Guided practice

Company tags are community-reported. Counts on cards show how many people reported that design.

• Practice briefStart with your own approach

  9. Design Search Autocomplete

  Return useful prefix suggestions quickly while refreshing rankings and removing unsafe entries.

  ClassicMedium

  CachingSearchPrivacy

  +2

  IndexingRanking

  Discuss

  Practice
• 

  88. Design a Reviews and Ratings System

  Dish reviews only from customers who ordered them, votes counted from a change stream, reviews ranked by the Wilson bound, payouts made exactly once.

  ClassicMedium

  DatabasesStreamingDistributed systems

  +7

  AWSDynamoDBKafkaRankingRatingsReviewsSocial

  Worked design

  Practice

Self-paced by default. Your answers and canvas stay private. AI feedback runs only when you ask for it.