How do you determine your professional level?

The determination of professional level in PHP is usually based on several criteria:

• Junior: knows the basics of PHP syntax, can work with basic data structures, understands the principles of OOP at a basic level, can write simple scripts and solve typical tasks.
• Middle: confidently uses OOP, familiar with design patterns, can work with frameworks (e.g., Laravel, Symfony), understands database principles, can optimize code and work with external APIs.

Self-assessment is based on experience in solving tasks of appropriate complexity, understanding of application architecture, and the ability to work with modern tools and development practices.