Web Designer jobs in Brazil
Senior Cross-Platform Mobile Developer
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Contato Seguro
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Insightful Consulting
Senior Cross-Platform Mobile Developer
Job summary
A tech-focused company in Brazil is looking for a Mobile Application Expert to lead the development of a flagship app that captures sleep data via a Bluetooth pulse oximeter. The ideal candidate will have over 7 years of mobile development experience, strong skills in Flutter/Dart, and familiarity with BLE integration. Responsibilities include app development, addressing battery optimization challenges, and ensuring compliance with health data standards. Advanced English skills and a background in health app development are a plus.
Qualifications
- 7+ years of professional software development experience, with strong expertise in mobile development.
- Proven experience with Flutter / Dart for cross‑platform mobile applications.
- Deep understanding of Bluetooth Low Energy (BLE) implementation.
Responsibilities
- Lead the development and maintenance of cross‑platform mobile applications using Flutter / Dart.
- Implement and optimize Bluetooth connectivity with the ring pulse oximeter device.
- Address Android battery optimization challenges.
Skills
We are seeking a highly skilled Mobile Application Expert to take end-to-end ownership of our flagship mobile application.
The successful candidate will be 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.
- 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.
- 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.
- The ideal candidate will have advanced English communication skills (C1 level), both written and spoken.
- Strong problem‑solving abilities and attention to detail are essential.
- Prior experience in health or medical app development is a plus.
* The salary benchmark is based on the target salaries of market leaders in their relevant sectors. It is intended to serve as a guide to help Premium Members assess open positions and to help in salary negotiations. The salary benchmark is not provided directly by the company, which could be significantly higher or lower.