Pattern series
Latency Budget Decomposition
6 System Design questions share this exact tag. Use the closely related series below for a fuller drill.
- 01Preview
Search Bar Autocomplete
Design the autocomplete/typeahead system behind a search bar that returns the top-K query suggestions for a partial prefix within a sub-50ms budget, a...
Meta - 02Preview
Spend Management System
Design a corporate spend management platform like Brex or Ramp — every card swipe must be authorized or declined against a live policy engine in under...
Brex - 03Preview
Technical Deep Dive
Present a technical deep dive of a system you personally built — the format used in senior/staff interview loops where you narrate one project end to...
Practice bank - 04Preview
Fraud Detection
Design a real-time ML fraud/risk scoring system that scores payment transactions in under 100 ms.
Stripe - 05Preview
ETA Prediction
Design an ETA prediction service that returns arrival-time estimates for millions of trips per second.
Uber - 06Preview
Real-time Voice AI Agent
Design a real-time voice AI agent platform for phone support and voice assistants: the complete loop from the user speaking to the agent speaking back...
Practice bank