Web App Development for Competitions and Exams

I'm looking to create a comprehensive web app similar to unstop.com. This platform will blend features of hosting competitions and conducting exams, catering to both participants/students and administrators/moderators.

Key Features:
- User Roles: Participants/Students and Administrators/Moderators
- Exam/Assessment Types:
- Multiple-choice questions
- Descriptive answers
- Skill-based tests

Ideal Skills and Experience:
- Experience in developing similar web applications
- Strong backend and frontend development skills
- Familiarity with user authentication and role-based access control
- Ability to integrate various question types into an assessment framework
- Strong UI/UX design skills to ensure a user-friendly experience

Looking forward to your proposals!