

He currently plays for Sportfreunde Lotte, wearing the number 39 shirt. He plays primarily as a Defender. He stands at 183cm tall and weighs 78kg. His preferred foot is Left.
His most recent move was a from Sportfreunde Lotte to VfB Bottrop on 2026-07-01.
Throughout the German Regionalliga 2025-2026, J. Riemer featured in 30 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.