Born and raised by his Malaysian parents[1] in Carbondale, Illinois, United States, Wan Kuzain played Academy soccer with St. Louis Scott Gallagher.

[3][4] Wan Kuzain signed with United Soccer League side Saint Louis FC on May 21, 2016.

[5] While there, he spent time on loan with the club's USL Premier Development League side Saint Louis FC U23.

[12] On March 1, 2021, Kuzain signed with USL Championship side Rio Grande Valley FC Toros.

[16] In November 2019, Kuzain was called up to train with the Malaysia under-22 national team ahead of the 2019 Southeast Asian Games.