A youth product of FC Andorra and Lleida Esportiu, Rosas made his senior debut with Atlético Monzón, being loaned to the club on 2 August 2021. On 1 August 2022, after scoring 16 goals for Monzón during the 2021–22 Tercera División RFEF, he renewed with Andorra until 2025 and was loaned to Segunda Federación side Utebo FC.
