What is the task of developers on the server side of Node.JS?

Question

Node.js

I understand correctly that Node.JS back-end developers:
1. Accept the request.
2. Process, validate.
3. Manipulate with databases.
4. And the result is sent by a response request.
What is the task of back-end developers besides the above?

Answer 1

I understand correctly that Node.JS back-end developers:
1. Accept the request.
2. Process, validate.
3. Manipulate with databases.
4. And the result is sent by a response request.

No. Their goal is to write robust, performant, scalable and maintainable applications, with a well-documented API, if any.

Answer 2

In general terms, this is often the case. But in general, anything can happen in the backend, firstly, business logic, secondly, interaction with equipment (other systems, etc.), plus we must not forget that html can be assembled in the backend, etc. In fact, what is happening is limited only by the imagination of the developer.
What you specifically describe is often done as a backend when developing an API.