Boards: Conseil d'Administration de La Fondation Sciences Mathématiques de Paris (2013- )；Advisory Board of the Institute of Mathematics Academica Sinica (Sep 2013-Dec 2016); Mprime NCE (2011-14); UBC Board of Governors (2008-14); Peter Wall Institute Academic Advisory Board (2010-2012); Board of Directors of British Columbia Medical Services Foundation (2008-11); Pacific Institute for the Mathematical Sciences, PIMS (1995-2003); Mathematics of Information Technology & Complex Systems network, MITACS (1999-2003 and 2008-16); Banff International Research Station, BIRS (2009-18); Atlantic Association for Research in the Mathematical Sciences, AARMS (2003-10); Canadian Mathematical Society, CMS (1994-96).
Granting Foundations: Simons Foundation (2012); Killam Prize and Fellowships Selection Committee (2007-10); Member of the NSERC Grant Selection Committee 336/337 (1993-96), and Chair (1995-96); Math/NSERC Liaison Committee (1995-96 and 2008-10); NSERC's Re-allocations Mathematics Steering Committee (2000-02); Fermat Prize Committee (1993); CRC College of Reviewers; Reviewer for Dutch Technology Foundation; Qatar National Research Fund (QNRF); FONDACYT (Chile); RGC (Hong Kong); Comité d'évaluation - FQRNT (Québec).
Institutes Management: Scientific Director of the Mprime NCE (2011-14); Founding Director of PIMS (1996-03); Co-founder of the MITACS network and member of its Steering Committee (1999-03); Founder of BIRS and its Scientific Director since 2004; Steering Committee of PRIMA (Pacific Rim Mathematical Association).
Royal Society of Canada: Elected member (1994); Chair of the Synge Prize Committee (2001-04), RSC Executive Committee for Math, Physics and Chemistry (2001-04).
University of British Columbia: Search Committee for UBC President (2013-14); Search Committee for MITACS CEO (2014); Chair of UBC Housing Action Task Group (2011-12); Board of Governors (2008-11); Committee for reappointment of the President (2010); Committee for reappointment of VP-Research (2010); Committee for reappointment of Chancellor (2010); Africa Awareness Committee (2010); Dean of Science Selection Committee (2005-06); Executive Committee for Research, UBC (2004-06); Selection Committee for Director of the Peter Wall Institute (2002-03); Re-appointment Committee for Dean of Graduate Studies (2002); Presidential Review Committee for Canada Research Chairs (2001-03); Dean's Head Selection Committee (1993, 2002).
Other: Vice-President of the CMS (1994-96); National Mathematics Coordinator for the 3 x 3 Canada-China Initiative; Canada delegate to the International Mathematics Union (1998, 2002, 2006); Coordinator of Association of International Mathematical Science Institutes, IMSI (2006-2010).