Yes, but don't forget that you are expected to progress from the lower paid job to the higher paid one, so it should be no surprise that the respective job desc

Yes, but don't forget that you are expected to progress from the lower paid job to the higher paid one, so it should be no surprise that the respective job descriptions will be different for the junior and senior candidates respectively. You have to learn to be a good practitioner before you can progress to a leadership role. The junior-role skills are omitted from the senior role, not because they are no longer required, but because it is taken as read that the senior candidate has already acquired them.