I was hiring for a small local company with no reputation, boring work, and mediocre benefits. This company was about 60 miles out from Chicago in a small town.
We got over 100 applicants for every software position. We didn't even pay for ads, just put stuff on the free sites.
We hardly hired anyone, but the deluge of applications allowed us to low-ball pay and be extremely selective.
The worst kept secret in tech hiring is that everyone knows it pays well and hundreds of thousands are clamoring for open positions. They are "unqualified" because nobody will train them.