Comprehensive LMS Development for Student Courses

I'm looking for an experienced developer to create a robust Learning Management System (LMS) tailored for student courses. The LMS will primarily focus on course delivery and will host a variety of course formats including video-based, text-based, and interactive modules.

Key Requirements:
- Intuitive user interface for easy navigation
- Secure and scalable platform to support a large number of students
- Support for various course formats: video, text, interactive
- User assessment and progress tracking capabilities
- Mobile-responsive design

Ideal Skills and Experience:
- Proven experience in developing LMS platforms
- Strong understanding of UX/UI design principles
- Expertise in video hosting and interactive content integration
- Familiarity with user assessment tools and progress tracking metrics
- Knowledge of security protocols to protect user data

Please provide examples of previous work and a detailed plan for development.