He represents the Snow Valley Freestyle Team.
In December 2024, Joewen Frijns finished 3rd in the rail event during the European Cup in The Hague, scoring 80.70 points. A month earlier, in November 2024, he secured 2nd place in big air at the FIS competition in Glacier 3000, Switzerland, achieving 49.70 points. In October 2024, he claimed victory in the rail event at the FIS competition in SnowWorld Landgraaf, Netherlands, earning 50.00 points.