He made his professional debut for the latter on 3 June 2023, coming on as a 46th-minute substitute for Umut Güneş in a 5–1 away Süper Lig loss to Trabzonspor.
He recorded his debut in a goalless draw at Ümraniyespor on 19 August 2023, and on 21 October scored his first senior goal in a 3–0 home win over Şanlıurfaspor.
Akdağ contributed with three goals from 25 appearances in the second tier championship, as Göztepe finished as runners-up and promoted to the Süper Lig.
In November 2023, Akdağ was called up by head coach Daniel Pancu to the Romania under-21 national team for the matches against Albania and Switzerland in the 2025 UEFA European Championship qualifiers.
[3][4] On 15 October 2024, Akdağ scored in a 3–1 home win over Switzerland, which secured Romania first place in its group and qualified it for its fourth consecutive European Under-21 Championship.