I am employed as a cybersecurity consultant meaning most of the cybersecurity related things I have been involved with are under NDA or confidentiality agreements. Some of the public things I have worked on are listed below:

Challenges

Hacky Holidays Challenges, December 2020
Hacky Holidays Space Race, July 2021

I am “jhewittDOTnet #205509” on HackTheBox.eu. I haven't taken part in any challenges here since 2019.

Bug Bounties

Badly implemented CSRF protection