Interactive Web-based Problem Analyzer

I'm looking to build a web application centered around a sophisticated problem analyzer. This platform should be interactive, providing users with a stimulating and engaging interface.

Key requirements:
- Expertise in React.js, Node.js, Express, MongoDB, MySQL, and Spring Boot is crucial. I need someone who can develop custom features, such as the interactive problem analyzer, and ensure the application is scalable and high-performing.
- You should have a deep understanding of algorithm optimization and Big-O analysis to ensure the code is optimized and efficient. The project needs to run smoothly with minimal latency, as it will be handling multiple users simultaneously.
- Experience in creating interactive user interfaces is key. The problem analyzer needs to be designed in a way that is not only functional, but also engaging and easy to navigate for users.

If you have the skills and experience necessary to bring this project to life, I look forward to your bid.