You nailed it with the HR departments. I'm a manager at a large company and I've done a lot of hiring. Whenever I open a rec, it's always a fight with HR to lim

You nailed it with the HR departments. I'm a manager at a large company and I've done a lot of hiring. Whenever I open a rec, it's always a fight with HR to limit the scope of the filter they use to screen out candidates. They always want a list of 4+ skills with number of years experience to include in any job ad that they can confirm an applicant has before forwarding me the resume. I mostly want to see code that a candidate has written, regardless of language. It took me a lot of arguing/debating, but I figured out that they can (be forced to) handle ORs in the requirement, so my ads now ask for 2-4 (depending on whether it's a senior position) years of cumulative experience in any of C, C++, C#, Java, JavaScript, Python, Go, Haskell, Rust, ML, D or OCaml. But there are a lot of managers that won't bother to fight with HR for a month to avoid giving HR the simple filters that they seem to crave, so they end up with only candidates that have experience using the languages to be used in the position.