ulderink started coaching at azsv. he then continued to sc varsseveld, sv dcs, and rohda raalte. his first manager gig at a professional team was assistant coach at de graafschap. he returned to rohda raalte, assisted again de graafschap, lead the youth department at de graafschap, and coached be quick '28. his first main coach position at a professional team was for go ahead eagles, followed by de graafschap, agovv apeldoorn, scout at afc ajax, young ajax, and assistant at reading (2016–2018). since 2018 he is the manager of ajax cape town.