[1][2] At senior level he won bronze in 2002 and a silver medal at the 2004 European Amateur Boxing Championships in Pula, Croatia where he lost to Dimitar Shtilianov.

Aydın won the 2004 World University Boxing Championships and also participated at the 2004 Summer Olympics in Athens, Greece but was eliminated in the first round by Shtilianov.

He was more successful at the 2005 Mediterranean Games in Almería, Spain and won the silver medal, at the World Championships 2005 he lost his third bout to Jong Sub-Baik.

After suffering the first loss of his career against Robert Guerrero, Aydin returned to the ring for a 10-round fight with Jesus Soto Karass on January 26, 2013.

Following an eighth-round KO victory over Aaron Herrera two months earlier, Aydin then went on to face DeMarcus Corley on September 27, 2013.