2014-15             Professeur invité, Institut J.A. Forel, Laboratoire de Sciences Préhistoriques, Sciences de la Terre, Université de Genève.

2007-8              Visiting Academic, Centre for the Evolution of Cultural Diversity, Archaeology Institute, University College London.

2007-8               Visiting Researcher, Leverhulme Centre for Human Evolutionary Studies, Cambridge University.

2003                  Associate Professor, département d'anthropologie, Université de Montréal, Montréal, Québec, Canada.

1999                  Associate Professor. Department of Anthropology, University of Manitoba, Winnipeg, Manitoba, Canada.

1999                  Visiting Professor, Université de Paris VI, Pierre et Marie Curie (January-May).

1994                  Assistant Professor. Department of Anthropology, University of Manitoba, Winnipeg, Manitoba, Canada.

1993                  Research Associate. Archaeological Surveys of Canada. Canadian Museum of Civilisation, Hull, P.Q.

1992                  Adjunct Professor. Departments of Sociology and of Classical Studies, University of Ottawa, Ontario, Canada.

1992                  Adjunct Professor. Department of Classics, Carleton University, Ottawa, Ontario, Canada.