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Distributed Systems System Design Case Studies

7 Distributed Systems case studies from LinkedIn with full breakdowns.

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Instagram
17 min readDistributed SystemsMediaSearch
Advanced+2▶ Mock
Reviewing an Existing Architecture for Risks
6 min readDistributed SystemsSecurityObservability
Intermediate▶ Mock
Calendar Service (Google Calendar)
6 min readSchedulingDistributed SystemsStorage
Intermediate+2▶ Mock
CI/CD Platform (GitHub Actions / Jenkins)
7 min readSchedulingDistributed SystemsStorage
Advanced▶ Mock
Distributed Job Scheduler (Cron at Scale)
7 min readSchedulingDistributed SystemsEvent Driven
Advanced+7▶ Mock
Distributed Key-Value Store (DynamoDB / Cassandra)
7 min readDatabasesDistributed SystemsStorage
Advanced+2▶ Mock
Malicious IP and URL Detection Service
5 min readSecurityReal-timeCaching
Advanced▶ Mock

Frequently Asked Questions

What is Distributed Systems in system design?

Distributed Systems is a core system design topic covered in 90 case studies on InterviewSkool. It appears frequently in FAANG interviews, especially at Google, Amazon, and Meta.

How should I prepare Distributed Systems 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.

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