Based on your being in the Bay Area, I feel your problem may actually be competition, and you should apply to employers that don't look as trendy, don't offer a

Based on your being in the Bay Area, I feel your problem may actually be competition, and you should apply to employers that don't look as trendy, don't offer as many perks, or are earlier stage startups and that are more likely to be a little more desperate. For onsites employers will invite often a bunch of people (give themselves opportunities) and they always, always have the secret hope to get someone who is really overqualified for the job. In a hot market it's likelier they do. Otherwise, often in onsites the questions asked will be more free-form (including "do you have any questions") and it's expected that the candidate will show curiosity and knowledge outside their narrow range of expertise. For example, if asked something you don't know, say "I don't know, but if I had to do it at work, I would find out through doing X". (Something that has also worked for me is straight up asking the interviewer. "I don't remember if a left join or inner join is better in that case though. For my personal education, which do you think?") You need to look like a self-starter for most onsites, and that behavioral test is more important than the answers to the exact questions. Interviewers tend to telegraph (especially in person) the answers they want. So if you're asked how you would design a component, and the interviewer looks impatient and says "hmmm, what about X though?" or is constantly asking you follow up questions, maybe fidgeting, it means they have a specific answer in mind you haven't given. And in my experience in that case, you can't just stick to your previous line of thought when that happens. You can either "throw things out and see what sticks", where you start detailing the suggestion that generates the best nonverbal feedback, or you can refuse to play the game and say look, I'm feeling I would do X because of my experience with Y. It looks like you have a specific answer in mind that was maybe informed by a different experience. Do you want to share it and we can talk about my thought process?" (This only works for open ended questions)