How to vet a Flutter developer
Good Flutter developers understand the widget tree deeply: how rebuilds happen, how to keep them cheap and how layout constraints flow from parent to child. They should have a clear view on state management, whether Riverpod, Bloc or another approach, and be able to explain why they chose it on past projects. Fluency in Dart, including async code, streams and null safety, is a baseline rather than a bonus. These fundamentals decide how well an app performs as it grows.
Ask about platform channels and plugins they have written, since most production apps need some native integration for payments, Bluetooth or device features. Experience with testing, including widget and golden tests, and with release automation for both stores separates developers who build demos from those who maintain real Flutter apps over years.
- Explains rebuilds, keys and layout constraints clearly.
- Has a reasoned approach to state management.
- Has built or modified platform channels or plugins.
- Writes widget, golden and integration tests.
- Shipped and maintained apps on both stores.
- Comfortable profiling with Flutter DevTools.


