He completed his primary and secondary studies at Colegio Marín, in San Isidro, Buenos Aires Province, Argentina.

Nicolás Riera is very close with his Casi Ángeles co–stars Mariana Espósito, Gastón Dalmau, Juan Pedro Lanzani, Rocío Igarzábal and María Eugenia Suárez.

From the end of 2013 to 2014 Together with Catherine Fulop, Rocío Igarzábal and Gabriel Corrado he starred in the television series Taxxi, amores cruzados broadcast by Telefe.

In 2017 he joined the cast of the Pol-ka television series, Las Estrellas (telenovela) broadcast by Canal 13 with Marcela Kloosterboer, Violeta Urtizberea, Celeste Cid, Gonzalo Valenzuela, Luciano Castro, Nicolás Francella, Natalie Pérez and Justina Bustos.

In 2018 he was part of the main cast of the series Millennials broadcast by Net TV with Noelia Marzol, Laura Laprida, Matías Mayer, Juan Manuel Guilera and Johanna Francella.