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

7 features3 roles7 technologies1 repositories
Stack
Technologies
Next.jsTypeScriptFirebase Realtime DatabaseTailwind CSSFramer MotionVercelGoogle Analytics
Access
User roles
GuestUserAdmin
Overview
Product & engineering
- Chill có Gu is an interactive web app designed to help media organizations understand Gen Z better through creative and visually appealing questionnaires.
- Engaging Experience: The interface is designed to be fun and smooth, keeping users interested from the first question to the last.
- Real-time Data Collection: Built with Firebase to capture and calculate survey responses instantly for researchers.
- Mobile-First Design: Optimized perfectly for smartphones to ensure a seamless experience via social media redirect links.
- Reached over 1,000 unique users with high completion rates.
- Achieved the #1 SEO ranking on Google for the brand name.
Scope
Key features
- Psychology-based Interactive Surveys
- Real-time Data Visualization
- Dynamic Multi-step Form Flow
- Custom Result Analytics for Users
- SEO-friendly Content Management
- Full Responsive & Mobile-first UI
- Social Media Meta Tag Optimization
Ownership
My contributions
- UI/UX Design & Brand Identity
- Frontend Engineering & State Management
- Real-time Database Architecture
- SEO Strategy & Analytics Implementation
- Performance Optimization for Mobile Devices
Visuals
Interface gallery
Production screens — layout, density, and real-world states.


