Born in Zwolle, he played for amateur clubs Rohda Raalte, WVF and Vitesse as a youth. In 2005, he joined PEC Zwolle in the Eerste divisie. In May 2010, Scottish club Falkirk were linked with a move for him,[2] but he joined AZ in the Eredivisie in 2011, for a fee of around €100,000.
Managerial
Ahead of the 2022–2023 season, Reijnen joined PEC Zwolle as assistant coach. For the 2023–2024 season, he joined Cambuur as technical director.[3] On 29 October 2023, Feyenoord announced that Reijnen had joined the club as assistant coach, where he would focus on analyzing and providing technical advise to head coach Arne Slot.[4]