Cross-platform Mobile App Backend Developer

I'm looking for a talented developer who can create a scalable backend for a mobile app that will be compatible with both Android and iOS.

The backend should include:
- User authentication: A secure and user-friendly authentication system
- Push notifications: Ability to send relevant and timely notifications to the app users
- Data encryption: Ensuring data security and privacy with reliable encryption protocols

The preferred database for this project is MongoDB.

The ideal candidate should have:
- Proven experience in developing scalable backend systems for mobile apps
- Expertise in user authentication, push notifications, and data encryption
- Strong understanding of MongoDB and its integration with mobile applications
- Proficient in cross-platform mobile app development
- Excellent communication skills and the ability to work collaboratively in a team.

If you have the required skills and experience, please get in touch. Thank you.