Senior Android Developer

Company Description
The NOWATCH ethos is focused on helping individuals feel better by integrating modern science and technology with timeless design to empower preventive health control. The impact of feeling better extends beyond personal well-being to positively influencing loved ones today and in the future.

We are looking for a Senior Android Developer to join our team and play a crucial role in building and enhancing our Android app, ensuring it delivers a seamless and intuitive user experience. If you’re passionate about creating innovative health-focused applications, working with sensor-based data, and pushing the limits of what the Android ecosystem can do, we’d love to hear from you!

As our new Senior Android Developer, you’ll play a vital role in shaping the future of our Android app. In this role, you will:

• Build high-quality, scalable, and efficient Android applications using Kotlin and Jetpack Compose.
• Work closely with our Bluetooth-enabled wearable, utilizing the Android Bluetooth stack (BLE) to ensure accurate and efficient data transmission and synchronization.
• Ensure smooth real-time data processing, low latency, and optimal power management across a diverse range of Android devices.
• Collaborate with Teams: Work with designers, backend engineers, and firmware developers to create 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 (Espresso/Compose Test), debug complex issues, and optimize app performance using Android Vitals and Profilers.
• Keep up with Google’s latest technologies, Material You design guidelines, and Play Store best practices to continuously improve the NOWATCH Android experience.

We’re looking for someone who resonates with our values and brings:

• Expert in Kotlin & Jetpack Compose. Deep proficiency in modern Android UI development. Knowledge of the traditional View system and XML is a plus.

• Mastery of Kotlin concurrency, including structured concurrency, Scopes, and efficient handling of asynchronous data streams.
• Skilled in profiling with Android Studio Profilers to analyze CPU, memory (leak detection), and battery consumption

• Deep understanding of Compose recomposition, state management, and stability to ensure smooth, high-frame-rate rendering.

• Advanced knowledge of SQLite-based storage, including schema migrations, complex relationships, and reactive data queries. Knowledge and experience with Room is a plus.

• Extensive experience with the Android Bluetooth (BLE) stack, including handling connection stability, permissions, and sensor-based data.

• Experience with Health Connect, Google Fit, or similar health-focused APIs is a plus.

• Solid knowledge of Clean Architecture, MVVM, or MVI patterns and Hilt/Dagger for Dependency Injection.

• Experience with real-time data processing and integrating with RESTful APIs (using Retrofit or Ktor).

• Proven ability to write testable code using JUnit, Mockk, and Compose UI testing.

• Mission-Driven: Passionate about health-tech, wearable devices, and improving well-being through technology.

Above all, we value a mindset that aligns with our mission.

• Entrepreneurial spirit with a “founder’s mindset” – authentic, proactive, resourceful, and ownership-oriented.

• Comfort with ambiguity and an ability to pivot strategies as needed.

• Passion for health technology and excitement to contribute to a mission-driven startup.

When you join our team, you’re not just taking a job—you’re embarking on a journey with like-minded individuals who care deeply about:

• Collaboration: We thrive together in our Amsterdam office.
• Growth: Opportunities to learn, evolve, and challenge yourself.
• Impact: Contributing to something bigger than ourselves.

At NOWATCH, we believe in supporting our team with:

• A MacBook and a NOWATCH.
• A competitive salary.
• A great office in the heart of the Jordaan, Amsterdam.
• Hybrid working environment
• 27 holiday days
• Team events: We celebrate the new seasons four times a year and host multiple events throughout the year.

Are you ready to help us inspire a more mindful world? Send us your CV and a short note about why this role excites you.

Application Deadline: February 15th, 2026

Let’s build something extraordinary together.