#systemdesign

The fastest way to produce a shallow system design: saying "I'll add Redis for caching" and stopping...

A 45-minute system design walkthrough of a CI service: capacity math, a leased job queue, ephemeral runners, live logs over SSE, a lockfile-keyed cache.

Uber Eats search had gotten so slow that Uber's own engineers called it untenable. Then they cut the...

CodeWithObaid | Software Engineer Interview Preparation Series Have you ever wondered what actually...

I'm starting a journey to understand how production-grade AI systems are designed, built, scaled, and...

An iGaming platform must serve several demanding products at once: sportsbook, casino, CRM,...

A backup notification confirms that a job ran. It does not necessarily prove that a business can...

Imagine you're building an e-commerce application. A user opens a product page. Instead of querying...

Every cloud platform ships with a scheduler, and inside one platform it is usually the right tool. Five checks for deciding when work has outgrown it.

"There are only two hard things in computer science: cache invalidation and naming things." — Phil...

Empresas como Notion, Slack e Discord passaram por isso e usaram a mesma técnica: o sharding. Estudei...

Making fees transparent when providers calculate and collect them differently. Fees seem simple...