Grandmaitre, 36, is a native of Gatineau, Que., and a former assistant coach with the university's women's hockey team.
Since 2010, Grandmaître has taught at Gatineau's Collège Nouvelles-Frontières where he helped launch and has run the school's hockey program. He also worked with the Gatineau Intrépides midget AAA team.
Grandmaitre will also serve as a guest coach at the Ottawa Senators rookie camp this summer, the university announced.
Jacques Martin to work as special advisor
Ottawa Senators president and CEO Cyril Leeder and former Senators head coach Jacques Martin were part of the special committee tasked with finding a new coach.
Martin will continue to work as a special advisor as Grandmatire recruits players over the next year, the university added.
The need for a new coach came about after the former coach, Real Paiement, was fired after a reported incident of sexual assault occurred during a road trip to Thunder Bay, Ont.
The men's hockey program was then suspended in March 2014. It recently re-launched with the search for a new coach as priority number one.
The school said it hopes to have the money for 25 scholarships to help recruit players.