Born in Pamplona, Navarre, Moreno finished his formation with Rayo Vallecano, after spells at CD Tenerife, Atlético Madrid and RSD Alcalá.
[1] He made his senior debut with the reserves on 14 January 2018, playing the last 36 minutes in a 1–0 Tercera División home loss against Getafe CF B. Moreno scored his first senior goals on 29 April 2018, netting a brace in a 2–0 home defeat of AD Colmenar Viejo.
[2] On 2 September 2019, Moreno moved to another reserve team, Valencia CF Mestalla in Segunda División B, on a one-year loan deal.
[4] Moreno scored his first professional goal on 7 November 2020, netting the game's only in a home success over Sporting de Gijón.
He returned to Rayo the following July, but after only two cup appearances, he moved out on loan to SD Amorebieta in the second division on 18 January 2022.