Club career
Cubo joined the youth academy of Atlético Madrid in 2016 and worked his way up their youth categories, scoring 32 goals in 25 games for their B-youth side. On 22 February 2024, he signed his first professional contract with the club. He was promoted to their reserves, Atlético Madrileño, in the Primera Federación for the 2025–26 season. On 2 May 2026, he scored on his debut as a substitute with Atlético Madrid, a 2–0 La Liga win over Valencia.
