Pinamonti made his senior debut for Inter Milan on 8 December 2016, aged 17, against Sparta Prague in the last match of 2016–17 UEFA Europa League group stage. Pinamonti was selected as a starter by coach Stefano Pioli and delivered a well-received performance, helping Inter to finish their European campaign with a 2–1 win.[4] On 12 February 2017, Pinamonti made his first appearance in Serie A, with Inter winning the match 2–0 against Empoli at San Siro.[5][6] Pinamonti latter dubbed his debut as "indescribable".[7] In the 2016–17 season Pinamonti also won the Primavera title with the U19 youth team.[8]
In the 2017–18 season, Pinamonti became a member of the first team[9][10] but continued to play with Internzionale's U19 team in the UEFA Youth League. He made his season's first appearance on 12 December 2017, playing as a starter in the Coppa Italia match against Serie C club Pordenone.
On 30 June 2019, Pinamonti joined Genoa on loan with an obligation to buy.[13] On 18 September 2020, his contract was bought back by Inter Milan.[14]
Loan to Empoli
On 25 August 2021, Pinamonti joined Empoli on a season-long loan.[15]
Sassuolo
On 11 August 2022, Pinamonti joined Sassuolo on loan with an obligation to buy for a reported fee of €20 million, with a subsequent contract valid until June 2027.[16][17]
On 16 August 2024, Pinamonti returned to Genoa on loan with an option to buy.[18]
Pinamonti captained the Italy U20 side at the 2019 FIFA U-20 World Cup, scoring four goals in six matches and helping the team to reach the semi-finals of the tournament.
In June 2019, Pinamonti was also called up for the 2019 UEFA European Under-21 Championship but was forced to withdraw to a knee injury which occurred during the U-20 World Cup.[19]
Pinamonti made his debut with the Italy U21 team on 6 September 2019, captaining the side in a 4–0 friendly match victory against Moldova.
Pinamonti made his senior team debut on 16 November 2022, in a 3–1 friendly win against Albania.
Personal life
Pinamonti is a lifelong Inter fan and has cited Mauro Icardi as his favourite player and role model.[7]