Online Test Website Development

I'm looking for a skilled developer to create an online testing website similar to https://www.testranking.in/. The website should be built on Firebase and include both frontend and backend development.

Key Requirements:
- Implement the design layout, user interface functionality, content structure, and database structure from the reference site.
- Support for multiple-choice tests.
- User interaction should be primarily through timed tests.

Ideal Skills and Experience:
- Proficiency in Firebase
- Experience with frontend and backend development
- Strong understanding of design and UI/UX principles
- Familiarity with creating and managing timed tests

Please provide a portfolio showcasing similar work.