I don't know the answer but I'd expect the company needs to value it sufficiently to make it more valuable for them to spend the time doing proper technical wri

I don't know the answer but I'd expect the company needs to value it sufficiently to make it more valuable for them to spend the time doing proper technical writing than not. Usually this is not the case. It's also an easy cop out to tell your manager when the discussion comes, "oh I want to improve my technical writing", "oh I want to improve my presentation skills". Ultimately, if the company is not encouraging that you're better off learning by yourself as an engineer.