[1] He played youth football with Sevilla FC, spending several of his first seasons as a senior with the reserves in the Segunda División B.
On 26 January 2013, as both players who split first-choice status in the first team, Diego López and Andrés Palop, were unavailable (the former had been sold to Real Madrid shortly before, the latter was injured), Julián was promoted to the main squad.
[2] He made his La Liga debut two days later, keeping a clean sheet in a 3–0 home win against Granada CF.
[3] On 21 January 2014, Julián was loaned to fellow top-flight side UD Almería until the end of the campaign.
[5] Julián made his debut for the Rojiblancos on 5 December 2014, starting in a 4–3 away win over Real Betis in the round of 32 of the Copa del Rey.