What were the main responsibilities you had as a developer in your last project?

In my last Java project, my main responsibilities included:

• Developing new functional modules according to customer requirements.
• Refactoring and optimizing existing code to improve performance and readability.
• Writing unit tests using JUnit to ensure code quality.
• Working with databases through ORM (e.g., Hibernate), writing queries and optimizing them.
• Participating in code reviews to maintain coding standards within the team.
• Integrating with external services via REST API.

For example, I implemented a service for processing orders, where I was responsible for business logic and database interaction.