Interview Sprint

Short path for interview prep: answering framework, then high-frequency designs (rate limiter, chat, feed, notifications).

Level: intermediate · Duration: 2 weeks · Focus: Interviews, Rate limiting, Realtime, Feeds

Articles

1. System Design Interview Answering Framework
2. Design a Rate Limiter — Interview Walkthrough
3. Design a URL Shortener — Interview Walkthrough
4. Design WhatsApp — 1:1 and Group Messaging
5. Design Instagram — Photos, Feed, and Fan-Out
6. Design a Notification Service — Push, Email, SMS
7. Idempotency for APIs — Safe Retries Without Double Side Effects
8. Circuit Breakers and Cascading Failure Control — Stop One Fire From Burning the Block

All study paths · Practice quizzes

Shubham Jain · Learning Lab