Rastoder joined Grasshopper Club Zürich's academy in 2017 and has been a part of their various youth squads.
[2] He made his professional debut for the first team of Grasshopper on 16 October 2020 against Xamax in the Swiss Challenge League.
[1] His top flight debut in the Swiss Super League occurred on 20 March 2022 against FC Basel, when he was subbed on for the last ten minutes of the game.
[1] To further develop his skills and earn more play time, he was loaned to FC Vaduz in the Swiss Challenge League for the 2022–23 season.
[4] However, he was unable to find a fixed spot on the squad during the first half of the season, managing just over 100 minutes played across six games.