Alain was born in Montréal, Quebec. A-Trak was the first DJ to win all three major DJ competition titles (DMC, ITF and Vestax). He won the DMC World DJ Championship in 1997 at the age of 15, making him the youngest and first Canadian winner of the competition. He was an honorary member of the prestigious, now defunct DJ crew Invisibl Skratch Piklz, and a member of The Allies alongside frequent collaborator DJ Craze.
In the late 90's he developed a notation system for scratching. He gave a lecture about it at the Skratchcon 2000 conference and published an article in Tablist Magazine. He has also appeared on the cover of multiple magazines including Billboard, URB, BPM and Status.
He and his brother Dave ran the record label Audio Research from 1997–2007. In 2007 he founded the Fool’s Gold Records label with Nick Catchdubs. In 2004 Kanye West recruited him as his personal tour DJ, and he has worked closely with him ever since, including performances alongside the US rapper at MTV specials, the Grammy Awards, multiple MTV Video Music Awards.
He is known for merging the sounds of rap and electronic music through his remix work, his 2007 CD Dirty South Dance, his production for Kid Sister and Lupe Fiasco, and his remixes for electronic artists including MSTRKRFT and Boys Noize. The hit single by Kid Cudi, "Day 'n' Night", was released on an EP by his label. His releases such as "Piss Test" featuring Juicy J and collaborations with Tommy Trash on "Tuna Melt" displays his separation of his hip-hop and electronica personas. In 2009, he formed a disco house duo called Duck Sauce. Duck Sauce has achieved massive success worldwide including reaching the top chart position in twelve countries and attaining the coveted #1 spot on the US Dance Billboard charts.