System Design — Design Uber / Ride Sharing (Time-Scale Tiers and Spatial Real-Time Matching)
"Design Uber" is the first system design problem where real-time location is central. WhatsApp is about delivering bytes; Instagram is about choosing ...
Articles in System Design
System Design — Design Instagram Feed (Push vs. Pull, the Decision That Shapes Everything)
What makes "design Instagram's feed" a great interview question is that it has one pivotal architectural decision and your answer reveals everything a...
System Design — Design WhatsApp (The Walkthrough I'd Use in an Actual Interview)
The most common mistake in a system design interview is jumping straight to the architecture diagram. Candidates have seen "design WhatsApp" on a hund...