NASA Ames is about it. Maybe a banking regulator dealing with WF?
All the PPs saying get a job, your niece is probably a decade or two younger than OP, and ageism is FIERCE in the Bay Area and tech scenes. Last in, first out position if you can even get hired. If you have some excellence (like you are DOJ antitrust attorney, FB or Google may want to hire you, or you work at a National Lab and have sublime tech skills, patents, etc), you can maybe get a Greybeard(TM) position.
And they aren’t hiring expensive old people now, many are laying off in fact.
I would only go if I can land a job with FB, Apple, Google, or Microsoft.