Shift Scheduling Mobile App Development

I'm seeking an experienced mobile app developer to create a shift scheduling app for both iOS and Android platforms.

The app should include:
- Shift creation and editing
- Employee notifications
- Shift swapping
- User authentication (details to be discussed)

Ideal Skills and Experience:
- Proficiency in mobile app development for both iOS and Android
- Experience with user authentication integration
- Strong background in building notification systems
- Familiarity with shift management functionalities

Please provide your portfolio and relevant experience in your bids.