Try:
http://www.h1bdata.info/index.php?em=Google&job=Staff+Softwa...
And keep in mind that base salary (what's reported on that page) is usually about half of total compensation. (Bonus and stock being the other half.)
Also this appears to be the H1B database. I'm not sure how H1B salaries compare to the overall average.
H1B salaries are typically lower than average. Why do you think companies spend millions lobbying for more H1Bs? To pay them more than average? :-)
Also, keep in mind Google only has to disclose base salaries for these H1Bs. For a staff engineer, most of the total comp would be in bonus pay and especially RSUs. They can easily be making $400k or more through those means.
As I understand it, H1Bs aren't too bad (transferability is a thing here), but other forms of visas are brutal in this regard.
No, to get a bigger talent pool.
http://www.h1bdata.info/index.php?em=&job=Senior+Software+En...