Early career During his first season with FUS Rabat, he was the runner-up of the 2015 Throne cup after losing the final against
Olympique de Khouribga. On 15 February 2015, he scored his first goal for the team in a 3–1 victory against
Wydad AC. On 3 March, he scored his first continental goal in a 1–1 draw against
UMS de Loum.
Dijon After four seasons, he joined
Dijon in
Ligue 1. He made his professional debut with Dijon in a 4–0 win over
Nice on 25 August 2018, scoring the first goal for his side on his debut.
Rennes On 14 August 2020, Aguerd signed a contract with Ligue 1 team Rennes from Dijon for an undisclosed fee believed to be between €4m and €5m. He scored his first goal for the club in a
friendly against Nice; the game ended in a 3–2 loss. On 13 September 2020, Aguerd scored his first league goal in a 4–2 victory against
Nîmes. On 17 May 2021, He was placed 11th place in the
Prix Marc-Vivien Foé as the best player who represents an African national football team in
Ligue 1. On 19 August 2021, Aguerd scored a header, which marked his first European goal, in a 2–0 victory against
Rosenborg. A week later, Aguerd scored again in the second leg against Rosenborg in the
2021–22 UEFA Europa Conference League play-off round. On 16 May 2022, Aguerd was placed 3rd as the best African player in
Ligue 1 for the
Prix Marc-Vivien Foé.
West Ham United in 2023. In June 2022, Aguerd signed for
West Ham United on a five-year contract for a fee of £30 million. His fee was the fourth-highest paid by West Ham after those paid for
Sébastien Haller,
Felipe Anderson and
Kurt Zouma. On 16 July, Aguerd made his debut for the Hammers in a friendly against
Reading, playing a total of 63 minutes of a 1–1 draw at the
Madejski Stadium. In his second game, a pre-season friendly against
Rangers on 19 July, Aguerd injured his ankle which required surgery. On 19 October, Aguerd returned to training with the team three months after his injury. He made his competitive West Ham United debut on 27 October in a
Europa Conference League game against
Silkeborg, which West Ham won 1–0. On 2 April, Aguerd scored his first Premier League goal in the home encounter against
Southampton, which ended in a 1–0 victory. On 7 June, Aguerd won his first major trophy for the club the
2022–23 UEFA Europa Conference League against
Fiorentina, which ended in a 2–1 victory. He left the club in September 2025. He played 61 games in all competitions in his three seasons with West Ham.
Loan to Real Sociedad On 30 August 2024, Aguerd was loaned to
La Liga club
Real Sociedad for the 2024–25 season.
Marseille On 1 September 2025, Aguerd returned to
Ligue 1, as he signed a contract with
Marseille until 2030 for a fee reported to be "around €23 million". ==International career==