System Design AI

Guided practice

Start with a template. Work through each step. Ask Coach when you need a second opinion.

All designs 1

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

Inverted indexClear filters

71. Design a Search Engine like Elasticsearch
Search a billion documents in 200 ms: inverted indexes, analysers, Lucene segments, shards and replicas, query then fetch with BM25, fed by CDC.
ClassicMedium
Sharding Search Distributed systems
+4
AWS Inverted index Lucene OpenSearch
Worked design
Practice

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