My recommendation (n=1, ymmv) is to keep the job and find open source, non profit, or other "meaningful to you" work to do in your non working time. Maybe even ask for 10-20% time to do some of this work on work time, if your employer is open to it. This job sounds unique and hard to replace with something better, find the meaning elsewhere. Most jobs are not meaningful, they are a means to an end (getting paid).

Would you be happy if you landed somewhere much more challenging but with less work life balance and control over your working arrangements, leading you to regret leaving your current role? Ambition and desire to grow are important [1], but so is being mindful of the hedonic treadmill as it relates to work.

[1] https://en.wikipedia.org/wiki/Drive:_The_Surprising_Truth_Ab...

Keep the job. Why don’t you want to imagine working there for a couple more years? As long as you don’t feel you’re stagnating in terms of skills and personal growth (which is hard to imagine after only two years, the way you describe the company), it’s fine.

The job-hopping culture is bad for software in general, and also bad for personal growth because you don’t get to experience the longer-term results of your technical decisions.

The job market is currently still rather tough, another reason to wait. It’s unclear how long that will take to change, though.

See if some benefits are available - CEO might be amenable. Careers are not summer jobs, they are built year by year, often as the company grows and new niches appear that need paid training. Often paid training has a duty to stay 1-2 years and can be pro-rated because some training = $$$ and they want a degree of permanence. Some people do not know how happy they are - until they are not! Insert shot of Bugs Bunny hammering the point of a 500 pound bomb = CRINGE = Marks bomb DUD - or not...