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2025

Scaled to 1M+ users

Co-founded BoringRats and scaled infrastructure to 1M+ active users — acquired Nov 2025.

The story

How it was achieved

I co-founded BoringRats and owned the backend and data infrastructure end to end — from the first monolith to a horizontally scaled system serving 1M+ active users.

What I built:

  • Event-driven architecture on Kafka with idempotent consumers so no message was ever lost or double-processed
  • Real-time analytics pipeline (Airflow + Spark) powering product decisions with sub-minute freshness
  • Read-heavy API layer tuned with Redis caching and connection pooling — p99 latency held under 250ms
  • Zero-downtime deploy pipeline (CI/CD with canary releases) so shipping never interrupted users

The hard part: the growth curve was a hockey stick. What worked at 10K users broke at 100K. I spent months on capacity planning, backpressure handling, and database read-path optimization — learning to design for ten times the load you have today.

Outcome

Measurable results

Results:

  • 1M+ active users served on the platform
  • p99 API latency under 250ms at peak
  • 99.9%+ uptime through the growth phase
  • Infrastructure cost kept flat while traffic grew 10x
  • The company was acquired in November 2025