Frederik was born in Vejle, Denmark, in 2002 and joined the Mercedes junior team for the 2021 season. After claiming back-to-back Danish Karting Championships in 2013 and 2014, in the Cadet Junior and KFJ classes, and winning the WSK Final Cup in KFJ in 2015, Frederik moved into single seaters the following season in Formula Ford Denmark, finishing P4 with two wins.
For 2017, he switched to the Danish and ADAC F4 categories, finishing runner-up in the former, and remained in the ADAC series for 2018 (finishing P4) while also joining the Italian F4 grid. Frederik progressed to the Formula Regional European Championship with Prema for the following season, taking the title with 13 wins from 24 races. In 2020, he finished fourth in the FIA Formula 3 Championship with three wins.
For 2021, Frederik remained in Formula 3 for a second season, moving from Prema to ART Grand Prix, and finished fourth in the standings with one win and four further podiums. In 2022, Frederik moves up to Formula 2 with ART Grand Prix.