Tag
Backend Engineering
2 articles · #BackendEngineering
BuildDoing
Testing What Matters, Not What's Easy
The coverage trap — why 80% can hide critical paths, and what to actually measure instead
6 min · August 11, 2026
BuildDoing
Your Cache Hit Rate Looked Fine Until the Hour Mark
Redis did its job on every miss — your application just sent two hundred loaders to Postgres at once.
6 min · June 15, 2026