As a child, Feliciano was more interested in designing and playing video games and basketball than in football.

In the early 2000s, Jon and his family moved to Davie, Florida where he eventually enrolled at Western High School, playing basketball and football.

Throughout his adolescence, Feliciano’s mother’s battle with cancer, spotty employment, and his brother’s health challenges caused a great deal of financial and emotional strain on the family.

In 2008, his mother returned to New York while Feliciano willingly remained in Davie to complete his high school career.

Encouraged by his best friend Sean Cole and accompanied by his coach Rashad West, Feliciano attended the 2008 University of Miami spring scrimmage with his highlight tape in hand.

Catching the eye of coach Tommie Robinson, he was given a scholarship to play for the University of Miami.

He made his final collegiate career start in the ‘Duck Commander Independence Bowl’ against South Carolina, helping lead the Hurricane offense to 422 total yards.

[8] In 2018, Feliciano played in 13 games, starting four at left guard in place of an injured Kelechi Osemele.

After suffering a shoulder injury and torn pectoral muscle, Feliciano's 2020 season started when activated on October 27.

Feliciano earned his second Pro Bowl ballot mention and was the Bills' 2020 Ed Block Courage Award recipient.