Complete MERN Stack Trading System

I need an experienced MERN stack developer to finish my trading system. The project is currently incomplete and requires work on both the frontend and backend.

Frontend Needs:
- User Interface Design: Create an intuitive and user-friendly interface.
- Data Visualization: Implement charts and graphs for real-time data.
- Trading Functions: Develop and integrate trading functionalities.

Backend Needs:
- Database Integration: Set up and connect the database.
- API Development: Create and optimize APIs for frontend-backend communication.
- Fixing Limit Orders: Debug and resolve issues with limit order functionality.

Ideal Skills and Experience:
- Strong proficiency in MongoDB, Express.js, React.js, and Node.js.
- Experience in building trading systems or financial applications is a plus.
- Solid understanding of database management and API development.
- Strong problem-solving skills and attention to detail.
- Ability to deliver high-quality work within the budget.

Please provide examples of similar work completed.