I've been in your situation. What worked for me is I just hacked on fun personal projects. Like "hmm, that's a new API, let's try it out". I did it for fun,

I've been in your situation. What worked for me is I just hacked on fun personal projects. Like "hmm, that's a new API, let's try it out". I did it for fun, not to achieve a larger goal. And gradually ideas would pop up, like "now that works, I wonder what if I also combined it with this..." and after a few months larger ideas started coalescing. Given that you've had some success, you probably should look for something that resonates more strongly as "you're passionate about it" vs. "it can make money". And once you have an idea that could develop into a real product, all your experience starting a company becomes highly valuable. Don't just be a code monkey for someone else :)