An Android developer is a professional responsible for designing, building, and maintaining mobile applications.

Android Developer Roles and Responsibilities:

1. Application Development: Android developers create mobile applications for the Android operating system, utilizing programming languages like Java or Kotlin.

2. UI/UX Design: They collaborate with designers to implement user interface and user experience elements, ensuring optimal usability and visual appeal.

3. Testing and Debugging: Android developers conduct thorough testing and debugging of applications to identify and fix issues, ensuring high-quality performance.

4. Integration with APIs: They integrate applications with external APIs and services to access additional functionality and data, enhancing user experiences.

5. Maintenance and Updates: Android developers regularly update and maintain applications to fix bugs, add new features, and ensure compatibility with new Android versions.

Skills Needed:

1. Proficiency in Programming Languages: Android developers should have strong skills in Java or Kotlin, the primary languages used for Android app development.

2. Understanding of Android SDK: They should be familiar with the Android Software Development Kit (SDK) and its components, including libraries, APIs, and development tools.

3. UI/UX Design Skills: Knowledge of user interface and user experience design principles is essential for creating visually appealing and user-friendly applications.

4. Knowledge of Database Management: Android developers should understand database management systems like SQLite for storing and retrieving data within applications.

5. Version Control Systems: Proficiency in version control systems like Git is crucial for managing code changes and collaborating with other developers.

6. Problem-Solving Skills: Android developers should possess strong problem-solving skills to troubleshoot issues, optimize performance, and implement efficient solutions.

7. Communication and Collaboration: Effective communication and collaboration skills are essential for working with designers, product managers, and other team members throughout the development process.