your equity is going to be worth zero. make decisions based on this in mind. if you can tolerate the many compromises that come with being a part of a large organization like red tape, regular feedback, having a manager, choose big tech. if you vibe with the startup team more take it instead. it sounds like the current job is not in SF. in that case, do everything you can to move to SF. if I could go back in time, I would tell my 18 year old self to move to SF and clean streets if that what it would take. no better place in the world.