System Design AI

Designs

Pick a system. Work through the problem. Compare your approach.

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Classic designs 1

Ordered by design number

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

Many to manyClear filters

99. Design a Cross-Product Tagging System
One set of tags across Jira issues, Confluence pages and Bitbucket pull requests: batch renders, tag pages that never leak, suggestions, popular tags.
ClassicMedium
Databases Search Security
+6
AWS Collaboration DynamoDB Many to many OpenSearch Permissions
Worked design
Practice

Each design brings together the brief, practice, examples and discussion.