System Design · Instacart · Hard
We are building the ranking system for a short-term rental platform. A traveler opens the app, enters a destination, travel dates, and number of guests, and the system must return a list of available listings ordered specifically for that traveler’s preferences. The core problem: among roughly a thousand candidates that satisfy the filters, which ones is this particular guest most likely to book? Showing irrelevant results drives users away; surfacing the right listings…
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