Seo Young-Jae is a 31-year-old professional football player from KOR. He currently plays for Daejeon Citizen, wearing the number 11 shirt. At the international level, he represents South Korea U21. He plays primarily as a Defender. He stands at 182cm tall and weighs 75kg. His preferred foot is Left. His current market value is estimated at 350K €.

His most recent move was a Loan from Dangjin Citizen to Daejeon Citizen on 2025-11-26.