Born in
Turku, Heino began his career in the youth team of Turun Nappulaliiga, later continued in the academies of
TPS and
Inter Turku, before trialling with German side
VfL Wolfsburg and English side
Chelsea in 2020. He signed with the latter in September of the same year. After a season with Chelsea, in which he only appeared once for the under-18 side, he moved to Germany to join VfL Wolfsburg. However, he also failed to settle in Germany, again notching only one appearance for Wolfsburg's youth side, before a return to Finland with
SJK in August 2022. He scored his first goal for SJK's reserve team, SJK Akatemia, in a 4–3 loss to PK-35 in the 2022 Ykkönen relegation group. ==International career==