Faoliu attended Junípero Serra Catholic High School.

As a senior, he transferred to Mater Dei High School and was named a starter at nose guard.

[2] He tallied 32 tackles (9 for loss), 1.5 sacks and one forced fumble, while receiving All-County honors.

He contributed to a second place in the CIF Southern Section Division 1.

He made 8 tackles (1.5 for loss) and one quarterback hurry against Oregon State University.

As a senior, the football season was reduced to 7 games due to the COVID-19 pandemic.

Faoliu was signed as an undrafted free agent by the Dallas Cowboys after the 2021 NFL draft on May 14.

[14] He was activated on November 6, then waived the following day and re-signed to the practice squad.