Confidence with computers matters far more than qualifications.
We look for people who are comfortable using technology, enjoy working with children and can make learning fun. Reliability counts, as does being happy to run a session on your own once you are trained. Most roles need an Enhanced DBS, which we will help you apply for if you do not already have one, and many need a driver with their own transport, since instructors often travel between schools and venues.
If you have worked with children before, in a school, a club or anywhere else, that helps. If you have not, but you are good with them, say so in your application.