AI-Powered Web and Mobile Platform Development

We are seeking an experienced professional or team to handle the end to end development of an innovative platform, comprising both web and mobile applications with a strong artificial intelligence component. The system must be capable of interpreting natural language requests, querying and integrating data from external sources via APIs, applying server-side business rules, and presenting relevant options to the user in an intuitive manner.

The project scope includes:
- Development of native applications for Android and iOS.
- Creation of a responsive website.
- Implementation of a robust administrative dashboard.
- Database configuration and management.
- Integration with various external services.

The preferred technology stack for this project is:
- Application: React Native + Expo
- Website and administrative dashboard: Next.js
- Server and API: Node.js + NestJS
- Programming language: TypeScript
- Database and authentication: PostgreSQL + Supabase
- AI Agent: OpenAI API
- Integrations: REST APIs and webhooks

We are open to suggestions for equivalent technologies, provided that the proposal details how these choices impact the total cost and the long-term maintenance of the system. Candidates should provide examples of similar projects, indicate their availability, and offer an initial estimate of the timeline and costs for each phase. The detailed workflow and specific project rules will be shared during a private discussion with the selected candidates.