Originally from the Netherlands, Dean has been karting from the age of four and has quickly progressed through the karting ladder. At the age of nine, Dean was the youngest winner of the WSK Super Master Race Mini GR3 Class in history, a record that still stands today.

Many notable achievements followed, including multiple WSK race wins, two victories at the WSK Final Cup, and 2023 WSK Euro Series OK-N Junior Champion.

Progressing to the OK Junior karting class with Kart Republic in 2024, Dean achieved a third place in the prestigious WSK Super Master Series and fourth in the Champions of the Future Valencia. In August of the same year, Dean was announced as part of the Williams Racing Driver Academy, joining a talented roster of up-and-coming talent.