System Design In Practice

Get ready for System Design Interviews using practical examples from Twitter, Instagram, TikTok, etc.

Table of contents

• News Feed
• GEO Base
• IM
• Live
• Video
• File Sync
• Search
• Ranking
• Trading
• Cooperative editing
• Booking
• Shopping
• CPU-bound
• Infrastructure

Table

Category	Resources	Tutorial
News Feed Twitter Instagram TikTok Pinterest	Real-Time Delivery Architecture at Twitter How We Learned to Stop Worrying and Love Fan-In at Twitter Sharding & IDs at Instagram Video Upload Latency Improvements at Instagram Improving Distributed Caching Performance and Efficiency at Pinterest	Video: How to build a social media photo sharing app on Google Cloud
GEO Base Uber Uber Eats Grab Lyft	Uber’s Fulfillment Platform: Ground-up Re-architecture to Accelerate Uber’s Go/Get Strategy Building Uber’s Fulfillment Platform for Planet-Scale using Google Cloud Spanner Deduping and Storing Images at Uber Eats Uber’s Next Gen Push Platform on gRPC S2 Geometry	Video: How does Uber scale to millions of concurrent requests?
IM WhatsApp Facebook Messenger WeChat LINE	Understanding WhatsApp's Architecture & System Design Understanding the Architecture & System Design of a Chat Application How WhatsApp enables multi-device capability How to build large-scale end-to-end encrypted group video calls * WhatsApp Encryption Overview
Live Facebook Live Twitch Zoom Google Meets	Scaling Facebook Live Videos to a Billion Users Ingesting Live Video Streams at Global Scale
Video YouTube Netflix Disney Plus HBO Max	Scaling Time Series Data Storage — Part I Netflix Video Quality at Scale with Cosmos Microservices Rethinking Netflix’s Edge Load Balancing Timestone: Netflix’s High-Throughput, Low-Latency Priority Queueing System with Built-in Support for Non-Parallelizable Workloads Building Netflix’s Distributed Tracing Infrastructure
File Sync Google Drive Dropbox Sync.Com iDrive	Rewriting the heart of our sync engine Boosting Dropbox upload speed and improving Windows’ TCP stack - Dropbox
Search Google Search Bing Airbnb Search Twitter Search	How Google Search Works (in 5 minutes) In-depth guide to how Google Search works How Google organizes information to find what you’re looking for Manas Realtime — Enabling changes to be searchable in a blink of an eye Under the Hood: Indexing and ranking in Graph Search Under the Hood: Building out the infrastructure for Graph Search Omnisearch index formats
Ranking Twitter Top Hashtags Spotify Top K Music	Trending on Instagram Fast and Reliable Ranking in Datastore How We Built Infrastructure to Run User Forecasts at Spotify Changing the Wheels on a Moving Bus — Spotify’s Event Delivery Migration Spotify’s Event Delivery – The Road to the Cloud (Part II)
Trading Robinhood Webull TradeStation		Video: How to build a modern banking app with Google Cloud Building a Real-Time Trading Platform with Redis
Cooperative editing Google Docs Microsoft Office Online Quip	What’s different about the new Google Docs: Making collaboration fast What’s different about the new Google Docs: Conflict resolution
Booking Google Calendar Ticketmaster StubHub
Shopping Amazon eBay Etsy AliExpress	Video: How to build digital e-commerce platform on Google Cloud Avoiding Double Payments in a Distributed Payments System Rebuilding Payment Orchestration at Airbnb Scaling Airbnb’s Payment Platform Cross shard transactions at 10 million requests per second	Video: How to build digital e-commerce platform on Google Cloud
CPU-bound LeetCode Video Editor		Video: How to build a three-tier serverless Cloud Run app
Infrastructure Key Value Store Web Crawl Object Storage Logging Monitoring	Building an Effective Test Pipeline in a Service Oriented World Dynein: Building an Open-source Distributed Delayed Job Queueing System Lessons learned in incident management How we designed Dropbox ATF: an async task framework Dropbox traffic infrastructure: Edge network #ExpandTheEdge: Making Twitter Faster Building DistributedLog: High-performance replicated log service Infrastructure Behind Twitter: Scale	Video: How to build a reliable, continuous delivery pipeline for GKE