I interviewed with a series B company a couple of months ago. During the interview with the CTO I proposed a way that could effectively 3X their MAU. They were genuinely impressed by it, and stated they didn't think of that. Like it seemed natural, and I'm considered an expert in this field.
I ended up not getting the job, and not thinking much of it. Fast-forward a couple of months, and it's their new growth strategy. I got no credit for this, and not even a call back. Is there anything I can do?
If you thought your idea is worth money - you should have started signed something with them first.
What exactly is that you think they owe you currently?
You want just to feel important or get some benefits?
If so - are you ready to also share costs and risks?