Even full stack listings come with a list of technologies that the candidate must have deep knowledge of.

> We got rid of roles... DBA's, QA teams, Sysadmins, then front and back end.

On a first approximation, those roles were all wrong. If your people don't wear many of those hats at the same time, they won't be able to create software.

But yeah, we did get rid of roles. And still require people to be specialized to the point it's close to impossible to match the requirements of a random job.