Full Stack Mobile Developer

Há 3 dias

Brazil, BR Tech Tactix Advisory Group Tempo inteiro

About the Role

I am supporting a US healthcare client in hiring a Full-Stack Mobile Developer to take end-to-end ownership of their flagship mobile application. In this role, you will serve as the sole mobile developer, responsible for evolving an app that pairs with a Bluetooth-enabled pulse oximeter ring to capture overnight sleep data and securely upload it to the cloud.


You won’t be working in isolation—while you’ll lead all mobile-focused design and development, you’ll collaborate closely with a team of experienced C#/.NET backend engineers. You’ll also contribute to backend features related to sleep-study processing and data workflows, helping shape the overall product experience from device integration through clinical-grade data analysis.


This is an opportunity to own a critical mobile product in a modern health-tech environment, working with senior engineers to deliver technology that directly impacts patient outcomes. The ideal candidate will have expertise in both mobile development (Flutter/Dart) and backend technologies (C#/.NET), and be capable of ensuring seamless device integration, reliable overnight data collection, and robust backend connectivity with Azure services.

Key Responsibilities


  • Lead the development and maintenance of cross-platform mobile applications using Flutter/Dart for iOS and Android.
  • Implement and optimize Bluetooth connectivity with the ring pulse oximeter device.
  • Address Android battery optimization challenges to guarantee reliable overnight data collection.
  • 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.


Requirements


  • Professional level English comprehension (spoken, reading/writing)
  • 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 Android 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.
  • Advanced English communication skills (C1 level), both written and spoken.
  • Strong problem-solving abilities and attention to detail.
  • Prior experience in health or medical app development is a plus.

Technical Skills


  • Primary: Flutter/Dart, Bluetooth LE, iOS, Android
  • Secondary: C#, .NET, Azure, Firebase
  • Tools: GitHub, Sentry, PostHog, App Store Connect, Google Play Console


What We Offer


  • The opportunity to develop innovative health technology with real impact.
  • Competitive salary based on experience.
  • Professional growth and development opportunities.
  • A collaborative team culture that values independence and initiative.

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