Node.js

Explain how the Event Loop mechanism works in Node.js and its role in asynchronous event processing.

Have you used any framework in your projects?

Explain the concept of polymorphism in object-oriented programming.

Can you explain how guard mechanisms are implemented and used in programming?

What is the difference between using the .then method and using the await operator when working with promises?

Have you used generics in TypeScript development?

What are the main problems and obstacles you faced when transitioning the system architecture from monolithic to microservices?

What techniques and methods of time planning do you apply in your professional activity?

Can you name popular ORM libraries for working with databases in Node.js?

What methods or functions are used to read data from files via the FS module?

Explain what the DOM model is in the context of JavaScript

Do you have experience developing or supporting monolithic and microservice architectures?

What tools or libraries have you used in the process of interacting with databases?

Can you give an example of encapsulation in object-oriented programming?

What methods exist for declaring variables in JavaScript?

Do you have experience solving performance optimization problems in databases?

Junior — Middle

СБЕР

How long have you been using NestJS in your projects?

What conditions and characteristics should an organization have to ensure comfortable working conditions for employees?

Explain what a record's unique identifier in a database table is.

What is the purpose of the first parameter of the useCallback function?