[void_mint]

I've never actually found that to be enforced. None of my jobs have shared a tech stack, all of them have included such language. YMMV of course.

[oblio]

They don't enforce the number of years, but they could ask you quite deep questions about the language.

Even if you're a senior Python/Javascript developer, with experience in C# in the past, etc., if they start grilling you about Ruby, you probably won't prove that you're as equally productive as a similarly smart dev that is an actual senior Ruby dev.

[void_mint]

I think your statement implies that you and I do not agree at a very fundamental level.

[oblio]

I'm saying that the world is a big place.