[4] After taking acting classes in Manisa, Şaşmaz moved to Istanbul and made his cinematic debut in 2017 with the role of Omer in Kötü Çocuk alongside Tolga Sarıtaş and Afra Saraçoğlu.

[5] The heartwarming movie is based on a true love story that overcomes obstacles, time, and distance.

[10] He played Feyzullah Altiparmak in the military series Söz (2017–2019) which was nominated for International Emmy Awards.

In 2023, he played the role of Onur Beyoğlu in Altın Kafes, a Turkish adaptation of the Korean series The Last Empress.

[17] Aytaç Şaşmaz joined Netflix's second season of Zeytin Ağacı (Another Self) in the role of Diyar, a young man whose life changes after meeting Ada.