I Interviewed Flutter Developers for Years. Most Fail the Same 7 Questions.

It’s rarely because they don’t know Flutter. It’s because they only know the surface-level answers.

A few months ago, I interviewed a Flutter developer with almost 5 years of experience.

His resume looked impressive.

Multiple production apps.

State management experience.

Firebase.

REST APIs.

The usual checklist.

Then I asked a simple question:

“What actually happens when you call setState()?”

Silence.

He knew how to use it.

He didn’t know how it worked.

And that’s the difference between developers who clear senior Flutter interviews and those who don’t.

Many candidates memorize answers.

Senior candidates understand the reasoning behind them.

After conducting dozens of Flutter interviews and participating in hiring discussions, I’ve noticed the same pattern repeatedly.

The candidates who stand out aren’t necessarily the ones who know the most APIs.