After graduating from college, Malcolm started his professional career with Batumi in Georgian Superliga in 2019.

On 24 June 2020, he moved to Finland and signed with Kauhajoki Karhu Basket in Korisliiga for the 2020–21 season.

In July 2023, Malcolm followed coach Iisalo to France and signed with Paris Basketball of the LNB Élite and the EuroCup.

They were also crowned the EuroCup champions, after beating fellow French team Bourg 2–0 in the finals, and thus earning a spot in the next season's EuroLeague.

On 4 October 2024, Malcolm debuted in the EuroLeague with Paris, in a 80–77 defeat against KK Crvena zvezda, recording six points.