Felix, a goalkeeper, was a trainee at Exeter City between 2016 and 2018 having been on Fulham's books when at school. After a year as a professional Felix was released in May 2019.

In February 2023 Felix was in the British Army under-23 team facing the Royal Navy at Portsmouth. He also plays for the Royal Engineers.  

Felix's brother Magnus is also a goalkeeper and has played for Fulham, Carlisle and Oldham.