Sims moved to Sweden to join Ljungskile SK in January 2022, alongside two of his countrymen, Otto Ingham, and Robert Sabo.[7][8] He was a substitute for the first fourteen games of the season but following an injury to first choice goalkeeper Oliver Bergman he made his debut against BK Olympic in July 2022, and kept his place for the remainder of the season.[9] Sims signed a new three-year contract with the club in September 2022.[10] During the off-season Sims trained with Premier League side Leicester City in January 2023.[11]
International career
Sims was called up by New Zealand under-23 national team to play China in March 2023.[12] He started that game and subsequently was named in the New Zealand squad for the 2023 FIFA U-20 World Cup.[13]