since 1997 monster workshop
director

since 2002 CO1 School of Visual Arts
lecturer and curriculum planner

2007-2013 The Hong Kong Polytechnic University
part time lecturer

2008-2010 Hong Kong Design Centre
workshop lecturer

1997-2002 Hong Kong Chingying Institute of Visual Arts
lecturer

1993-1997 Tommy Li Design Workshop
designer

1989-1993 Kinggraohic
designer

1985-1989 Charles Lam Production
designer