Bruinier made his debut in professional football as a member of the Vitesse squad in the 2006–07 season. On 3 March 2007, he came on the pitch for the first time as a substitute for the injured Onur Kaya in a 2–3 home loss to Excelsior.
Bruinier began his professional football career with Vitesse during the 2006-2007 season. He made his first game appearance by replacing injured teammate Onur Kaya in a 2-3 home defeat against Excelsior on March 3, 2007.