Full Stack Mobile Developer (Flutter, C# / .NET)

Company Description US based health technology company to be disclosed during the interview process.

Role Description We are seeking a

Full Stack Mobile Developer

to join our team and take ownership of our health monitoring mobile application. This application integrates with a Bluetooth-enabled ring pulse oximeter to collect health data throughout the night.

The ideal candidate will be a hands-on developer with expertise in both mobile development (Flutter / Dart) and backend technologies (C# / .NET), capable of ensuring seamless device integration, reliable overnight data collection, and robust backend connectivity with Azure services.

Responsibilities Lead the development and maintenance of cross-platform mobile flagship application using Flutter / Dart for iOS and Android. Optimize Bluetooth connectivity with the ring pulse oximeter device. Address mobile battery optimization challenges to guarantee reliable overnight data collection. Introduce in app features to provide payments, notifications, and support (chat) Manage the release process for both the Apple App Store and Google Play Store. Collaborate with backend developers on Azure-hosted .NET services, contributing to backend development when required. Ensure compliance with health data security and privacy standards. Work independently while providing technical leadership within the team.

Qualifications Advanced English

communication skills (C1 level), both written and spoken. 7+ years

of professional software development experience, with strong expertise in mobile development. Proven experience with

Flutter / Dart

for cross-platform mobile applications. Working knowledge of

C# and .NET , with the ability to contribute to backend services. Deep understanding of

Bluetooth Low Energy (BLE)

implementation. Experience with

mobile battery optimization techniques

for background processes. Successful track record of publishing and maintaining apps in the App Store and Google Play. Experience integrating with

Microsoft Azure services . Familiarity with

Firebase

(Authentication, Crashlytics, Analytics),

Sentry , and

PostHog . Familiarity with in-app payment systems (such as Authorize.net, Stripe) Strong problem-solving abilities and attention to detail. Prior experience in health or medical app development is a plus.