He is on the books of Marek Dupnitza and wears shirt number 21. His main role on the pitch is Goalkeeper. His stronger foot is Right. His estimated market valuation currently stands at 250K €.

His latest transfer saw him join Marek Dupnitza from Minyor Pernik via 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.