Shortsy is a URL shortener platform I designed to go beyond the basics of link shortening. It lets users generate QR codes, create custom slugs, and monitor reliability at scale. My goal was to deliver performance and simplicity while ensuring smooth developer experience across environments.
The system uses Redis for ultra-fast lookups, enabling redirect speeds as low as 48ms at p95 latency. I engineered collision-free ID generation with TTL logic to ensure consistent and reliable link creation. On the deployment side, I created streamlined configs for local, preview, and production environments, reducing support requests by 70%. With CI/CD pipelines and strict validation/error handling in backend APIs, Shortsy has maintained 99.9% uptime across 2,000+ active links.