alt Hacker NewsYou're describing levels. If your range is so wide the top of the range is double the bottom of the range, you're hiring at multiple levels, and you should just say that. You should also have more detailed descriptions that help you and candidates differentiate what those levels are.
More broadly than that -- it's not that you need to pay everyone the same, it's that you need clear structure around how your pay works.
An example that became a problem with one previous employer was that they kept saying "performance" was their only determining factor for pay, after it had come out that exactly one person on our team had been offered bonuses as a performance incentive.
It's not actually performance-based if you have different and better reward structures, or if you can't/won't explain why gaps exist.
It's mainly specialties, not just levels. Are you a graphic designer that can also build your designs for the web? Were you previously consulting for our largest customer? Do you speak Welsh for our important client in Pembroke? Did you previously work in tech stack X and want to get back to it, and could lead our effort into that market? I'll pay more for these even if they come in at the same grade. Pay is very subjective, it is a prediction about the value an employee can or does bring balanced against their next best option.