Cross-Platform Sat Nav App

I'm looking for an experienced app developer to create a sat nav application for both iOS and Android platforms. The app should include:

Core Features:
- Real-time traffic updates
- Alerts (Accident, User Proximity, Danger Points)

Ideal Skills and Experience:
- Proven experience in cross-platform app development.
- Expertise in integrating real-time data and alerts.
- Familiarity with navigation and mapping technologies.
- Strong UI/UX design skills for intuitive user experience.
- Ability to deliver within budget constraints.

Looking forward to your bids!