
🚀 Full-stack MERN application inspired by DevTinder (from Namaste Node.js course)
💡 Solves a real pain point - Helps developers connect based on shared skills/interests
📈 Scalable architecture handling 500+ daily active users
Technical Breakdown
Frontend:
- Swipeable card UI with Framer Motion animations
- Real-time messaging via Socket.IO
- Redux Toolkit for state management
- Tailwind CSS with dark mode toggle
Backend:
- 35+ REST APIs with JWT authentication
- MongoDB compound indexes for fast queries
- Redis caching for match recommendations
- Rate-limited endpoints (100 requests/min)
Key Features:
✅ AI-powered matching algorithm
✅ End-to-end encrypted messaging
✅ Role-based admin dashboard
✅ CI/CD pipeline (GitHub Actions + Vercel)

Impact & Metrics
âš¡ 40% faster API responses after query optimization
📱 92% mobile usability score (Lighthouse)
🔗 300+ connections made during beta testing
What I Learned
- WebSocket challenges - Solved message persistence issues
- Performance tuning - Redis caching improved match loading by 2x
- Auth best practices - Implemented refresh token rotation