He made his senior debut with the reserves on 24 August 2014, starting in a 2–0 away win against CD Corellano in the Tercera División.
[5] His sole call-up to the first team in La Liga was for the 1–0 win at Real Valladolid the following 23 August, taking Jasper Cillessen's place on the bench due to the Dutchman's rib injury.
[6] On 1 July 2019, free agent Ezkieta signed a four-year contract with Athletic Bilbao, with a release clause set at €45 million.
[7] He made his first-team debut on 28 January of the following year, replacing Unai Núñez in the second minute of a 3–3 Copa del Rey last-16 away draw against CD Tenerife, as Iago Herrerín was sent off; the game went to penalties and he saved from Joselu in a 4–2 win.
[9] On 4 July 2022, after spending the previous campaign as a third-choice behind Unai Simón and Julen Agirrezabala, he terminated his contract.