Guy Desaulniers holds a BSc and a MSc in mathematics from Université de Montréal, and a PhD in applied mathematics from Polytechnique Montréal. After his PhD, he occupied various professor and researcher positions before being hired in 2000 as an associate professor in the Department of Applied Mathematics and Industrial Engineering at Polytechnique Montréal where he still teaches, conducts research, and supervises graduate students as a full professor since 2007. So far, Guy has (co-)supervised more than 55 MSc students, 35 PhD students, and 15 post-docs, and co-authored more than 130 papers published in refereed journals, 10 book chapters and 1 book on branch-and-price.

His main research interests are on branch-and-price, mathematical decomposition methods, integer programming, and dynamic programming, applied to various problems arising in all modes of transportation, logistics, and personnel scheduling. He has been involved in many industrial research projects, especially with the optimization software companies AD OPT (IBS Software), Kronos (UKG), and GIRO Inc. Since 2019, Guy also acts as a scientific advisor at IvadoLabs, a company providing optimization and machine learning solutions to large Canadian organizations.

Since the beginning of the 1990s, Guy has been active at the GERAD as a PhD student, an associate member, a postdoc, a regular member, and also the Director of the GERAD (2015-2019). He finds that the GERAD offers a unique environment to conduct research, supervise graduate students, organize and participate in scientific activities, exchange with renowned and young researchers, and start new collaborations. Throughout his career, he has collaborated with close to twenty GERAD members.