Looking For US Data Set Of Corporate Employee Titles And Job Level

Hi. I’m looking for a data set of employee titles at US companies. Not specific companies and not specific people just generalities. Currently have a record set of a million plus job titles of all varieties from cashier to CEO… However looking to pair these up with job level. Wondering if anything like this exists anywhere. I’ve tried the SAMs database but that’s even messier than the records that I have.

Thanks