 Kosovskyi is notable for representing Dynamo Kyiv in the late 1990s alongside Serhiy Rebrov and Andriy Shevchenko, usually playing the starting left winger.Kosovskyi's career was cut short in the early 2000s by numerous injuries, which prevented his numerous comeback attempts.Following a 9-year career with Dynamo, Kosovsky retired in 2003 to be a scout for Dynamo Kyiv.