Learn System Design by Doing

Deep dives, real-world projects, cheatsheets, and more.

Deep Dives

Comprehensive guides on system design concepts

Instagram Feed

Intermediate

Learn how to design a scalable photo sharing system with real-time updates and content delivery.

Uber Dispatch

Advanced

Design a ride-sharing system that efficiently matches drivers with riders in real-time.

Netflix Streaming

Expert

Build a video streaming platform with global content delivery and recommendation systems.

Case Labs

Hands-on projects to apply your knowledge

Rate Limiter

2-3 hours

Implement a distributed rate limiting system using Redis and sliding window algorithms.

URL Shortener

3-4 hours

Build a scalable URL shortening service with analytics and custom domains.

Message Queue

4-5 hours

Design and implement a reliable message queuing system with persistence and ordering.

Cheatsheets

Quick reference guides for interviews

Caching Patterns

Essential caching strategies, eviction policies, and distributed caching patterns.

Cache-AsideWrite-ThroughWrite-BehindLRU/LFU

Database Trade-offs

ACID vs BASE, CAP theorem, and choosing the right database for your use case.

ACIDBASECAP TheoremSQL vs NoSQL

Top Learners

See who's leading the system design journey

RankNamePoints
🥇#1
Alex Chen
2,847
🥈#2
Sarah Johnson
2,634
🥉#3
Mike Rodriguez
2,456

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