I Quit My $120K Job Building Flutter Apps — Here’s What No One Told You About Starting On Your Own | By Seung-chul Jeff Ha | November 2025

From developer to founder in 6 months

The hard truth, the unexpected victories, and why a 9-to-5 job might be holding you back from your best work

The 3 a.m. moment that changed everything

You know that feeling, right? When you master programming in your day job, and you build someone else’s dream, and suddenly it occurs to you — What if this was me?

This is where I was six months ago. Comfortable salary. Great team. But something was eating at me. Every Flutter app I shipped made millions for others while I collected my paycheck and moved on.

So I did something crazy. Or brave. Or stupid, depending on who you ask.

I resigned.

Why flutter? Why now?

Let me be honest with you – choosing Flutter wasn’t just about the technology (although this hot reloading process was Chef’s kiss 🔥).

Here’s what makes Flutter the perfect startup weapon:

• One database = iOS + Android + Web -You don’t assign three teams or learn three sets of piles. You charge everywhere, fast.
• The market is hungry – Companies are in dire need of Flutter developers. Check out Upwork, check out LinkedIn. The demand is crazy but the supply? Still catching up.