[7] He and his sister were raised by their widowed mother as their father died in a car accident around the time Cédric was born.

He also had several fights, including in Glory, with Mejiro Gym sensei Andre Mannaart in his corner.

[10][11] During the Monte Carlo Fighting Masters Series, he fought Ljubo Jalovi for the WAKO Pro K1 World Middleweight title.

[17] Doumbé's second fight with Glory was more successful, as he achieved a unanimous decision win over Murthel Groenhart.

This run earned him a chance to fight for the Welterweight title, held at the time by Harut Grigorian.

[41] The fight fell through once more, as main event fighter Badr Hari contracted COVID-19[42] and due to a partial lockdown imposed by the Dutch government.

[51] In October 2021, Eduard Irimia announced that Superkombat Fighting Championship signed Doumbé to a contract.

He would make his promotional debut at Superkombat Universe on November 1, 2021, against Arbi Emiev in the main event.

[59][60] Later in an interview with Ariel Helwani, Doumbé revealed that the MRI scan of his head indicated blood in his brain, which was the other primary reason why the bout was called off.

[61] Doumbé returned to the French regionals, facing Florent Burillon on December 17, 2022 at MMA GP Bordeaux, knocking out his opponent at the end of the first round.

[62] Doumbé faced Paweł Klimas on March 4, 2023 at MMA GP: Paris, winning the bout via TKO stoppage in the second round.

[63] On May 10, 2023, it was announced that Doumbé had signed a two-year contract with the Professional Fighters League (PFL), after entertaining offers from several major organizations including the UFC.

[69] Doumbé next faced fellow undefeated fighter Baissangour "Baki" Chamsoudinov on March 7, 2024 at PFL Europe 1 (2024).

[70] The bout ended in controversial fashion in the third round after Doumbé had a piece of glass embedded in his left foot's big toe.

Rather than assess the situation, referee Marc Goddard immediately called the bout, resulting in a TKO due to injury loss for Doumbé.

[72] However, Anderson was involved in a hit-and-run accident that severely injured his left foot and withdrew from the bout.