Bruijn is a youth exponent from Ajax. He made his professional debut with Jong Ajax on 6 November 2015 in an Eerste Divisie game against MVV Maastricht replacing Milan Vissie after 75 minutes.[3] After suffering several injuries, he played one match for Jong Ajax in the 2015–16 season.
Heerenveen
In May 2016, Bruijn signed a one-year deal with SC Heerenveen.[4]
Loan to NEC
On 31 January 2019, it was announced that Bruijn was sent on loan to NEC Nijmegen for the remainder of the season.[5] A day later, he made his debut in the 4–1 won home win against Jong FC Utrecht.[6] On 23 February, he scored his first goal for NEC in the 5–0 home win over Almere City.[7] He made an impression during his loan period, where he made 16 appearances and scored twice.[8]
NEC
After barely playing after his return to Heerenveen, he made a permanent move to NEC in the summer of 2020. He signed a three-year contract in Nijmegen.[9] There, he immediately became a starter, in a two-man midfield where Édgar Barreto, Javier Vet and Dirk Proper also fought for playing time. In the absence of Rens van Eijden, Bruijn was team captain of the club.[10] On 23 May 2021, Bruijn won promotion with NEC to the Eredivisie, by beating NAC Breda 2–1 in the final of the play-offs. In the play-offs that season, Bruijn had been an important factor, scoring a goal and providing two assists.[11]