In the 2008 championship game, he hit a game-winning shot that gave the team a one-point victory.
[5] In 2008, he and Cory were selected to play in the annual All-Canada Classic, which showcases the top high school players in Canada.
In March 2017, he signed with Venezuelan club Bucaneros de La Guaira for the 2017 LPB season.
[17] On December 22, 2017, Joseph signed with Finnish club BC Nokia for the rest of the 2017–18 Korisliiga season.
[21] On August 11, 2021, he has signed with Stelmet Zielona Góra of the Polish Basketball League (PLK).
[22] Joseph played for the Canadian junior national team at the 2007 FIBA Under-19 World Championship, where he was the tournament's second-leading scorer with 22.6 points per game.
[23] He played for the senior national team at the 2013 FIBA Americas Championship, alongside Cory.