What role and responsibilities do you perform within this project?

In my current Android project, I perform the following roles and responsibilities:

• Developing new functional modules of the application in Kotlin.
• Refactoring and optimizing existing code to improve performance.
• Writing unit tests and integration tests to ensure quality.
• Participating in sprint planning and task estimation.
• Collaborating with designers and testers to align requirements and fix bugs.

Thus, I am responsible for the entire development cycle of the functionality from idea to release.