> I have several H1B coworkers in the US who barely speak intelligible English, and who barely understand normal conversation let alone anything technical.

English fluency is certainly not a requirement for fluency in any technical field. Perhaps you mean that they cannot understand _your_ descriptions of technical topics, though

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JCTheDenthog 5 hours ago | parent [-]

Seeing as my Russian, Ukrainian, Belarusian, Mexican, French Canadian, and Brazilian coworkers don't seem to have these issues with me I don't think the issue is with my explanations.

	▲	pastel8739 an hour ago \| parent \| next [-]
		Sorry I didn’t mean you specifically, rather you as an English speaker
	▲	sometimes_all 4 hours ago \| parent \| prev [-]
		Funny, when I was in the US, my Russian, Ukrainian, Chinese, Mexican, French, British, and 99% of the American coworkers had absolutely zero issues with my Indian accent, except that one American guy who would ask me to keep repeating even though the rest of the room had already understood and processed what I said. The problem likely lies deeper than just the accents; and by the way, the English requirement (including a verbal test) is already set in place for most of the workers. The regular halfway-decent ones will likely already have TOEFL scores hovering around at minimum the high 100s, and in the non-university hiring pipelines I have seen, the English/ESL tests seem to be common if you are not from an English-speaking country, so if you are seeing people where nobody can understand what they are saying, you need to take a better look at your employer's hiring practices.