Born in Tarragona, Catalonia, Aleix began his studies at the official Artemis dance center in Tarragona. In 2001 he joined the Institut del Teatre of Barcelona and in 2003, after receiving a scholarship in the International Roseta Mauri Competition, moved to the Royal Professional Dance Conservatory in Madrid.
In 2005 he participated as a soloist in the production Blancanieves, by Ricardo Cué, with Tamara Rojo as a guest dancer. In 2006, he won the first prize in the Castellón Dance Competition and got a scholarship to the Nederlands Dans Theater II where he joined as an apprentice. In 2006 he worked with the Nafas Dance Company, directed by Patrick de Bana. Then, in September of that same year, he joined the National Dance Company 2 and in the same year he joined the National Dance Company II under the direction of Nacho Duato. Afterwards, he joined the National Dance Company.
In 2013 he is promoted to soloist under the direction of José Carlos Martínez. Since then he has danced outstanding roles in pieces by different choreographers such as William Forsythe, Jirí Kylián, Mats Ek, Johan Inger, Nacho Duato, Ohad Naharin, Itzik Galili, Marcos Morau, Juan Arques, Sharon Fridman, etc ...
In 2013 he premiered the role of Romeo in Romeo & Julieta, by Goyo Montero. As a choreographer, he highlights his piece SelF, with which he wins the first prize of the "Emerging Dancer" of the English National Ballet at Slader's Wells in London and other pieces for international Galas such as CaminO or NinU.
Since 2010 he teaches different Duato workshops, and his own works. In September 2018 he began his career as a freelance and won the First Prize after the premiere of his work "ExiliO" with the American company Milwaukee Ballet in "Génesis Coreographic Competition" in February 2019.