Case study
Architecture, delivery, and impact — how this product was scoped and shipped.

EducationCMSSEO
Koine – A Comprehensive Sex Education Platform for Children and Adolescents
Product:koine.id.vn
10 features9 roles12 technologies3 repositories
Stack
Technologies
Next.jsNestJSReact NativeTypeScriptPostgreSQLPrismaSocket.ioTailwind CSSShadcn UIAWSCI/CDGit
Access
User roles
AdminManagerSupporterSalesContent CreatorExpertGuestParentChild
Overview
Product & engineering
- Koine is a massive educational ecosystem featuring over 130 web screens and 50 mobile screens. It provides a safe, engaging environment for teenagers to learn about puberty and personal health.
- Flexible Learning Paths: Users can buy ready-made courses or mix and match specific chapters to create their own personalized learning journey.
- Integrated E-commerce: A complete shopping experience for personal care products, featuring secure payment gateways and automated shipping APIs.
- Real-time Interaction: Implemented Socket.io to power virtual classrooms, live streaming sessions, and private chat rooms.
- Parental Control System: Parents can create sub-accounts for their children, monitor progress, and ensure a safe digital experience.
- Full-stack Development: Managed everything from UI/UX design to building the NestJS backend and PostgreSQL database.
- SEO Specialist: Successfully optimized the platform to rank #1 on Google Vietnam for the "Koine" keyword.
- System Architecture: Designed a robust management dashboard for 10 different user roles using RBAC (Role-Based Access Control).
- Winner of multiple national awards in the Startup and EdTech categories.
Scope
Key features
- Personalized Course Customization
- E-commerce Store & Inventory Management
- Real-time Live Classes & Workshops
- Parent-Child Account Linking & Monitoring
- Interactive Educational Games
- Real-time Group Chat & Expert Consultation
- Multi-role Admin Dashboard
- Automated Shipping & Logistics Integration
- Secure Payment Gateway Integration
- Advanced Notification System
Ownership
My contributions
- Project Management & System Architecture
- Database Schema Design & Optimization
- Full UI/UX Design (180+ Screens for Web & Mobile)
- Backend API Development & Security
- Integration of Third-party Services (Payments, Shipping, Auth)
- SEO Strategy & Performance Tuning
Visuals
Interface gallery
Production screens — layout, density, and real-world states.




