On 11 April, he played his first game as a professional, starting in a 1–1 away draw against Real Zaragoza in the Segunda División.

[7] Meré appeared in five matches for the first team during the campaign, as they returned to La Liga after a three-year absence.

[8] Meré contributed 25 appearances during 2015–16, overcoming Bernardo Espinosa (who was sidelined due to an injury), Igor Lichnovsky and Ognjen Vranješ as his side avoided relegation in the last matchday.

[16] Meré returned to Spain and its top flight in January 2023, on loan to Cádiz CF until 30 June.

In 2012 he appeared for the former at the Mexico Cup of Nations,[18] and was part of the under-19 squad who won the UEFA European Championship in 2015;[19] earlier in that year, aged only 18, he earned his first cap for the under-21 team, in a 4–0 win over Belarus.