He previously played in the Swedish Hockey League (SHL) for Frölunda HC and Skellefteå AIK.

On 13 May 2021, Söderblom signed a two-year contract with the Chicago Blackhawks of the NHL.

[1] On 1 January 2022, Söderblom made his NHL debut in a game against the Nashville Predators.

[4] Söderblom's younger brother, Elmer, is a professional ice hockey player for the Detroit Red Wings of the NHL.

[5] This biographical article relating to a Swedish ice hockey player is a stub.