Matilda Söderlund is a professional climber and the co-founder of Moumo,a boulder climbing gym. She began climbing at the age of 11. Within three months, she placed second in the junior Swedish championships, establishing herself as one of the best junior climbers in Europe. At the age of 20, she qualified as the first Swede for the world championship finals in climbing and came sixth at the world games in climbing the following year.

From 2013 to 2017, Matilda studied at the Stockholm School of Economics. After graduating, she decided to shift her focus from indoor competitive climbing to outdoor climbing.In 2019, she became the first (and still only) woman in the Nordics to climb a route with a difficulty level of 9a. In 2020, she climbed a boulder with a difficulty level of 8B, making her one of the very few women in the world to climb a 9a and 8B respectively outdoors.

In 2022, Matilda, along with Sasha DiGulian and Brette Harrington, climbed Rayu, the hardest big wall ever for a female team. She plans to continue pushing the limits in sport and big wall climbs all around the world.