What tasks and roles did you perform in your previous projects?

In previous Node.js projects, I performed the following roles and tasks:

• Developing REST APIs for interaction with databases and client applications.
• Configuring and optimizing the server-side, including working with Express.js.
• Integrating with external services and APIs.
• Writing unit tests to ensure code quality.
• Participating in the design of the application's architecture, choosing technologies and tools.
• Optimizing performance and eliminating bottlenecks in the code.

For example, in one project, I was responsible for creating an authentication and authorization system for users using JWT and OAuth.