Only several days after his win at the Giro Ciclistico d'Italia, he joined UAE Team Emirates early, on an initial contract lasting through 2025.

On 25 July in his third race with the team, he placed second in the Prueba Villafranca de Ordizia behind Luis León Sánchez.

He showed promise for the general classification early on, finishing fourth in the first mountain stage, 55 seconds behind the winner Jay Vine.

[17] Ayuso had a slow start to the 2023 season due to tendinitis in his right Achilles, and did not make his debut until the Tour de Romandie in April.

[21] In February 2024, he won the Ardèche Classic in a four-way sprint ahead of Romain Grégoire, Mattias Skjelmose and Felix Gall.

[24] In April, he took part in the Tour of the Basque Country, which saw several of the main favorites abandon following a large crash during the fourth stage.

[25] Sitting in third overall going into the final stage, Ayuso was able to drop race leader Mattias Skjelmose on the last climb, securing the overall victory by a margin of 42 seconds to compatriot Carlos Rodríguez.