You're right, there's many qualified applicants in that pool! These aren't singular positions, but evergreen positions we're consistently hiring for every month.
The reason I don't vary the job descriptions is because I would rather start with an excellent candidate and customize the position to match them than to start with an excellent job description and look for someone to match it. The person is the important part, not the job description.
The reason for the junior position is because some of the most talented people are overly humble and don't think they are qualified to apply, but are more willing when they see a junior position is available.
The reason I don't vary the job descriptions is because I would rather start with an excellent candidate and customize the position to match them than to start with an excellent job description and look for someone to match it. The person is the important part, not the job description.
The reason for the junior position is because some of the most talented people are overly humble and don't think they are qualified to apply, but are more willing when they see a junior position is available.