On 22 August 2017, Pintor signed his first professional contract with Brest for three years, joining from Bastia.[3] Pintor made his professional debut for Brest on 15 December 2017 in a 4–1 Ligue 2 win over Quevilly-Rouen, at the age of 17.[4]
On 31 August 2018, the last day of the 2018 summer transfer window, Pintor joined Ligue 1 side Lyon on a five-year contract. Brest received transfer fee of €5 million plus €4 million in bonuses and a percentage on resale.[5]
Pintor scored on his Youth League debut in an away victory against Manchester City.[6] He also scored in his second Youth League game against Shaktar Donetsk. He made his first full Lyon debut on 19 October 2018, replacing Memphis Depay during the injury time of a 2–0 win against Nîmes.[citation needed]
On 4 August 2022, Pintor joined Lyon's rival Saint-Étienne on a two-year contract.[7] Although he joined the club for free, Lyon will receive 30% of a future transfer fee.[8]