•TOPIC

Caching System Design Case Studies

InterviewSkool tracks 37 Caching case studies with architecture diagrams, scale estimates, and deep dives.

Filter by company to see which companies ask Caching questions, or browse all case studies.

🔒

to save your progress.

Companies

Microsoft5JPMorgan4Meta4Netflix4TikTok4OpenAI3Roblox3Uber3Adobe2Amazon2Apple2Goldman Sachs2Pinterest2Rippling2Snowflake2Walmart2Airbnb1Anduril1Atlassian1Bloomberg1Capital One1Databricks1Google1LinkedIn1NVIDIA1Visa1

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
Caching✕Clear all
Access Control System (RBAC + Resource Permissions)
6 min readSecurityDatabasesAPI Design
Intermediate▶ Mock
Ad Frequency Capping Service (Netflix Ads)
7 min readAdsReal-timeCaching
Advanced▶ Mock
Ads Audience Targeting System
5 min readAdsData PipelinesCaching
Advanced▶ Mock
Android MVVM Architecture for API-Driven Screens
4 min readFrontendAPI DesignCaching
Intermediate▶ Mock
Cloud Console Home Page (Backend-for-Frontend)
4 min readFrontendAPI DesignCaching
Intermediate▶ Mock
Color Suggestion System (Adobe)
4 min readAI / MLAPI DesignCaching
Intermediate▶ Mock
Credit Card Customer Portal
5 min readFintechSecurityAPI Design
Beginner▶ Mock
Daily Puzzle Platform (Wordle-style)
3 min readAPI DesignCachingDatabases
Beginner▶ Mock
Inventory Serving on Spinning Disks with Little RAM
5 min readStorageDatabasesAlgorithms
Advanced▶ Mock
Distributed Cache and the Hot Key / Cache Stampede Problem
6 min readCachingDistributed SystemsDatabases
Intermediate▶ Mock
E-commerce Shopping Website (and Fixing Cart Latency)
5 min readE-commerceCachingDatabases
Intermediate▶ Mock
Faceted Product Search at Large Scale (Amazon)
4 min readSearchE-commerceDistributed Systems
Intermediate▶ Mock
Flight Search Platform (Google Flights / Kayak)
4 min readSearchCachingData Pipelines
Advanced▶ Mock
Governed Data Service for Downstream Consumers
3 min readAPI DesignData PipelinesSecurity
Intermediate▶ Mock
Low-Latency Holiday Lookup Service
4 min readCachingAPI DesignFintech
Beginner▶ Mock
Streaming Homepage Rows with Viewport Loading and Deduplication (Netflix)
4 min readFrontendAPI DesignCaching
Intermediate▶ Mock
Fast Host Listings Metrics Page (Airbnb)
4 min readAnalyticsDatabasesCaching
Intermediate▶ Mock
Scalable Likes System and Like Counter
5 min readDistributed SystemsCachingDatabases
Intermediate▶ Mock
Malicious IP and URL Detection Service
5 min readSecurityReal-timeCaching
Advanced▶ Mock
Personal Finance Dashboard from Multiple Providers
3 min readFintechAPI DesignCaching
Intermediate▶ Mock
News Aggregator (Google News)
6 min readSearchData PipelinesCaching
Intermediate▶ Mock
Online Bookstore with Price Aggregation
7 min readE-commerceAPI DesignCaching
Intermediate▶ Mock
Optimizing Slow Queries on a Million-Row Table
3 min readDatabasesCaching
Beginner▶ Mock
Pastebin (Share Text by Link)
4 min readStorageCachingAPI Design
Beginner▶ Mock
"Played by Your Friends" Social Summary (Roblox)
3 min readDistributed SystemsCachingReal-time
Intermediate▶ Mock
Post Privacy and Visibility System (Facebook-style)
4 min readSecurityDistributed SystemsCaching
Advanced▶ Mock
E-commerce Product Catalog and Price Updates
6 min readE-commerceCachingDatabases
Intermediate▶ Mock
Explaining Your Own Project Architecture (and Scaling It Up)
5 min readDistributed SystemsDatabasesCaching
Beginner▶ Mock
Proximity Search (Yelp / Nearby Restaurants)
7 min readGeospatialSearchCaching
Intermediate▶ Mock
Publisher Configuration Rules and Safe Global Rollout
5 min readAdsDistributed SystemsCaching
Intermediate▶ Mock
Global Restaurant Chain Menu Update System
4 min readDistributed SystemsCDNCaching
Intermediate▶ Mock
Scaling a Rules Engine for High Traffic (Rippling)
3 min readDistributed SystemsAlgorithmsEvent Driven
Advanced▶ Mock
Runtime Localization System (i18n)
4 min readFrontendAPI DesignCDN
Intermediate▶ Mock
Aggregator Service over Many Downstream Microservices
3 min readDistributed SystemsAPI DesignCaching
Intermediate▶ Mock
To-Do List Service (REST API and Real-Time Shared Lists)
5 min readAPI DesignReal-timeCollaboration
Beginner▶ Mock
Typeahead / Search Autocomplete
6 min readSearchCachingData Pipelines
Intermediate▶ Mock
URL Shortener (TinyURL / bit.ly)
7 min readDistributed SystemsCachingStorage
Beginner+4▶ Mock

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

Apply these Caching case studies in a live system design mock interview with InterviewSkool's AI interviewer.

Start System Design Interview →