 He was part of the Dinamo Tirana U-19 side for the 2010–11 season where he was the team captain.Marku made his professional debut against Flamurtari Vlorë on 20 April 2011 in a 6–2 loss, coming on as a substitute in the 57th minute for Nurudeen Orelesi.He was then promoted to the starting line-up for the 2011–12 season because of Dinamo's extreme financial difficulties which resulted in nearly all of the senior players to leave the club in the summer.