Ask HN: Joining Big Tech in One’s 40s

Hi HN — I'm 43, and at a bit of a crossroads. I sold my share in a company last year and have been taking time off to figure out my next move, and while I've mostly done startups my whole career, I am considering going for a job at a big tech company (FAANG/Lyft/Stripe/etc.). Does anyone have any experience doing this? I can still keep up coding, but should I do that, or try for management? What skills should I brush up on particularly? Mostly, I am a bit fed up with the stress and uncertainty of startups and looking for something more stable, at least for a while.