- 2019-present, Associate Vice President (Innovation & Enterprise), The Chinese University of Hong Kong
- 2019-present, Honorary Professor, Chinese University of Hong Kong
- 2013-present, Adjunct Professor, University of Hong Kong Science and Technology
- 2013-2018, Biomedical Technology Cluster Head, Hong Kong Science & Technology Parks Corporation
- 2010-present, Honorary Professor, Faculty of Medicine, University of Hong Kong
- 2010-2013, General Manager and site Head, Roche Pharma Research and Early Development China, Shanghai
- 2008-2010, Senior Director and Head, Translational Medicine, Senior Director, Neurodegeneration, Global co-Director, Rare Diseases, GlaxoSmithKline China, Shanghai
- 2000-2008, Program Leader, Biogen Inc USA, Boston
- 1991-2000, Senior Scientist, Johnson & Johnson USA, Philadelphia
- 1989-1990, Visiting Scientist, Terry Fox Laboratory, BC Cancer Agency, Vancouver, Canada
- 1983-1990, Staff Tutor, Clinical Biochemistry Unit, Queen Mary Hospital, University of Hong Kong
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