 On 1 July 2015, İrtegün agreed with İstanbul Başakşehir on a three + one years.İrtegün has represented Turkey since youth level, he has played for the under-15 team, the under-16 team, the under-19 team, the under-20 team and the under-21 team.On 2 June 2012, İrtegün made his debut for the senior team in a 3-1 victory over Portugal in a Friendly.