Cloud Class Room

Cloud Classroom is an educational platform where I worked as a Backend Developer in a small team consisting of a Project Manager, Business Analyst, Frontend Developer, and me.

We analyzed requirements and researched similar educational platforms. I identified three main roles: Admin, Instructor, and Student, and categorized the features accordingly. I was also responsible for designing the database, which we reviewed and refined through multiple team discussions.

We divided the system into around 20–25 modules, and I estimated and completed the backend within 60 working days while frontend development progressed in parallel.

Key Features:

• Course and lesson management
• Quizzes, question banks, and learning resources
• Course sharing between instructors with permissions
• Private tuition and time-slot management with overlap validation
• Zoom integration for live classes
• Bulk student and group management
• Real-time one-to-one and group chat using Socket.io

Technical Challenges:

• Implemented rate limiting for API security.
• Used BullMQ for asynchronous bulk email processing.
• Used Amazon S3 for videos, PDFs, documents, subtitles, and other resources.
• Implemented multipart uploads for faster and more reliable large video uploads.

After completing the backend, I also fixed frontend-reported issues and performed UI testing. This helped me identify edge cases and reduce backend bugs.

I also gained hands-on experience with AWS, Nginx, Jenkins, and CI/CD deployment, strengthening my understanding of cloud deployment and DevOps practices.