During 2018–2020, Dieye played in Ukrainian Premier League. First he signed with Olimpik Donetsk in the summer 2018. He spent one and half years with the club, before he was loaned out to fellow Ukrainian Premier League club Karpaty Lviv for the rest of the 2019-20 season.
After playing for two years for the Croatian team HNK Gorica, during which he scored 7 goals in 55 league appearances, the club and Dieye officially parted ways on August 1, 2022.[4]
In March 2023, Dieye signed for KuPS on loan for the 2023 season with the option to buy.[5] He made three league appearances with the first team, and additionally two appearances with the reserve team, but ultimately was unable to make an impact.