On 4 June 2010, after Sestao's relegation, Gómez moved straight into La Liga, joining Athletic Bilbao for two years with an option for a further one or two. He spent most of his first season with the reserves, in the third level.
On 17 October 2010, Gómez made his top flight debut, coming on as a substitute for Gaizka Toquero in the 67th minute of a home match against Real Zaragoza (2–1 win); after only three minutes, however, he himself had to be replaced, being stretchered off after suffering a knee injury.