Have you had any architectural challenges?.

Yes, I have experience solving architectural problems. This included:

• Designing a modular application structure to improve scalability and maintainability.
• Selecting and implementing design patterns (e.g., MVC, MVVM, microservices).
• Optimizing interactions between components and layers of the application.
• Developing strategies for transaction management and error handling.
• Ensuring security and performance at the architectural level.

For example, in one project, I participated in designing a system with a microservices architecture, where I had to define service boundaries, methods of interaction via REST API and message queues, and also ensure fault tolerance and scalability.