The French newspaper
Le Parisien described Ongenda as the best of a generation of French footballers which also included
Kingsley Coman,
Anthony Martial and
Adrien Rabiot. Ongenda made his debut for
Paris Saint-Germain on 6 January 2013, in a
Coupe de France 4–3 victory over
Arras. On 3 August 2013, he featured in the
Trophée des Champions against
Bordeaux, coming on for
Javier Pastore in the 73rd minute and scoring the
equaliser eight minutes later as PSG went on to win 2–1. He registered his first
Ligue 1 match at 9 August, in a 1–1 draw at
Montpellier. Ongenda was loaned for the
2014–15 season to fellow league side
Bastia. Upon his return in the
capital, he scored his first Ligue 1 goal on 22 November 2015, in a 2–1 defeat of
Lorient. Ongenda joined Dutch side
Zwolle in January 2017; he only played three games for Zwolle in a five-month period despite being signed for a 3.5-year deal. After playing two games over a two-month period, he again left the club. Ten days later, he made his
Liga I debut in a 2–0 home victory against
Hermannstadt. On 13 January 2020, he signed with Italian
Serie B club
Chievo until the end of the
2019–20 season, with an option to extend the contract until 2022. Ongenda returned to Botoșani in September 2020, after failing to make an impact during his stint in Italy. ==International career==