The missing step can be that in a large company HR needs to assign a grade/job type to the role before they advertise it and these are standardised typically wi

The missing step can be that in a large company HR needs to assign a grade/job type to the role before they advertise it and these are standardised typically with respect to both education qualification and years of experience. The combination of the hiring managers spec and the HR grade/type definition is what gets posted. This is usually the cause of a job asking for pointless qualifications or more years of experience than a given technology has existed.