A versatile midfielder, Farinós was born in Valencia and made his professional debut as an 18-year-old, with hometown's Valencia CF. He was an undisputed starter from 1997 to 2000, helping the Che to the 1999Copa del Rey and Supercopa de España and scoring five La Liga goals in his final season; to finish his career with the club he appeared in the campaign's UEFA Champions League final, a 0–3 loss against Real Madrid. In the summer of 2000, Farinós caught the attention of Serie A's Inter Milan, where he would spend five years without much success. He was out of action for 15 months due to injury, and was only able to pitch in ten league games as his team lost the 2001–02 league title in the last matchday; he did manage, however, to score in a 6–0 home rout of Reggina Calcio on 22 November 2003. On 21 March 2002, Farinós returned to the Mestalla Stadium in the quarter-finals of the UEFA Cup: after Francesco Toldo was sent off, he was the player chosen to replace him in goal in an eventual 1–0 win. Farinós returned to Spain for 2004–05, joining RCD Mallorca initially on loan. He was relatively used during two top flight seasons – mainly in the first, as the Balearic Islands side could only finish 17th. In 2006–07, after being released by Mallorca and having an unsuccessful trial with Charlton Athletic in England, Farinós joined Hércules CF in Segunda División. He was an undisputed starter when healthy, netting 15 times in the league alone in his three seasons combined; in his third year the Alicante club finished in fourth position with 78 points, all-time best without actually promoting. Farinós played nearly 3,000 minutes in 2009–10, scoring six goals in 34 games as Hércules returned to the first division after 13 years. He spent the vast majority of the following campaign, however, sidelined due to injury; on 29 January 2011, in his return to action, as a second-half substitute in a 0–3 home loss against FC Barcelona, he was sent off shortly after two bookable offenses; in his second appearance, at home against Real Zaragoza, he helped the hosts come from behind to win it 2–1, scoring the equaliser ten minutes from time and assistingDavid Trezeguet in the 89th minute-winner. In late June 2011, following Hércules' relegation, 33-year-old Farinós agreed to a one-year contract with Levante UD, making this the fourth major club he represented in the Valencian Community. In December of the following year he returned to Villarreal, with the team in the second level; he contributed with 11 appearances to help the latter return to the top flight after one year out. On 11 February 2014, after another lengthy spell on the sidelines due to injury, now in the Achilles tendon of his right leg Farinós announced his retirement from football.
