[mechanical_fish]

Read and discover:

http://www.kalzumeus.com/2014/11/07/doing-business-in-japan/

(I could pull an answer to your question out of this -- hint, search the page for a dollar sign -- but if you're reading "out of curiosity" you should just get some coffee or something and read the whole glorious thing, because the number is useless without the context, and the context is very different from the USA.)

[davidw]

I'd forgotten about that. On the whole, it looks like, despite lower levels of immigration, Japanese engineers do not earn more than their US counterparts, which makes sense: the economy is complex, with a lot of different things factoring into how much people make.