Initializing Experience...
Initializing Experience...
Built a Twitter-like social platform with real-time feed, notifications, and millions of daily events.
Timeline
9 months
Team Size
7 engineers
Impact
Hit 1M DAU milestone which attracted Series A funding ($15M). The real-time experience became a key differentiator vs competitors.
Existing monolith couldn't handle growth. Feed generation taking 10+ seconds. Scaling to millions of users seemed impossible with current architecture.
Implemented fanout-on-read feed architecture with Redis caching, GraphQL for flexible queries, WebSocket for real-time updates, and microservices architecture.
What made this project complex
Building a scalable feed system that can generate personalized feeds in real-time for millions of users with low latency and high availability.
Measurable improvements
Feed Latency
300ms
97% faster
DAU Growth
1M
from 10k
Cost per User
$0.001
highly optimized
Uptime
99.98%
reliable
Feed generation time reduced from 10s to 300ms
Real-time notifications working seamlessly for millions of users
System scaled from 10k to 1M DAU without issues
Cost per user: $0.001/month (very efficient)
Customer satisfaction: 4.7/5 rating
Tools and frameworks used