The issue is that every job I’ve had requires learning a bunch of new shit. Rarely am I just transferring over to the same languages or frameworks. Add on that each company decides different design patterns that they want to utilize and has a different interpretation of what REST is and what HTTP status codes are… it’s a pain in the ass to be an expert in any good amount of time. Expert being one that can dive into the true weeds like cryptic memory leaks that require special profiling tools that aren’t documented anywhere - etc. (and able to do this at a moments notice with ease)

Especially if you’re a full stack eng who is constantly swimming over the entire stack and they keep pushing new DBs, new logging tools, etc.

There are commonalities but it is a lot of learning as you go. I used to know Angular pretty well but now I don’t remember it at all. I haven’t even gotten to really ramp on React as much because my company uses it in such a terrible way that it’s clearly not fit for.