Mastery

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Master the essential concepts and skills needed to excel in system design interviews

System Design Interview Guide

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Essential framework for answering system design questions - learn the structure, mindset, and key steps every interviewer expects

Interview StructureRequirements GatheringDesign MethodologyBest Practices
New

📘 The System Design Playbook

Pattern recognition, like LeetCode - hear a signal in the requirements, reach for the right architecture.

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🎯

Module 0 - The System Design Interview Framework

Beginner

Summary

System Design Questions

No practical problems available for this module.

🧱

Module 1 - Foundations of Modern Systems

Beginner

Summary

System Design Questions

Design a URL Shortening Service

Beginner

Design a global, high-traffic URL shortening service (like Bitly) that handles millions of URL creations and billions of redirects daily with extreme low latency and high availability.

💸

Module 2 - Data Consistency

Intermediate

Summary

System Design Questions

Design a Simple Banking System

Intermediate

Users can send money to each other.

⚡

Module 3 - Async Architecture

Locked

Intermediate

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

Design a News Feed System

Intermediate

Design a system to deliver a personalized, real-time news feed to users, similar to Twitter or Facebook.

📦

Module 4 - Storage, Files, and Object Stores

Locked

Intermediate

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

Design a File Upload Service

Intermediate

Users upload and access files.

🔎

Module 5 - Search

Locked

Intermediate

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

No active practical problems available for this module.

📈

Module 6 - Building Scalable Systems

Locked

Advanced

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

Design a Rate Limiter

Beginner

Design a system to limit the number of requests a user or client can make to an API in a given time window.

Design a Real-Time Chat App

Advanced

Design a real-time messaging system.

🕵️

Module 7 - Users, Identity, and Auth

Locked

Intermediate–Advanced

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

Design an Uber-like Ride-Sharing Service

Advanced

Design a real-time system to match riders with drivers, handle trip tracking, and process payments.

Design an eBay-like Bidding System

Advanced

Design a high-scale online auction platform that allows users to bid on items in real-time.

📷

Module 8 - Building Production Systems

Locked

Advanced

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

Design Instagram

Advanced

Design a photo-sharing social network.

Design Google Drive

Advanced

Design a cloud storage service for file synchronization and sharing.

🤖

Module 9 - AI Agent Systems

Locked

Intermediate–Advanced

Preview available — One-Year Membership unlocks lessons and quizzes

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System Design Questions

No active practical problems available for this module.

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