He plays primarily as a Midfield. He stands at 179cm tall and weighs 64kg.

His most recent move was a from Emmen to ACV Assen on 2017-07-01.

Across 1 appearances in the Netherlands KNVB Cup 2025-2026, J. Mulder registered 0 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.