What is the most notable project or concept you have implemented in your work?

In one of my projects using Node.js, I implemented a microservices architecture to improve scalability and maintainability of the application. This allowed me to split the monolithic application into independent services, each responsible for its own business logic and capable of evolving separately. As a result, the system's resilience increased and adding new features became simpler.

Example: authentication service, order processing service, and notification service operate separately and interact via REST API or message queue.