[8] Prior to the start of the 2015–16 season, Olivier was named an assistant captain alongside Alex Pawelczyk, Zachary Taylor, Alexis D'Aoust, and Giovanni Fiore.
As a result of his play over his five seasons in the QMJHL, Olivier signed his first professional contract with the Milwaukee Admirals of the American Hockey League (AHL) on February 19, 2018.
[13] Upon concluding his major junior career, Olivier attended the Nashville Predators Development Camp and Prospects Showcase ahead of the 2018–19 season.
[16] Reassigned to continue his tenure with the Admirals to start the 2019–20 season, Olivier had 7 points in 17 games before earning his first recall to the Predators on November 18, 2019.
[18] Following his fourth season within the Predators organization, Olivier was traded to the Columbus Blue Jackets in exchange for a fourth-round pick in 2022 on July 1, 2022.