Senior Android Developer

TL;DR

Senior Android Developer: Building and enhancing a health-focused Android application for a Bluetooth-enabled wearable device with an accent on real-time data processing, low latency, and optimal power management. Focus on designing scalable architecture, ensuring seamless user experience, and integrating sensor-based data efficiently.

Location: Hybrid in Amsterdam, Netherlands. Candidates must be based in or willing to move to the Netherlands and be able to work from the Amsterdam office three times per week.

Salary: Competitive

Company

hirify.global is a health-tech company integrating modern science and technology with timeless design to empower preventive health control.

What you will do

• Build high-quality, scalable, and efficient Android applications using Kotlin and Jetpack Compose.
• Utilize the Android Bluetooth stack (BLE) for accurate and efficient data transmission and synchronization with our wearable.
• Ensure smooth real-time data processing, low latency, and optimal power management across Android devices.
• Collaborate with designers, backend engineers, and firmware developers for a seamless cross-platform product experience.
• Design and implement clean, modular, and maintainable code following Modern Android Development (MAD) practices and architecture components.
• Write unit tests and UI tests, debug complex issues, and optimize app performance using Android Vitals and Profilers.

Requirements

• Expert proficiency in Kotlin & Jetpack Compose for modern Android UI development.
• Mastery of Kotlin concurrency, including structured concurrency and asynchronous data streams.
• Skilled in profiling with Android Studio Profilers for CPU, memory, and battery consumption.
• Extensive experience with the Android Bluetooth (BLE) stack, including connection stability and sensor-based data.
• Solid knowledge of Clean Architecture, MVVM, or MVI patterns and Hilt/Dagger for Dependency Injection.
• Proven ability to write testable code using JUnit, Mockk, and Compose UI testing.

Nice to have

• Knowledge of the traditional View system and XML.
• Knowledge and experience with Room for SQLite-based storage.
• Experience with Health Connect, Google Fit, or similar health-focused APIs.

Culture & Benefits

• Opportunities to learn, evolve, and challenge yourself with impact on a mission-driven product.
• A MacBook and a hirify.global device provided.
• 27 holiday days per year.
• Regular team events, including seasonal celebrations.