He currently plays for Marek Dupnitza, wearing the number 21 shirt. He plays primarily as a Goalkeeper. His current market value is estimated at 250K €.

His most recent move was a from Minyor Pernik to Marek Dupnitza on 2021-07-01.

In the Bulgarian Vtora Liga 2025-2026, konstantin kostadinov played 19 matches, averaging 0 interceptions, 0 tackles, and 0 clearances per game.