Born in Alicante but raised in Elche, also in the Valencian Community, Parras only played football at regional level.[1] He started his managerial career at the age of just 16, coaching ACD Caja de Elche's youth sides.[2]
On 13 August 2015, following a short spell as an interim after Óscar Cano's resignation,[3] Parras was named manager of the reserves.[4] On 29 April 2017, he was promoted to the first team in place of the fired Alberto Toril.[5]
In June 2019, Parras was hired by CD Alcoyano in the Tercera División.[9] He won all ten of his first fixtures, equalling a record in the history of Group VI of the league,[10] and subsequently led the club to two consecutive promotions to Primera Federación.
On 14 November 2024, Parras was sacked by Alcoyano after more than five years in charge.[11]
^ abTormo, Jerónimo (29 April 2017). "Parras, del Caja de Elche al Elche CF" [Parras, from Caja de Elche to Elche CF] (in Spanish). Elche Directo. Retrieved 7 May 2017.