System Design Interview

Scale From Zero To Millions Of Users
Back of the Envelope Estimation
A Framework For System Design Interviews
Design A Rate Limiter
Design Consistent Hashing
Design A Key-value Store
Design A Unique ID Generator In Distributed Systems
Design A URL Shortener
Design A Web Crawler
Design A Notification System
Design A News Feed System
Design A Chat System
Design A Search Autocomplete System
Design YouTube
Design Google Drive
Proximity Service
Nearby Friends
Google Maps
Distributed Message Queue
Metrics Monitoring and Alerting System
Ad Click Event Aggregation
Hotel Reservation System
Distributed Email Service
S3-like Object Storage
Real-time Gaming Leaderboard
Payment System
Digital Wallet
Stock Exchange

Digital Wallet

Digital Wallet #