EduLearn Video Learning Platform
Global EdTech learning platform delivering adaptive HLS video streaming, real-time quizzes, and progress analytics to 150,000+ students.
Executive Project Context
EduLearn required a high-scale video learning infrastructure capable of streaming HD video lectures to over 150,000 students worldwide across varying mobile connection speeds.
⚠️ Initial Technical & Operational Challenges
Standard MP4 video downloads caused buffering on 3G networks, leading to high course abandonment.
Simultaneous quiz submissions by 5,000+ students during scheduled exams crashed legacy SQL servers.
Unreliable client state syncing resulted in lost certificate progress records.
💡 Architectural Solutions by codeYB
Transcoded video assets into multi-bitrate HTTP Live Streaming (HLS) feeds for smooth 1080p to 360p playback.
Engineered decoupled read-replica clusters handling 20,000 quiz submissions per second.
Built an offline-resilient sync queue saving student timestamp progress every 5 seconds.
Quantifiable Business Impact (Before vs After)
EdTech Video Streaming Architecture
EduLearn utilizes AWS Elemental MediaConvert with global CloudFront edge distribution, enabling zero-buffering video playback while maintaining strict Digital Rights Management (DRM).
Key Solution Features
Adaptive HD Video Player
Custom player supporting variable speed, subtitles, and offline video downloads.
Automated Interactive Quizzes
Timed multiple-choice & code evaluation quizzes with instant score reports.
Verified Digital Certificates
Cryptographically signed certificates generated upon 100% course completion.
Instructor Analytics Portal
Engagement graphs highlighting exact student drop-off timestamps per lecture.
Project Architectural FAQs
"The custom HLS video streaming solution engineered by codeYB allowed us to deliver zero-buffering courses to 150,000+ students simultaneously across 40 countries."
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