C#

Who can call a method declared with the public modifier?

Why is it important to reduce dependencies between modules in a system?

What is the main role of the Redis database in application architecture?

Can you explain how garbage collection works in programming languages?

What is the purpose of the await operator in asynchronous programming?

When is the absence of an index in a database justified and recommended to avoid creating it?

Describe your practical skills and approaches to improving the performance of applications you have worked with.

Can you explain the main differences between monolithic, service-oriented, and microservices architectures?

What was the composition of the development team at your previous workplace?

Where in memory is a variable of type object usually located?

Junior — Middle

СБЕР Тех

Explain the concept of reflection in programming and its main applications.

Is it possible to use mock objects to simulate context during testing?.

Explain how the use of asynchronous operations differs from multithreading in programming.

Explain what semaphores are and how they are used in thread management in programming.

Junior — Middle

OZON

A colleague's task has come to your Code Review What problems do you see in the code?

How to remove duplicates from an array? What methods are there?

Senior

СБЕР

Can you explain what is meant by a query execution plan in SQL and why it is needed?

Junior — Middle

OZON

What application programming interfaces (APIs) have you had to use in your practice?

Can you explain what the IReadOnlyList interface in C# is and how to use it?

How does the automatic memory management mechanism detect objects that are no longer accessible in the program?

Junior — Middle

СБЕР Тех