As a true freshman at Michigan, he appeared in one game, the season-opener against Hawaii. As a sophomore, Dwumfour played in nine games, recording four tackles and one sack. He played in all 13 games in his junior year, starting two. He totaled 21 tackles, one interception, and three sacks in the season. As a senior in 2019, Dwumfour played in ten games with two starts, making nine tackles and one sack. He transferred to Rutgers for his final season in 2020. He started eight games at defensive tackle, and made 25 tackles, earning honorable mention All-Big Ten.[3]
Dwumfour was signed by the Houston Texans to the practice squad on October 13.[8] He was activated on December 25, and made his debut in their game against the Los Angeles Chargers, recording a half-sack.[9] He finished the season playing in three games and recording five tackles.[10] He signed a reserve/future contract with the Texans on January 11, 2022.[11]
On October 12, 2022, Dwumfour was placed on injured reserve.[12] He was activated on November 19.[13] He was waived on December 7.[14]
On February 7, 2023, Dwumfour signed a reserve/futures deal with the Cleveland Browns.[16] He was waived on August 10, 2023.[17]
Tennessee Titans
On August 16, 2023, Dwunfour was signed by the Tennessee Titans.[18] He was waived on August 29, 2023, and re-signed to the practice squad.[19][20] He was released on September 19.[21]
Houston Texans (second stint)
On September 27, 2023, Dwumfour was signed to the Texans practice squad.[22] He was released on October 24.
Chicago Bears
On November 21, 2023, Dwumfour was signed to the Chicago Bears practice squad.[23] He signed a reserve/future contract on January 8, 2024.[24] He was waived on August 26, 2024.[25]