After graduating from college, Malcolm started his professional career with Batumi in Georgian Superliga in 2019.
Kauhajoki Karhu
On 24 June 2020, he moved to Finland and signed with Kauhajoki Karhu Basket in Korisliiga for the 2020–21 season.[1] On 6 May 2021, the club exercised their option to extend Malcolm's contract for the next season.[2] At the end of the 2020–21 season, the team finished second in the domestic league.
Keravnos
On 22 July 2021, it was announced that Malcolm would move to Keravnos in Cyprus. Keravnos paid Karhu a fee for his contract.[3] With Keravnos, Malcolm won the Cypriot League and the Cypriot Basketball Cup in 2022.
In July 2023, Malcolm followed coach Iisalo to France and signed with Paris Basketball of the LNB Élite and the EuroCup.[5] In February 2024, Paris won the French League Cup title. 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. Paris also reached the LNB Elite Finals, but finished 2nd by 3–1 loss to AS Monaco.
On 4 October 2024, Malcolm debuted in the EuroLeague with Paris, in a 80–77 defeat against KK Crvena zvezda, recording six points.