How do you ensure your team writes testable, maintainable code?

Short answer: We design for testability from day one. For example, we follow dependency injection in .NET Core and avoid tightly coupled code. In React, we separate logic into custom hooks or services, making it easier to unit test. We aim for meaningful unit tests (xUnit, Jest) and integration tests where needed. I also encourage writing clear interfaces and modular components so code can evolve without breaking everything.…

Explain a bit more

Maintainability is part of every code review discussion.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.