 He was the youth coach of Stefan Ishizaki, who later became a Swedish international.In 1997, Billborn moved to IF Brommapojkarna where he worked in different roles in the organisation.He was the academy coach for players John Guidetti, Albin Ekdal, Ludwig Augustinsson and Kristoffer Nordfeldt – who all four went on to play for the Swedish national team and in major European leagues in their professional careers.