Jamsen is Los Angeles 2020 seventh-round pick (190th overall) and has signed a two-year, $1.705 million ($852,500 AAV) entry-level contract which will bring the forward over to North America in 2024-25. The 21-year-old winger has spent the last three seasons with Pelicans of Liiga in Finland and had an impressive 2023-24 with 14 goals and 25 points in 36 total games played.