Perhaps, I don't consider them shitty myself but palates differ. Is engineering nirvana a place where tasks are such that any can been done by a junior engineer, and the concept of engineering skill developed through experience is non-existent?

You can't give a junior tasks that require experience and nuance that have been acquired over years of development. If you babysit them, then perhaps but then what is the point? By it's nature "nuance" is something hard to describe concretely but as someone who has mentored a fair few juniors most of them don't have it. AI generally doesn't have it either. Juniors need tasks at the boundary of their capability, but not far beyond to be able to progress. Simply allowing them to make a mess of a difficult project is not a good way to get there.

There is such a thing as software engineering skill and it is not domain knowledge, nor knowledge of a specific codebase. It is good taste, an abstract ability to create/identify good solutions to a difficult problem.

I work on low(ish) latency trading systems in FX. FIX is the standard communication protocol and familiarity with it is essential for me. Here you can look up the standard message types and tag values: https://fiximate.fixtrading.org/

They also have docs for the standard message flows you can expect during trading. I use it regularly.

Websockets can operate outside the request/response model used in this long polling example, and allow you to stream data continuously. They're also a lot more efficient in terms of framing and connections if there are a lot of individual pieces of data to push as you don't need to spin a up a connection + request for each bit.

This might be something I'll end up buying, I've got a pair of xm4s and they're beyond irritating. There's no way to permanently disable speak-to-chat so every time I clear my throat the music pauses. It constantly re-enables if you touch the side whilst taking them off or picking them up, or also possibly for no reason at all. I've read dozens of complaints about this and I've just about had it with them.

/rant