It's very unlikely that you're going to get hired to learn something new.
And instead it's very likely that you're going to get hired to do something you're already pretty good at.
Everything else doesn't really make a lot of sense for the company that's hiring you.
And the things you're going to learn will usually help you to get even better at the job you're already doing.
So if you want to learn something new, something that helps you to become more independent, something that's not directly liked to what you're already doing, then you're probably going to have to learn it on your own...