Flutter Frontend with Firebase and Financial API Integration

I am looking for a professional with expertise in Flutter for cross-platform mobile development. The project involves creating a mobile application for both iOS and Android, utilizing Firebase for backend services and integrating with financial APIs like Plaid.

Key Requirements:
- Frontend Development: Using Flutter to create a responsive and user-friendly UI.
- Backend Integration: Utilizing Firebase for user authentication (Email/password), real-time database, and data storage.
- Data Visualization: Implementing charting libraries (e.g., Chart.js or D3.js) for data visualization within the app.
- Financial API Integration: Connecting the app to financial APIs to retrieve account balances.

Ideal Skills:
- Proficiency in Flutter
- Experience with Firebase
- Familiarity with financial APIs (especially Plaid)
- Knowledge of charting libraries (Chart.js, D3.js)
- Strong backend integration skills

I need an expert who can seamlessly integrate these components and deliver a high-quality, cross-platform mobile application.