Blockchain-based Examination Management System Development

I am in need of a developer who can build an Examination Management System (EMS) that incorporates blockchain technology and uses MongoDB for data storage. This system will be used for offline exams, specifically managing both multiple-choice and essay-type questions.

Key Features:
- Secure login
- Paper upload
- Biometric verification using facial recognition
- Automatic grading
- Real-time data storage

The integration of blockchain needs to be prioritized primarily for the biometric verification aspect of the system. Therefore, the ideal candidate should have experience in:
- Blockchain technology
- Biometric system development
- MongoDB
- Examination management system development

The ability to create a secure, efficient, and reliable platform for examination management is crucial.