In 2018 he appeared in eleven games compiling twenty tackles between linebacker and special teams.
In 2019 he contributed in all twelve games Rutgers played starting ten of them at weak-side linebacker.
[citation needed] He was named as a semifinalists for the Butkus Award and earned First-team All-Big Ten from the media and second-team from the coaches.
He finished the 2021 season named third-team all Big Ten even though he missed multiple games due to injury.
[15] Fatukasi signed with the Los Angeles Rams practice squad on October 11, 2023.
[18] On December 4, 2024, Fatukasi signed with the St. Louis Battlehawks of the United Football League (UFL).