Companies

Real-world system design case studies — how companies built systems at scale.

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Twitter

6 case studies

Engineering at scale

How Twitter/X built systems at scale — timelines, search, storage, load balancing, ID generation, and full system design.

TimelinesSearchStorageLoad BalancingID Generation

Featured

  • Twitter (X) System Design
  • Timelines at Scale
  • Manhattan — Twitter Distributed Database