Strong Hire vs No Hire Signals
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Design Yelp
Problem statement Short description Design a proximity service like Yelp: given a user's location, return nearby businesses (restaurants, shops, etc.), optionally filtered by category or rating, and let users view business details and read or leave reviews. For example, a user at (37.78, -122.41) searches for
Design TinyURL
Problem statement Short description Design a URL shortener service, similar to TinyURL or Bitly. Given a long URL, such as https://www.example.com/articles/system-design-interview-guide-for-beginners, the system should return a short URL, such as https://tiny.ly/aB92xKq. When a user opens the short
Back-of-the-envelope Numbers
