Tell about a major project you participated in.

In one of the major projects, I participated in developing a scalable web application for e-commerce using Node.js. My role included developing server-side logic, integrating with databases and external APIs, and optimizing performance.

The project required handling a large number of requests and ensuring high availability. We used a microservices architecture, where each service was responsible for a specific business logic.

The main tasks I addressed were:

• Implementing REST API using Express.js.
• Working with MongoDB, including query optimization and indexing.
• Setting up caching with Redis to reduce database load.
• Implementing authentication and authorization system with JWT.
• Setting up CI/CD for automated deployment and testing.

This experience allowed me to gain a deeper understanding of Node.js application architecture and scaling features in production.