This isn't what I said. Even a high school student can write programs in OCaml, it doesn't require any degree and is no harder than other languages.
My point is that if you want to work at Meta, Jane Street, Standard Chartered, or other selective companies that use Haskell/OCaml, just having "Haskell" listed on your resume is probably not enough to be considered for interviews. You will need other skills to distinguish you from other candidates. Could be a PhD, or being good at grinding leetcode problems, a recognized expertise, a prestigious degree, domain specific knowledge and so on.
I suspect companies using these languages tend to be more selective on average than those working on more common tech (e.g. php, js).
I agree that listing Haskell or OCaml on one's CV isn't enough. I think this holds the same way for other languages, at least in the company where I interview.
To the people who are interested in solving problems using functional languages. You should apply, even if you think you are not part of the "selective" in-group like PhD or language expertise
That being said, expertise in FP can open the door to some very interesting jobs. I remember when I was a student (20+ years ago), the word was that FP was pretty much useless in the real world. While it's true that it's more niche than C++/JS, some teams use it, and it can give you an edge.
One data point - I get paid to solve problems by writing OCaml code. I am a self-taught programmer with a linguistics undergrad degree.
I hope this helps others who are interested, but are feeling insecure because of the stereotype that one needs a PhD to write programs in a particular language.
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