System Design Interview Preparation

Interview success depends less on memorizing boxes and more on a repeatable method: clarify goals, estimate scale, propose a baseline, stress failure modes, and iterate. This pillar ties the answering framework to concrete designs you can practice end to end.

Audience: Engineers interviewing for senior backend or Staff roles who need timed practice.

Curriculum

1. How to Answer a System Design Interview Problem
2. System Design Foundations — The Core Building Blocks
3. Design a URL Shortener (TinyURL)
4. Design a Rate Limiter
5. Rate Limiting Algorithms — Token Bucket, Windows, and Bursts
6. Design a Notification Service
7. Chat System Design — End-to-End Reference
8. Design a Distributed Job Scheduler
9. Design Dropbox / Cloud File Sync
10. CAP Theorem
11. Idempotency for APIs — Safe Retries Without Double Side Effects
12. Staff Engineer Interview Prep

By Shubham Jain. Last reviewed 2026-07-15.

Shubham Jain · Learning Lab