At young age he was scouted by both FC Den Bosch and Willem II.
Because of the commuting distance he made the choice for FC Den Bosch.
This time he made the choice for the PSV Eindhoven youth academy.
[2] Although PSV wanted to give him a chance in the reserve squad, Waalkens signed a two-year deal (with option) with Willem II.
August 9, 2009 he made his professional debut in the awaymatch against FC Utrecht (1–0 loss).