Bursaspor Raşit Çetiner called Aziz up to the senior squad in 2006. Although he did not make his debut, Aziz was allowed to train alongside the senior players. He was loaned to feeder club Bursa Merinosspor for the 2007–08 season. Aziz was not open to the move, but warmed up to the idea after he realized the club was virtually one and the same with Bursaspor. He admitted the physical nature of the
TFF Third League helped aid his development into becoming a professional centre-back. He was a part of the Bursaspor squad that won the
Süper Lig in
2009–10.
Galatasaray On 1 July 2016, Aziz transferred to
Süper Lig club
Galatasaray for €4.5 million. He made his debut for the team in a 5–1
Turkish Cup win over Dersimspor on 25 October 2016. He made his Süper Lig debut for the team in a 2–0 loss against
Fenerbahçe in
The Intercontinental Derby on 20 November 2016. On 23 February 2018, he scored against his former club Bursaspor in a 3–0 win, after scoring he chose not to celebrate.
Fenerbahçe On 31 January 2019, Aziz transferred to another
Süper Lig, club
Fenerbahçe, for three and half years on free transfer. He made his debut in a 1–0 win over
Göztepe on 8 February 2019. On 20 May 2022, he signed another three-year deal with the team. On 21 September 2023, he scored his first continental goal against
Nordsjælland in
UEFA Europa Conference League, Fenerbahçe won 3–1. On 8 July 2024, Aziz came to a mutual agreement with the coach
Jose Mourinho and the club to be transferred to another club and left the camp. ==International career==