I can tell you that Microsoft (and I'm sure the same holds true for Google and others) paid everyone the same, regardless of their visa process. Your financial

I can tell you that Microsoft (and I'm sure the same holds true for Google and others) paid everyone the same, regardless of their visa process. Your financial package negotiation process was completely separate from your immigration status. Companies like Microsoft and Google sponsors a lot of visas because they try to find the best engineers, wherever they may be and then get them here.