On August 6, 2020, Hazer joined Beşiktaş on a three-year contract.[3] He had a productive season with Beşiktaş, as he averaged 14.9 points per game in Turkish Basketball Super League.
On 12 September 2021, Hazer signed a three-year contract with EuroLeague powerhouse Fenerbahçe Beko beginning from the 2021-2022 season.[5] On July 1, 2024, he parted ways with the club and then joined the Sacramento Kings for NBA Summer League.[6]