[1] He moved to the United States to attend College Park High School in Pleasant Hill, California.

He recorded 61 tackles, 7.0 sacks, one forced fumble, and two blocked kicks in 2019, earning Bay 6 Conference Defensive Player of the Year honors.

[2][4][5] In the COVID-19 shortened 2020 season, Mauga-Clements played in all eight games, primarily on special teams, and made one tackle.

He played in all 12 games, starting two, during the 2022 season, accumulating 39 tackles, one sack, and one forced fumble.

[6][7] He was selected by the Edmonton Elks with the first overall pick in the 2024 CFL global draft.