Unified Digital Supply Chain Platform Development

I'm seeking a skilled developer or team to build a comprehensive digital platform aimed at streamlining the supply chain for staple and export crops. This solution should cater to both smartphone and non-smartphone users and is intended for both farmers and administrators.

Core features include:
- USSD interface for non-smartphone users
- Mobile app (Android/iOS) with geolocation and dynamic catalog
- Web dashboard access for both farmers and administrators
- Order/payment via mobile money
- Harvest forecasting
- Dynamic pricing
- Training content in local languages (video tutorials, written guides, interactive quizzes)
- Loyalty program

The backend should support API integration with mobile money and USSD gateways.

Ideal Skills and Experience:
- Experience in developing USSD, mobile, and web applications
- Strong knowledge of API integrations, particularly with mobile money platforms
- Proficiency in backend development to support dynamic content and user roles
- Ability to create multi-language support, especially for local languages
- Familiarity with geolocation services and dynamic catalogs

Please provide samples of similar work done. Looking forward to your proposals!