Lagerbielke played for
AIK,
Sollentuna FK,
Västerås SK,
IF Elfsborg and
Degerfors IF in Sweden. In August 2023, he joined Scottish club
Celtic, by signing a contract until 2028. Lagerbielke made his
Old Firm Derby debut on 3 September 2023, notably winning a goal-cancelling foul to help Celtic to a 1–0 win away to
Rangers. Later that year, on 13 December, he scored his first
UEFA Champions League goal, securing a 2–1 victory over
Feyenoord, to seal his club's first win in 15 matches in that competition, and first home win in ten years. On 27 August 2024, Lagerbielke joined
Twente in the Netherlands on a season-long loan. On 8 July 2025, Lagerbielke departed Celtic to join
Primeira Liga side
S.C. Braga on a permanent deal. == International career ==