Zachary offer a great resource in his post. I would also add that AngelList provides an interesting data visualization tool that allows a person to examine salary and equity data by location and position.
The data below shows how the distribution of equity deals pans out.
Manager Engineer Equity (All Locations)
QA Engineer Equity (All Locations)
If you need help negotiating your stock options or even just getting your employment agreement reviewed by a startup attorney who’s seen 100’s of these, feel free to check out. We’re a on-demand legal marketplace that connects employees to highly vetted employment attorney on a flat-fee basis. Drop me a message if you have any more questions.
Best of luck with the job!