How do you assess your professional level?

The assessment of professional level is a subjective process that depends on experience, knowledge, and skills. Usually, I evaluate myself based on the following criteria:

• Knowledge of language and core technologies.
• Ability to write clean, maintainable code.
• Experience with tools and frameworks.
• Ability to solve problems and find optimal solutions.
• Understanding of OOP principles and design patterns.

For example, if I have a good understanding of C# syntax, can work with .NET, LINQ, Entity Framework, and can independently implement business logic, I consider myself at a junior or middle level depending on the depth of experience and independence.