When he was sixteen years old he moved to Tampere and started study in Varala sport high school.

He won on his first season in Raision Loimu bronze medal of Finnish Championship.

Same year he was in youth World Championships were Finland played history best result, 4. place.

After many seasons in Finland volleyball league Heikkinen made professional contract with CV Las Palmas.

Last season in Torino, Heikkinen won with his team Italian A2-Cup silver medal.

Heikkinen debuted in Finnish national team as 17-year-old player against Croatia in the World Championships qualification.