Sözen graduated in theatre from Pera Fine Arts College. She made her film debut in Director Çağan Irmak's Bana Şans Dile and has gone on to act in several other films such as Okul, O Şimdi Mahkum, Cenneti Beklerken, Eve Giden Yol 1914, Para=Dolar, Casus Kızlar and Av Mevsimi.
She is best known for portraying Nihal in the Nuri Bilge Ceylan's Winter Sleep, which won the Palme d'Or at the 2014 Cannes Film Festival.
