He is a Belarusian professional football coach and a former player who played as a striker.
At the age of 16, he made his debut in the Higher League of Belarus. The next season the promising striker was invited to Dinamo Minsk. Sergey won the champion title in three countries — Belarus (Dinamo Minsk), Ukraine (Dynamo Kyiv), Russia (Zenit). During the 10/11 season played in the English Premier League for Blackpool FC. In the summer of 2020, Sergey Kornilenko became the sports director of Krylia Sovetov.