The 15 year-old, known as Jere, will join Barca's Cadet A team next season and live at the La Masia complex.
Jere is an attacking midfielder and Barca believe he can develop into a first team player.
He follows Barca B's Rafa Mujica, who joined the giants two years ago from Las Palmas. Mujica joined Cornella in January on-loan and has impressed in Segunda B.
At Barca, the Cadet A team is coached by Carles Martínez and Pol Planas.