| Dates | Position | Department | Institution |
| 2017 – 2018 | Adjunct Faculty | Mythological Studies | Pacifica Graduate Institute (California) |
| 2013 – 2014 | Visiting Professor | Religious Studies | Charles University, Prague (Czech Republic) |
| 2011 – 2012 | Senior Research Scholar and Senior Lecturer | Institute of Sacred Music | Yale University (USA) |
| 2005 – 2010 | Professor and Chair of Ritual Studies; Project Director: Ritual, Media, and Conflict; Project Affiliate: Refiguring Death Rites | Faculty of Religious Studies | Radboud University Nijmegen (Netherlands) |
| 2008 – present | Emeritus Professor of Religion and Culture | Religion and Culture | Wilfrid Laurier University (Canada) |
| 1974 – 2008 | Professor of Religion and Culture | Religion and Culture | Wilfrid Laurier University (Canada) |
| 1997 – 1998 | Visiting Professor | Religious Studies | McGill University |
| 1992 – 1994 | Distinguished Visiting Professor | Religious Studies | University of Colorado at Boulder |
| 1987 | Visiting Professor | Ritual Studies, Liturgy | University of Notre Dame |
| 1985 – 1986 | Visiting Professor | Religious Studies | University of Pittsburgh |
| 1970 – 1974 | Assistant Professor | Religious Studies | Lawrence University |
| 1969 – 1970 | Instructor | Religious Studies | Barnard College, Columbia University |
| 1966 – 1967 | Tutor | Theology | Emory University |