[mdorazio]

For tech work, you can use H1B salary data (from somewhere like http://h1bdata.info/) as a minimum level for a position. Scale up by some percentage (10-20% in my experience) to get the median for what US citizens are likely making in the same position.

[vostok]

The problem is that this only includes base salary.

[mdorazio]

Yes, you're right. But base salary is the only reliable number to use for comparisons. If we get into things like startup stock options, value is effectively zero on a probability scale. Monetary bonuses are paid out based on all kinds of factors that may or may not come to pass, and have their own taxes associated with them. The only reliable extra comp I can think of would be RSUs and similar at large tech companies, but those are already fairly well known.

[vostok]

In my industry bonuses are as reliable as public company RSUs. To my knowledge, there is less public information on RSU grants and bonuses so I am puzzled by your last sentence.

[mdorazio]

Where have you looked? For example, a quick search on Quora will tell you the range of RSUs handed out to employees at Google at various levels.