He played college football at Oregon State in 2009 and 2010 before transferring to Brigham Young in 2012 and led the nation in tackles his final season in 2013.

He served a two-year Mormon mission to Guatemala City Central after high school.

Unga was signed by the New York Giants on December 23, 2014, as a member of the practice squad, up until that point he spent the season rehabbing a knee injury.

[4] It was announced that Unga will be a Defensive administrative assistant at Utah State University beginning for the 2017 football season.

He is the cousin of former NFL running backs Harvey Unga, Reno Mahe, and Naufahu Tahi.