[frogjerk]

They do and they are extremely well paid. SpaceX gets the best engineers from American engineering schools and Musk has to pay them a lot to keep them. The other space companies are constantly trying to steal SpaceX engineers cause they are so darn good and SpaceX simply dominates.

So why the need for a LARGE amount of H1-Bs then?

[SmokingJoe]

Actually Musk has been advocating for a revamp of the H1B procedure, to remove the corruption and the sleaze.
Musk wants the best engineers on that planet, but of course he takes the bast from American universities first which is far easier.