expertReal System Design Problems

Design a workflow automation system (like Zapier) that triggers actions based on configurable rules across many integrations.

Tests whether you can design a pluggable trigger-action engine that scales across arbitrary third-party integrations.

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Generate a complete, structured system design answer — requirements, capacity estimation, API design, architecture, database choice, scaling, caching, fault tolerance, security, trade-offs, and more, walked through the way a strong senior engineer would in a real interview.

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