The 6'8" forward/center played at Temple University, where he graduated in 1998, before signing a professional contract in China with the Beijing Ducks.
Further ventures with Maccabi Karmiel (Israel), Siouxland Bombers, and Potros de Villa Francisca (Dominican Republic) followed before he eventually settled with Sheffield Sharks in 2001.
After a one-season hiatus in Belgium, with Euphony Bree, Stewart moved back to England in 2007, to sign for league champions Newcastle Eagles.
In 2011, Stewart became the head boys' basketball coach at William Penn Charter School in Philadelphia, Pennsylvania.
Beginning in 2015, he took over the basketball team at Simon Gratz High School (his alma mater), which also located in Philadelphia.