On December 6, 2013, Nix signed with agents Todd France and Brian Ayrault. Nix was selected by the
Houston Texans in the third round (83rd overall) of the
2014 NFL draft. On May 16, 2014, he was signed to a $2.85-million contract by the Texans, including a signing bonus of $575,252. Nix underwent a second knee surgery during the off-season and missed workouts as well as most of
training camp. His rookie season prematurely ended after he underwent a third knee surgery on September 24, 2014. He was unable to play any games during his time with Houston. Nix was released by the Texans on September 4, 2015. On September 6, 2015, Nix was claimed off waivers by the
New York Giants. On September 8, 2015, he failed his physical and was waived. On September 9, 2015, Nix was re-signed by the Giants. He was waived again on November 7, 2015. On November 10, 2015, he was re-signed to the Giants'
practice squad. On January 6, 2016, Nix signed a reserve/future contract with the Giants. On September 3, 2016, he was released by the Giants. The
Washington Redskins signed Nix to their practice squad on September 5, 2016. On September 19, 2016, he was released from the practice squad. Nix was signed to the
Jacksonville Jaguars practice squad on October 25, 2016. He signed a reserve/future contract with the Jaguars on January 4, 2017. On May 15, 2017, he was released by the Jaguars. ==Personal life==