text: * University Faculty Scholar, The University of Western Ontario: 2005–2007
  * Professor of Chemistry, The University of Western Ontario: 2005–present
  * Associate Professor, The University of Western Ontario: 2000–2005
  * Assistant Professor, The University of Western Ontario: 1995–2000
  * Associate Research Officer, National Research Council: 1994–1995
  ** Steacie Institute For Molecular Sciences
  ** Organic Reactions Dynamic Group
  * Research Associate, National Research Council: 1992–1994