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System Design Questions
Choose a question to start your interview on the whiteboard.
Design Pastebin.com (or Bit.ly)
Free
Easy
URL shortening and paste storage at scale
Design the Twitter Timeline and Search
Hard
Fan-out feeds and real-time search at scale
Design a Web Crawler
Hard
Index the internet like Googlebot
Design a Key-Value Cache for Web Server Queries
Easy
LRU cache to save results of recent web server queries
Design the Data Structures for a Social Network
Hard
Shortest path across a distributed friend graph
Design a Sales Ranking System
Medium
Rank top products by category like Amazon
Design a Personal Finance Aggregator
Medium
Personal finance aggregator with async transaction sync like Mint.com