Career
De Jongh began his playing career at NAC Breda, before moving to Sparta Rotterdam. His professional career was cut short due to a serious ankle injury. De Jongh then moved into coaching, beginning his managerial career at RKC Waalwijk as a youth coach, before becoming a youth coach for the Royal Dutch Football Association (KNVB).
He moved on to manage vv VRC in Veenendaal, Football Club Dordrecht"s reserve team and Vitesse Delft before becoming the assistant coach of Arizona in the Eredivisie.
He then went to Hungary to become the academy director of Budapest Honvédaughter Budapest Honvéd
In December 2013 he signed his contract ready to commence duties as the new technical director for Budapest Budapest Honvédaughter
During his tenure, he strove to bring the Dutch philosophy to the academy. A.F.C. Leopards
On 15 May 2014, Kenyan Premier League giants A.F.C. Leopards announced that De Jongh was set to take over at the club, subject to personal terms.
He landed in Kenya and completed his move to the club on 17 May.
He later lead his side to the final of the 2014 CECAFA Nile Basin Cup, where they were defeated by Ugandan side Victoria University.
After a string of poor performances in the league, players and fans alike questioned De Jongh"s tactical approach, blaming his team selection for their barren draw against Bandari. However, De Jongh said he was not worried about the fans, reminding them of the team"s performances in the Nile Basin Cup and the KPL Top 8 Cup, where they lost to Tusker in the final. His sacking made him the 14th coach to be sacked by the club in five years.
In January 2015, De Jongh returned to training with A.F.C. Leopards, claiming his dismissal had not been communicated to him.