Tell about the product architecture: what did it look like, what components did it consist of?

The product architecture is usually built on several key components that ensure its functionality and scalability. For example, in a web application, you can distinguish:

• Frontend — responsible for the user interface and interaction with the user.
• Backend — business logic, request processing, database interaction.
• Database — storage and management of data.
• API layer — interface for interaction between the frontend and backend, as well as with external services.
• Authentication and authorization services — managing user access.

Depending on the requirements, the architecture can be monolithic or microservices. For example, a microservices architecture breaks the system into independent services, which facilitates scaling and maintenance.

Examples of components in a microservices architecture:

• User service
• Order service
• Notification service
• API Gateway

Each service can have its own database and interact via REST or gRPC.

This approach allows for flexible product development and quick implementation of new features.