When I hire juniors, I try to give them problems that I know they likely won't be able to solve in the interview because I want to see how they think about things. The problem has become that a lot of kids coming out of college have done little more than memorize Leetcode problems and outsourced classwork to AI. I've also seen less and less passion for the career as the years go by (ie. less computer nerds).
Unless the company is doing something that requires almost no special domain knowledge, it's almost inevitable that it's going to take a good while for them to on-board. For us, it usually takes about year to get them to the point that they can contribute without some form of handholding. However, that also mostly holds true for seniors coming to us from other industries.
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