Soler began his professional career at Valencia, making 226 appearances, scoring 36 goals and winning the Copa del Rey in 2019.

Born in Valencia, Soler was first introduced to football by taking shots at half-time at the age of four during games for Bonrepòs, his brother's team.

[6] The following 12 March he renewed his contract for two more years with the option of as many more,[7] and was an unused substitute in the main squad's 2–1 home win against Athletic Bilbao for the season's UEFA Europa League.

[8] On 10 December 2016 Soler made his first team – and La Liga – debut, replacing Mario Suárez in a 3–2 loss against Real Sociedad at the Anoeta Stadium.

[9] He scored his first goal in the category the following 21 January, netting the first in a 2–0 Valencian Community derby win against Villarreal at the Estadio de la Cerámica.

[13][14] He played seven games in the season's Copa del Rey as Valencia won their first honour for 11 years, and assisted Rodrigo's winner in the 2–1 final victory over Barcelona on 25 May 2019.

[24] Soler scored his first goal for PSG on 25 October 2022, concluding a 7–2 Champions League win against Maccabi Haifa at the Parc des Princes.

[28] During the 2023–24 season, Soler was often a substitute under compatriot manager Luis Enrique, who had played him fairly regularly in the Spain national team.