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Caching System Design Case Studies
4 Caching case studies from Meta with full breakdowns.
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Companies
Topics
✓ 0Case studiesDifficultyAsked atPractice
Distributed Cache and the Hot Key / Cache Stampede Problem
Intermediate6 min readCachingDistributed SystemsDatabases
Advanced
Post Privacy and Visibility System (Facebook-style)
Advanced4 min readSecurityDistributed SystemsCaching
Intermediate


Frequently Asked Questions
What is Caching in system design?
Caching is a core system design topic covered in 37 case studies on InterviewSkool. It appears frequently in FAANG interviews, especially at Google, Amazon, and Meta.
How should I prepare Caching for system design interviews?
Study the case studies above, focusing on architecture trade-offs, scale estimates, and API designs. Practice explaining your decisions aloud — this is exactly what interviewers evaluate.
Practice with a Mock Interview
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