MERN Stack Development Needed

I need an experienced US-based web developer for my MERN project. The project is currently in the development stage.

Key requirements:
- Implement user authentication via email and password
- Set up real-time data updates
- Integrate necessary APIs

Ideal skills and experience:
- Expertise in MongoDB, Express.js, React.js, and Node.js
- Strong experience with user authentication and API integration
- Ability to deliver within a tight 3-day timeline

Start your bid with "I live in US - " attach your state.
The budget is $200.

Please provide relevant work samples and ensure availability for communication during the project.