Java Backend Engineer

Job Summary:
We are looking for a skilled Android Fullstack Developer with a backend focus to join client's Android Research & Engineering team. In this role, you'll work on cutting-edge applications to help enhance health and fitness insights. You'll be responsible for building, maintaining, and optimizing backend services and APIs that power our Android applications, alongside some frontend development on Android using Kotlin.

Responsibilities:

• Design, develop, and maintain scalable backend systems and APIs for the Fitbit Android applications.
• Collaborate closely with mobile and backend teams to build services that drive engaging user experiences and data-driven insights.
• Work with complex databases and handle SQL queries, optimizing performance for various use cases. Develop and integrate APIs, ensuring security and scalability to support high-volume transactions.
• Use Java as the primary programming language, ensuring robust and maintainable code.
• Contribute to frontend development using Kotlin as needed, adding new features and enhancing UI functionality. Write unit and integration tests to ensure code quality and reliability.

Requirements:

• Strong experience in backend development with a focus on building APIs for mobile applications. Expertise in Multithreaded Programming
• Proficiency in Java with a solid understanding of OOP principles and clean code practices. Possess expertise on service/server side software development.
• Strong SQL and database skills with experience in designing and optimizing database schemas.
• Experience with Android frontend development using Kotlin (preferred). Familiarity with cloud services and deployment (e.g., AWS, Google Cloud) is a plus.
• Preferred Qualifications: Previous experience in health tech or fitness applications; Familiarity with CI/CD pipelines, complex build systems, deployment and agile development practices; Understanding of Android UI principles, patterns, and best practices.