhen Mindray Bio-Medical Electronics Co., Ltd., 2008-2009