There's a whole class of engineers were completely invisible to most companies, even if they are in the same "local market" [0][1] (Some use the term "dark matter devs" but I know it has another meaning [2]). These guys tend to fly under the radar quite a bit. If you are in a tier 2 market or company, your chances of attracting one are close to nil. Because they are extremely valuable, they don't interview a lot and tend to hop between companies where they know people (or get fast tracked internally).
FAANG companies have internship pipelines, with bonus for returning interns. These guys are off the market years before they even graduate.
[0] https://blog.pragmaticengineer.com/software-engineering-sala...
[1] http://danluu.com/bimodal-compensation/
[2] https://www.hanselman.com/blog/dark-matter-developers-the-un...