Ninga was born in
Mandoul, a
region located in the southern part of
Chad. Ninga was the top goalscorer of the
Gabon Championnat National D1 in the 2013–14 season. He also won two consecutive Gabon Championnat National D1 titles with
Mangasport in the 2013–14 and 2014–15 seasons. In the summer of 2015, Ninga signed for
Ligue 1 club
Montpellier HSC, where he registered 7 goals and 4
assists in 26 Ligue 1 matches in his
first season. On 1 October 2016, Ninga scored a
hat-trick for Montpellier against
Dijon in the 3–3 Ligue 1 away draw. On 8 August 2019, Ninga joined Ligue 1 club
Angers SCO by signing a three-year contract. On 22 September 2019, he came on as a substitute in the 69th minute and scored a hat-trick (and his first Ligue 1 goal for Angers) in the 4–1 Ligue 1 home win over
Saint-Étienne to enable Angers to take provisional second place in the Ligue 1 table. On 27 August 2020, he went to
Sivasspor on loan.
Anorthosis Famagusta On 12 July 2022, Ninga signed with
Cypriot First Division club
Anorthosis Famagusta on a two-year contract until 2024. On 4 July 2023, he was announced by the management of Anorthosis that he had left the club. ==Career statistics==