David Moa is from nearby San Diego, California where he starred on both the offensive and defensive lines for Kearny High School. As a senior, he was named All-Western League in both his junior and senior seasons. Following his prep career, Moa committed to play at Boise State of the Mountain West Conference.
As freshman, Moa had to wait a little extra time to see the field as he was selected to redshirt. The following year, he saw playing time in five games where recorded just three tackles and a lone sack.
Entering the 2016 season, Moa won a starting job and went on to start all 13 games.