· Honorary Professor, University of Edinburgh2025–
· Emeritus Professor, McGill University2024–
· Core Academic Member, MILA - Quebec Institute of Artificial Intelligence2018–2024
· Professor, McGill University1996–2024
· Associate Professor, McGill University1990–1996
· Associate Professor, Queen's University1990–1990
· Assistant Professor, Cornell University1985–1989
· Research Assistant, Cornell University1985–1985
· Associate Instructor, University of Utah1983–1983
· MS in Computer Science, University of Utah1982–1985
· Research Assistant, University of Utah1980–1982
· Ph.D. in Physics, University of Wisconsin-Milwaukee1977–1980
· M.S. in Physics, University of Chicago1975–1977
· M.Sc. in Physics, Indian Institute of Technology, Kanpur1970–1975