He currently plays for Alemannia Aachen, wearing the number 3 shirt. At the international level, he represents Germany U19. He plays primarily as a Defender. His preferred foot is Left. His current market value is estimated at 300K €.

His most recent move was a Loan from Alemannia Aachen to SpVgg Greuther Fürth on 2026-06-29.

Throughout the German 3.Liga 2025-2026, Matti Wagner featured in 13 matches, averaging 0.7 tackles, 0.2 interceptions, and 0.8 clearances per game, while blocking 0.2 shots per game.