Atlassian
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1/7Atlassian System Design Interview: Designing a Scalable Tagging System
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Atlassian System Design Interview: Designing a Scalable Tagging System
Question Details
I put together my end-to-end notes for designing a Tagging System, something that comes up frequently in system design interviews at companies like Atlassian. This covers: - Functional & non-functional requirements - Core entities (tags, entities, associations, tenants) - API design for tagging / untagging / querying - Database schema (read vs write patterns) - Scaling considerations - Analytics use cases (top tags, counts, pagination) I tried to focus not just on what to build, but why certain design choices are made (Postgres vs Cassandra, read/write separation, caching, etc.). Sharing this in case it helps others preparing for system design interviews. Feedback and improvements are welcome 🙂 Find the high res image here - https://files.catbox.moe/i48qph.png ![tagging-system - lowres.png](<a href="https://assets.leetcode.com/users/images/7849b47a-781a-4a9e-a31b-c99f8313928c_1770146852.6736298.png" target="_blank" rel="noopener" class="text-emerald-400 hover:text-emerald-300 underline">https://assets.leetcode.com/users/images/7849b47a-781a-4a9e-a31b-c99f8313928c_1770146852.6736298.png</a>)