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System Design Case Studies Tracker

37 case studies tagged Caching with full breakdowns.

176case studies
30companies
31topics
~5 minaverage read

Companies

Meta28Microsoft27Amazon23OpenAI23Google20TikTok16Anthropic15Salesforce15Apple12Uber12Atlassian11JPMorgan11LinkedIn11Goldman Sachs9Netflix9Oracle9Snowflake9Rippling8Airbnb7Bloomberg7Capital One7Databricks7Walmart7Flipkart6NVIDIA6Pinterest6Roblox6Adobe4Visa4Anduril1

Topics

Distributed Systems 90Real-time 51Storage 43Data Pipelines 42API Design 41Databases 38Caching 37Security 32AI / ML 23Algorithms 20Scheduling 20Search 19Event Driven 14Fintech 14Analytics 11E-commerce 11Geospatial 11Observability 11Payments 11Messaging 10CDN 9Ads 8Concurrency 8Frontend 8Booking System 6Networking 5IoT 4Collaboration 3Media 3Media Streaming 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 are system design case studies?

System design case studies are real-world architecture problems broken down into structured breakdowns. Each case study covers requirements, high-level design, scale estimates, API designs, and deep dives into key components.

How many system design case studies should I prepare?

For FAANG interviews, preparing 15-20 case studies covering core topics like caching, load balancing, and database sharding is recommended. Focus on understanding trade-offs rather than memorizing solutions.

Which companies ask system design case studies?

All FAANG companies (Google, Amazon, Meta, Apple, Microsoft) plus top tech companies like Netflix, Uber, and Airbnb ask system design case studies. Senior-level interviews almost always include at least one system design round.

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