Yoon, a draftee from the 2010 K-League draft intake, was selected by Incheon United FC for the 2010 season. His professional debut was in an away match against Jeju United on 7 November 2010, a match in which he kept a clean sheet as well as earning a yellow card.
Yoon was the first choice keeper for Incheon at the start of the 2011 season, but by early April, a series of poor performances saw him replaced by Song Yoo-Geol. Yoon was an unused substitute for the remainder of the matches played in April. On 6 May 2011, Yoon's body was found in his car at a rest stop along an expressway near Seoul. He is presumed to have committed suicide.