I mean this in the nicest way possible (I envy your optimism!), but I'm curious how long you've been working as the last 12 years have been an exceptionally good period in tech. My career started in the middle of the dot-com era in the late 90s, so I've been through a few cycles where finding engineering work was hard and people who had crappy jobs were grateful for the income. Those experiences dulled my optimism about the meaningfulness work -- I spent a year in the early 2000s eating ramen and freelancing websites in PHP because I couldn't find a "real" job after the startup I worked for that was going to save the world went bust. Maybe I'm just a cynical old lady at this point, but I do feel emotionally well-prepared for whatever happens next.

I was still in school during the big crash, so you’re right, my experience may be colored by that. But I keep a pad that essentially allows me to be completely without income for at least 6 months without withdrawing from any accounts which incur penalties or are tied to stock market performance. I’ve done freelancing and could spin that back up. It would be harder to land contracts during a rough economy but often people who just fired their staff need short term contracts to keep the lights on and so there’s usually opportunities for something...

You’re right. I don’t know what it’s like to cobble together work during a downturn like that if I were to lose my primary job and be unable to find another. I would likely take the most fulfilling work I could find. Then when times were good I’d resume more fulfilling work. Just like I’ve done through out the time I’ve been in the field so far.

Given that we have been in a 12 year period of one of the largest tech expansions in the history of our industry, I don’t see why it makes any sense to argue that people shouldn’t be seeking fulfilling work now.

It sounds like you have a pretty good idea of who you are and what you want, so I doubt you would have a problem finding meaning in your life even if you hated your job. You're probably not destined for a mid-life crisis like this, and it's not universal by any means.

But there are a lot of folks like OP who were focused hard on getting a job at Google and making boatloads of money and never took the time to figure out what they wanted in life besides a high paying job. For people in that position, I would say keep the unfulfilling job, let it be unfulfilling until you know what drives you, and figure out what you want in life. Then you'll be in a position to decide whether to seek meaning at work or not. I personally chose to find it outside of work, which has made the career bumps a lot easier to handle because my identity isn't wrapped up in my job.