I do not follow. None of those you mentioned are personal hobby projects, they're the same kind of references you can ask software engineer for. I'm regularly asked to provide at least 2-3 contact points from my previous jobs but that's largely insufficient to get the offer and is most usually done only at the end of the hiring process (meaning that it probably does not pose a big factor).
So, what's the deal? Why have we ingrained serious doubts when it comes to software engineering skills? Why a 10+ year experienced SE must go through a process of "proving" the skills through 5-6 interviewing rounds while a 10+ year experienced doctor doesn't?
I don't think this correlates to job regulations as some seem to be suggesting here but I also don't have a better answer myself. It's intriguing to me overall.
So, what's the deal? Why have we ingrained serious doubts when it comes to software engineering skills? Why a 10+ year experienced SE must go through a process of "proving" the skills through 5-6 interviewing rounds while a 10+ year experienced doctor doesn't?
I don't think this correlates to job regulations as some seem to be suggesting here but I also don't have a better answer myself. It's intriguing to me overall.