•TOPIC
Real-time System Design Case Studies
14 Real-time case studies from Meta with full breakdowns.
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Companies
Topics
✓ 0Case studiesDifficultyAsked atPractice
Beginner

Advanced


+5
Advanced


+2
Advanced


+2
Intermediate
Food and Quick-Commerce Delivery Platform (Uber Eats / DoorDash)
Advanced6 min readGeospatialReal-timeE-commerce
Live Comments for Live Video (Facebook Live / TikTok Live)
Intermediate6 min readReal-timeMessagingDistributed Systems
Real-Time Online Auction (eBay / Live Auctions)
Advanced7 min readReal-timeDistributed SystemsPayments
Intermediate


Online Judge and Coding Contest Platform (LeetCode)
Intermediate6 min readDistributed SystemsSecurityScheduling
Advanced


+4
Frequently Asked Questions
What is Real-time in system design?
Real-time is a core system design topic covered in 51 case studies on InterviewSkool. It appears frequently in FAANG interviews, especially at Google, Amazon, and Meta.
How should I prepare Real-time 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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