Jakub Lofek began learning to skate as a five-year-old.[1] He is coached by his mother, Ewa Lofek.[2]
He made his ISU Junior Grand Prix (JGP) debut in August 2019, placing 16th in Courchevel, France. His best JGP result, seventh, came in August 2021, also in Courchevel.
In the 2021–22 season, Lofek won the Polish national junior title and was nominated to represent his country at the 2022 World Junior Championships in Tallinn, Estonia, where he qualified to the final segment.[2]