Describe the most complex problem you've faced in the last month.

Over the past month, one of the most challenging problems was optimizing the performance of a Flutter application with a large number of widgets and animations.

The issue was that the interface lagged during scrolling and animations, especially on low-end devices.

To solve this, I:

• Used const constructors where possible to reduce the number of widgets recreated.
• Applied RepaintBoundary to isolate areas that are frequently repainted.
• Optimized the use of ListView with itemBuilder instead of creating all items at once.
• Profiled the application using Flutter DevTools to identify bottlenecks.

As a result, I was able to significantly improve the smoothness of the interface and reduce the load on the CPU and GPU.