Maj Mittendorfer is a 26-year-old professional football player from SLO. He currently plays for FC Koper, wearing the number 15 shirt. He plays primarily as a Defender. His preferred foot is Right. His current market value is estimated at 500K €.

His most recent move was a from NK Publikum Celje to FC Koper on 2022-01-20.

Throughout the Slovenia 1.Liga 2025-2026, Maj Mittendorfer featured in 16 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.