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Data Pipelines System Design Case Studies

6 Data Pipelines case studies from Apple with full breakdowns.

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Ad Click and Impression Aggregator
6 min readAdsAnalyticsData Pipelines
Advanced+2▶ Mock
Centralized Logging System (ELK / Splunk)
6 min readObservabilityData PipelinesSearch
Intermediate+1▶ Mock
Multimodal RAG Assistant over an Internal Knowledge Base
4 min readAI / MLSearchData Pipelines
Advanced▶ Mock
News Aggregator (Google News)
6 min readSearchData PipelinesCaching
Intermediate▶ Mock
Data Engineering for a Short-Video App (TikTok-scale)
4 min readData PipelinesAnalyticsStorage
Advanced▶ Mock
Smartwatch Sensor Subsystem Design
4 min readIoTReal-timeData Pipelines
Intermediate▶ Mock

Frequently Asked Questions

What is Data Pipelines in system design?

Data Pipelines is a core system design topic covered in 42 case studies on InterviewSkool. It appears frequently in FAANG interviews, especially at Google, Amazon, and Meta.

How should I prepare Data Pipelines 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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