Is it necessary to talk to candidates for the Middle position about the principles of software system design?

For the Middle position, it is important that the candidate understands not only the syntax of the language but also the fundamentals of software system design. Knowledge of design principles (e.g., SOLID, design patterns) helps in writing more maintainable, scalable, and readable code.

Discussing these principles in an interview allows assessing the candidate's level of systemic thinking, their experience in solving architectural problems, and their ability to make justified decisions during development.

Therefore, it is advisable and beneficial to talk with Middle candidates about software system design principles.