GPS-Enabled Smartwatch Integration

I'm looking to develop a microservice application that integrates GPS tracking with smartwatch functionality, primarily for real-time location monitoring. The application needs to be compatible with both iOS and Android platforms.

Key Requirements:
- Real-time location tracking
- Integration with smartwatches
- Future expansion to include health metrics (heart rate, steps count, sleep tracking)

Ideal Skills and Experience:
- Experience in developing microservices
- Proficiency in mobile app development for both iOS and Android
- Familiarity with GPS and health metric integration on wearables
- Strong backend development skills
- Knowledge of data synchronization and real-time processing

Looking forward to your proposals!