https://www.dhaval-shah.com/tags/system-design/Recent content in system-design on Dhaval ShahHugo -- gohugo.ioSat, 06 Jun 2026 02:00:50 +0000https://www.dhaval-shah.com/billion-user-trap-2-simple-apis/Sat, 06 Jun 2026 02:00:50 +0000https://www.dhaval-shah.com/billion-user-trap-2-simple-apis/Background This multi part series walks through the real architectural decisions and real mistakes behind designing a globally distributed KYC User Profile system - a system that should be capable of serving billions of users at 10M+ RPD with sub-500 ms P99 latency. It's mainly about weighing trade-offs and making architectural decisions. Not theory. Not a tutorial. No "here's how Redis works." If you already know what a cache stampede is, what CDC does, and why OFFSET pagination is dangerous — this series is written for you.