This resonates deeply. I'm actually doing exactly this—though solo rather than with a team. Left corporate to build a scheduling tool (think Calendly alternative) that's launching on Product Hunt soon.
A few observations from this journey:
1. The hardest part isn't building—it's finding the discipline to ship something "good enough" rather than perfect. Corporate trained me to over-polish.
2. Distribution is BRUTAL. You can build something genuinely useful, but without an audience or marketing chops, you're shouting into the void. I'm learning this the hard way.
3. The skillset mismatch is real. Big tech teaches you to work within massive systems with established users. Indie building is the opposite—you're creating systems AND finding users simultaneously.
For those considering this: Start building in public NOW. The audience you build while employed becomes your launchpad when you go solo.
Curious—for those who've done Product Hunt launches: what actually worked for you? I'm seeing so much conflicting advice about timing, pre-launch strategies, etc.