Mattia walker is a 21-year-old professional football player from SUI. He currently plays for Vaduz, wearing the number 30 shirt. At the international level, he represents Switzerland U20. He plays primarily as a Defender. He stands at 184cm tall and weighs 78kg. His preferred foot is Left. His current market value is estimated at 200K .

His most recent move was a Transfer from Luzern to Vaduz on 2026-07-01.

Throughout the Elite League U20 2025-2026, Mattia walker featured in 3 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.