Xavier Nuñez was raised in West Hartford, Connecticut where he began dancing at The Hartt School. At the age of 16, he moved away from home and continued his training at the International Ballet Academy in Cary, NC where he was coached by Miguel Campaneria. In 2011, he was awarded the silver medal at the World Ballet Competition in the professional category in Orlando, FL. The next year, he was accepted into American Ballet Theatre's Studio Company under the direction of ABT's Artistic Director Kevin McKenzie and Jacqueline Kennedy Onassis School Principal Franco De Vita. During this time he was invited to perform in the Rencontres Jeune Ballet Gala, hosted by Ecole Supérieure de Danse de Cannes in Cannes, France, dancing Balanchine's Tarantella. He also performed soloist roles in Jerusalem Divertissement, choreography by Raymond Lukens, at the Premio Roma Jia Ruskaja Gala in Rome, Italy, as well as in New York City.