[2] Ongenda attended the Southwest Christian Academy at Little Rock, Arkansas, averaging 14 points, 12 rebounds, five blocks and three assists for the Lions during his senior season, earning a 2019 NACA All-American selection.
[2] Ongenda played college basketball at DePaul, averaging 5.6 points, 3.7 rebounds, and 1.6 blocks in 18.8 minutes while shooting at a 52.9 percent clip.
[2][3] In his senior season, he appeared in just eight games after missing three months due to a wrist injury.
[7] In May 2024, Ongenda joined the Scarborough Shooting Stars of the Canadian Elite Basketball League.
[9] The son of Francois and Senga Ongenda, he has a brother, Andre, and three sisters, Esther, Cynthia and Lillianne.