Loader began playing rugby at local club
Reading Abbey. At the age of fifteen he joined the academy of
London Irish and on 14 October 2017 made his professional debut in a
EPCR Challenge Cup game against
Edinburgh. Loader represented England during the
2018 Six Nations Under 20s Championship and scored a try in the last round against
Ireland. Later that year Loader was a member of the squad that finished runners up at the
2018 World Rugby Under 20 Championship. On 2 June 2019 he made an appearance for an England XV side in a non-cap friendly against the
Barbarians at
Twickenham Stadium. In May 2022 Loader came off the bench as London Irish were defeated by
Worcester Warriors in the final of the
Premiership Rugby Cup. The following year saw Loader depart the club after they encountered financial issues and in June 2023 it was confirmed that he had joined
Stormers. In February 2025,
Premiership side
Gloucester announced they had signed Loader from the Stormers ahead of the following season. ==Personal life==