Most companies, if not nearly all of them, are just really bad at hiring above "entry-level" in general. The practice of pushing hiring through HR teams and recruiters often leads to the job posting being weird catch-all abstractions because a huge funnel brings in lots of resumes, which makes the HR teams look busy.
Really, postings should be astoundingly specific --- literally, "This is exactly what we are looking for and the problem we want to solve. Prove to us you can solve that problem." Generalist hiring teams are usually unable to get that specific, which is why personal references and recommendations are very valuable. The number of applicants you get should be a good sign that your posting is too general or just right. Positions above the junior level should have significantly less applicants. If not, then you can probably simply hire a junior level.
Really, postings should be astoundingly specific --- literally, "This is exactly what we are looking for and the problem we want to solve. Prove to us you can solve that problem." Generalist hiring teams are usually unable to get that specific, which is why personal references and recommendations are very valuable. The number of applicants you get should be a good sign that your posting is too general or just right. Positions above the junior level should have significantly less applicants. If not, then you can probably simply hire a junior level.