--- title: "Twitter system design | twitter Software architecture | twitter interview questions" url: https://daily.dev/posts/twitter-system-design-twitter-software-architecture-twitter-interview-questions-ykngfq19i source_url: https://www.youtube.com/watch?v=wYk0xPP_P_8 type: video:youtube source: "Tech Dummies - Narendra L" published: 2026-05-31T07:49:18.111Z updated: 2026-05-31T09:15:01.924Z tags: ["career", "distributed-systems", "redis"] reading_time: 36 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Twitter system design | twitter Software architecture | twitter interview questions **[Tech Dummies - Narendra L](https://daily.dev/sources/techdummies)** · 36 min read · 0 upvotes · 0 comments ## Summary A walkthrough of Twitter's system design covering core architectural concepts: user timeline, home timeline, trending hashtags, and search. Key topics include the fan-out approach for distributing tweets to followers' home timelines, handling celebrity accounts with millions of followers using a hybrid pull/push strategy, Redis-based caching for read-heavy workloads (600K reads/sec vs 600 writes/sec), stream processing pipelines (Kafka, Apache Storm) for real-time trending hashtag computation with geolocation mapping, inverted full-text indexing (EarlyBird) for search via scatter-gather across distributed nodes, and coordination via ZooKeeper for large Redis clusters. The database layer uses MySQL-based Gizzard and Cassandra for analytics. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#career](https://daily.dev/tags/career), [#distributed-systems](https://daily.dev/tags/distributed-systems), [#redis](https://daily.dev/tags/redis) [View this post on daily.dev](https://daily.dev/posts/twitter-system-design-twitter-software-architecture-twitter-interview-questions-ykngfq19i)