 The highlight of his professional career was being assistant to Guus Hiddink at PSV in the 1987-1990 seasons.Dorjee and Hiddink worked together for three full seasons and won the Eredivisie, KNVB Cup and UEFA Champions Cup in 1988.He stayed at the club when Hiddink left in 1990 and was succeeded by Bobby Robson, but Dorjee left the club in 1991.