What three skills are most important for a good developer in the modern world?

Deep understanding of programming fundamentals and software architecture. This includes knowledge of algorithms, data structures, OOP principles, and design patterns.

Ability to work with modern tools and technologies. For example, proficiency with version control systems (Git), understanding CI/CD, containerization (Docker), as well as experience with frameworks and libraries relevant to Java.

Communication skills and ability to work in a team. In the modern world, developers often interact with various specialists, so it is important to be able to clearly articulate ideas, listen, and collaborate effectively.