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Databases System Design Case Studies

4 Databases case studies from JPMorgan with full breakdowns.

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Companies

TikTok5Amazon4Atlassian4JPMorgan4Microsoft4Airbnb2Apple2Databricks2Flipkart2Goldman Sachs2Meta2Snowflake2Visa2Walmart2Anthropic1Bloomberg1Capital One1Google1LinkedIn1Netflix1NVIDIA1Oracle1Pinterest1Roblox1Salesforce1Uber1

Topics

Distributed Systems 90Real-time 51Storage 43Data Pipelines 42API Design 41Databases 38Caching 37Security 32AI / ML 23Algorithms 20Scheduling 20Search 19Event Driven 14Fintech 14Payments 11Geospatial 11Analytics 11Observability 11E-commerce 11Messaging 10CDN 9Concurrency 8Ads 8Frontend 8Booking System 6Networking 5IoT 4Media 3Media Streaming 3Collaboration 3Rate Limiting 2
JPMorgan✕Databases✕Clear all
University Course Registration System
4 min readBooking SystemDatabasesConcurrency
Intermediate▶ Mock
E-commerce Shopping Website (and Fixing Cart Latency)
5 min readE-commerceCachingDatabases
Intermediate▶ Mock
Optimizing Slow Queries on a Million-Row Table
3 min readDatabasesCaching
Beginner▶ Mock
Explaining Your Own Project Architecture (and Scaling It Up)
5 min readDistributed SystemsDatabasesCaching
Beginner▶ Mock

Frequently Asked Questions

What is Databases in system design?

Databases is a core system design topic covered in 38 case studies on InterviewSkool. It appears frequently in FAANG interviews, especially at Google, Amazon, and Meta.

How should I prepare Databases 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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