Born in Calvià, Balearic Islands, Juan Carlos was a product of Villarreal CF's youth academy.

[1] Previously, he was the undisputed starter for the reserves for three full seasons, starting in all the games he appeared in, including in 2008–09 as they promoted to Segunda División for the first time ever.

On 12 July 2011, Juan Carlos was loaned to Valencian Community neighbours Elche CF in the second tier.

[4] On 8 July 2016, after Alba's relegation, Juan Carlos signed a two-year deal with Real Oviedo also in division two.

[5] Midway through the 2017–18 season he lost his starting spot to Alfonso Herrero, and left the club as his contract expired.