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Ed-Tech & Learning·Mobile App (React Native) & Offline Sync·Sprint Cadence: 10 Weeks
SkillStream — Mobile Microlearning & Offline Training App
A bite-sized corporate training mobile app with offline video caching, interactive spaced-repetition quizzes, and localized multilingual course modules.
Delivery Format
Cross-Platform Mobile App
Data Architecture
Offline-First SQLite + CRDT Sync
Audio Engine
Background Audio Mode & Variable Speed
Engineering Challenge
Operational Friction & System Constraints
Enterprise employees working in remote field locations had unstable connectivity and low course completion rates on legacy desktop learning management portals.
Architecture & Implementation
System Engineering & Automation
Created an offline-first mobile app using React Native and SQLite, enabling background content prefetching, audio-mode course playback, and interactive gamified flashcard quizzes.
Architectural Core Highlight
Deterministic CRDT conflict resolution synchronizing offline quiz progress and certificate awards upon network reconnection.
Technology Stack
React NativeTypeScriptSQLiteNode.jsGraphQLAWS S3Tailwind CSS
Delivered System Artifacts
- Production React Native iOS & Android applications
- Offline sync library with automatic background retry logic
- Admin curriculum manager & SCORM content importer
- Real-time corporate compliance reporting dashboard
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