On 5 August 2016, Fernández was loaned to fellow third division side Mérida AD.[2] On 31 August 2017, he moved to CF Fuenlabrada in the same category, also in a temporary deal.[3]
Fernández returned to Real Madrid in July 2018, being assigned to the B-team. On 24 July 2019, he returned to Fuenla after agreeing to a permanent one-year deal.[4]
Fernández made his professional debut on 17 August 2019, coming on as a late substitute for José Fran in a 2–0 away defeat of Elche CF.[5] On 10 August of the following year, after featuring sparingly, he signed for third division side CD Badajoz.[6]