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# Flutter App Developer -- AI Fitness & Wearable Integration

- **Company:** TZUMI ELECTRONICS LLC
- **Location:** New York, NY, United States
- **Contract:** Permanent contract
- **Skills:** Flutter, Apple Watch, Testing (Software), Application Programming Interfaces (APIs), Artificial Intelligence, Apple IOS, App Store (IOS), Bluetooth, Code Review, Data Synchronization, Software Debugging, Performance Tuning, Software Architecture, Data Streaming, Systems Integration, Audio Streaming, Offline Storage, AI Coding Agents, Kotlin, Dart, Google Play, Api Design
- **Published:** October 27, 2026
- **Apply:** https://www.thejobnetwork.com/job/f424f54c-05df-487d-917a-2d92c5fd9090/flutter-app-developer-ai-fitness-wearable-integration

## About the Role

* Strong Flutter and Dart skills, with production apps released on both iOS and Android.
 * Hands-on watchOS and Wear OS development experience, using Swift and Kotlin as appropriate.
 * Experience with Apple Watch HealthKit workout sessions and Wear OS Health Services.
 * Practical experience with real-time heart-rate tracking and wearable communication.
 * Experience integrating AI features and using AI coding tools, with independent code review, testing, and debugging skills.
 * Strong API integration, state management, local storage, and data synchronization skills.
 * Ability to propose technical solutions, communicate clearly, and maintain documented code.

Preferred Experience

 * Real-time voice AI and audio streaming.
 * Bluetooth heart-rate monitors or fitness equipment.
 * Fitness apps, video playback, and in-app subscriptions.
 * Backend architecture and API design.

NOTE: Experience integrating Apple HealthKit and Android Health Connect and Develop watchOS and Wear OS components is important for this job.

## Description

Develop and maintain the FitRx app for iOS and Android using Flutter, including AI coaching, fitness tracking, and wearable integrations. The role also includes the watch-side functionality required to capture and transmit live heart-rate data from supported Apple Watch and Wear OS devices., * Build mobile features for user profiles, workouts, activity history, calendars, and nutrition guidance.

 * Integrate APIs, authentication, membership access, and data synchronization.
 * Develop AI coaching interfaces with conversational interactions and streaming responses.
 * Integrate Apple HealthKit and Android Health Connect for health and fitness records.
 * Develop watchOS and Wear OS components for live heart-rate collection and watch-to-phone communication.
 * Handle interrupted workouts, device disconnections, delayed readings, and reconnection.
 * Manage mobile testing, performance optimization, and App Store and Google Play releases.