Scalable Web-Based Attendance System

I need a simple yet scalable web-based school attendance system with three classic-styled dashboards:

1. **Student Dashboard**:
- View calendar of classes.

2. **Teacher Dashboard**:
- Generate attendance code for today's class.
- Validate code after student enters (to ensure student presence in classroom).
- Display statistics and insights to improve attendance tracking.

3. **Admin Dashboard**:
- Manage users and courses.

Authentication Methods:
- Email and password
- Single Sign-On (SSO)
- Two-factor authentication (2FA)

Ideal Skills and Experience:
- Experience in developing web-based applications.
- Strong UI/UX design skills, particularly in classic design.
- Proficiency in implementing secure authentication methods.
- Ability to create scalable systems compatible with various backends.

Please provide your portfolio and relevant experience.

The code needs to be open for me to in the future adapt easily.