I'm an older, successful dev in Chicago. I recently corresponded w/ a local startup CEO on linkedin. My skillset seemed to be a good fit for the role, but their stated top salary would be a 20K pay cut for me. So I ran a quick estimate, based on expected exit and expected dilution figures that I found on the internet (I know, grain of salt...), added a risk premium for myself, and found that I would want about 7% equity, in order to be interested. They said no, of course.
My point is that (some) startups can't or won't pay for the technical skills they want. And that's their problem, not ours.