PostDoc salaries in BayArea Universities are 1/2 or less of what a junior engineer makes. You can literally consult the tables at https://www.hcd.ca.gov/grants-funding/income-limits/state-an... that a NIH postdoc would pay you an extremely low - low income. Other countries like Germany or Switzerland at least pay somewhat decently (Germany 3x above media income).

I got an offers to work on several really cool projects, but the pay is at poverty level basically.