The start of the 2013–14 season saw Kuipers beginning with the reserves team Jong Ajax who had recently been promoted to the Dutch Eerste Divisie, the 2nd tier of professional football in the Netherlands, having previously played in the Beloften Eredivisie. On 30 August 2013 Kuipers made his professional debut for the reserves team in a home match against Jong Twente. The match ended in a 2–1 victory for the Amsterdammers. On 8 September 2013, Kuipers wore the captain's arm band for the first time for Jong Ajax in the away match against Achilles '29, which ended in a 2–1 loss.
