2020 – Distinguished Investigator and Director, Institute of Population Health Sciences, National Health Research Institutes, Taiwan
2020- Board Director, International Cooperation and Development Fund
2019-2020 Director, Health and Clinical Research Data Center, Data Science, Taipei Medical University
2018- Ph.D Program in Global Health and Health Security, Taipei Medical University
2018-2020 Director Master Program in Applied Molecular Epidemiology, Taipei Medical University
2018- Professor, Master Program in Applied Molecular Epidemiology, Taipei Medical University
2018- Professor, School of Gerontology and Health Management, Taipei Medical University
2017- Chief Financial Officer, Asia-Pacific Academic Consortium for Public Health (APACPH)
2016- Director, Taiwan International Classification of Functioning, Disability and Health (ICF) Association
2016-2020 Director, Health and Clinical Research Data Center, Taipei Medical University
2016-2020 Director, Dr Chi-Chin Huang Stroke Research Center, Taipei Medical University
2015- Professor, Master Program in Global Health and Development, Taipei Medical University
2015-2017 Convener of Social Medicine, Ministry of Science and Technology Department of Life Sciences
2013- Professor, The Ph.D Program for Neural Regenerative Medicine, Taipei Medical University
2013- Professor, The Ph.D Program for Cancer Molecular Biology and Drug Discovery, Taipei Medical University
2012-2017 Vice President, Taipei Medical University
2012- Professor, Graduate Institute of Clinical Medicine , Taipei Medical University
2010-2013 President, Taiwan Public Health Association
2009-2013 Dean, College of Public Health and Nutrition, Taipei Medical University
2005-2009 Director, School of Public Health, Taipei Medical University
2003-2005 Dean, Office of Academic Affairs, Taipei Medical University
2002-2008 President, Taiwan Epidemiology Association
2002-2006 Director, Center for General Education, Taipei Medical University
2000-2002 Director, Center for Liberal Arts, Taipei Medical University
2000-2003 Minister, Teaching Evaluation Committee, Taipei Medical University
1999.02- Professor, School of Public Health, Taipei Medical University
1997-2000 Head, Curriculum Division of Office of Academic Affairs, Taipei Medical University
1995-1999 Associate Professor, School of Public Health, Taipei Medical University
1990-1995 Lecturer, School of Public Health, Taipei Medical University