The proven path to passing your system design interview

Video lessons, written guides, quizzes, and Guided Practice crafted by FAANG interviewers.

Inside the System Design course

Watch a short excerpt from one of the full video lessons included with the course.

24 video lessons
17 quizzes
9 guided practices
~31 hof focused learning

From beginner to interview ready.

Video lessons with written guides
Quizzes after key concepts
Guided practice with AI feedback

Part 1 of 3

Fundamentals

01 Orientation

2 lessons · ~25 min

• Introduction Written lesson · ~10 min
• Delivery Framework Written lesson · ~15 min

02 Foundations

8 lessons · ~285 min · 4 videos · 4 quizzes

• Networking Essentials Video and guide · ~125 min
• Networking Essentials Quiz · ~5 min
• API Design Video and guide · ~50 min
• API Design Quiz · ~5 min
• Data Modeling Video and guide · ~45 min
• Data Modeling Quiz · ~5 min
• Database Indexing Video and guide · ~45 min
• Database Indexing Quiz · ~5 min

03 Thinking in Scale

10 lessons · ~165 min · 4 videos · 5 quizzes

• Caching Video and guide · ~45 min
• Caching Quiz · ~5 min
• Sharding Video and guide · ~50 min
• Sharding Quiz · ~5 min
• Consistent Hashing Video and guide · ~15 min
• Consistent Hashing Quiz · ~5 min
• CAP Theorem Video and guide · ~20 min
• CAP Theorem Quiz · ~5 min
• Numbers to Know Written lesson · ~10 min
• Numbers to Know Quiz · ~5 min

Part 2 of 3

The Patterns

04 Scaling Reads

6 lessons · ~225 min · 3 videos · 1 quiz · 1 practice

• Bitly First attempt · ~40 min
• Bitly Optional video review
• Scaling Reads Video and guide · ~55 min
• Scaling Reads Quiz · ~5 min
• PostgreSQL Written lesson · ~35 min
• Redis Video and guide · ~50 min
• News Aggregator Harder breakdown · ~40 min

05 Scaling Writes

5 lessons · ~235 min · 4 videos · 1 quiz · 1 practice

• Scaling Writes Video and guide · ~45 min
• Scaling Writes Quiz · ~5 min
• Kafka Video and guide · ~70 min
• Cassandra Video and guide · ~55 min
• Ad Click Aggregator Guided practice · ~60 min
• Ad Click Aggregator Optional video review

06 Real-time Updates

4 lessons · ~170 min · 2 videos · 1 quiz · 1 practice

• FB Live Comments First attempt · ~40 min
• FB Live Comments Optional video review
• Real-time Updates Video and guide · ~85 min
• Real-time Updates Quiz · ~5 min
• WhatsApp Harder breakdown · ~40 min

07 Dealing with Contention

4 lessons · ~105 min · 1 video · 1 quiz · 1 practice

• Ticketmaster First attempt · ~40 min
• Ticketmaster Optional video review
• Dealing with Contention Written lesson · ~30 min
• Dealing with Contention Quiz · ~5 min
• Online Auction Harder breakdown · ~30 min

08 Multi-step Processes

4 lessons · ~135 min · 1 video · 1 quiz · 1 practice

• Notification System First attempt · ~40 min
• Multi-step Processes Video and guide · ~45 min
• Multi-step Processes Quiz · ~5 min
• Payment System Harder breakdown · ~45 min

09 Handling Large Blobs

4 lessons · ~90 min · 1 video · 1 quiz · 1 practice

• Dropbox First attempt · ~40 min
• Dropbox Optional video review
• Handling Large Blobs Written lesson · ~15 min
• Handling Large Blobs Quiz · ~5 min
• YouTube Harder breakdown · ~30 min

10 Managing Long Running Tasks

4 lessons · ~100 min · 1 video · 1 quiz · 1 practice

• LeetCode First attempt · ~40 min
• LeetCode Optional video review
• Managing Long Running Tasks Written lesson · ~20 min
• Managing Long Running Tasks Quiz · ~5 min
• Web Crawler Harder breakdown · ~35 min

11 Proximity-Based Services

4 lessons · ~130 min · 1 video · 1 practice

• Yelp First attempt · ~40 min
• Yelp Optional video review
• Proximity Search Written lesson · ~20 min
• Elasticsearch Written lesson · ~30 min
• Uber Harder breakdown · ~40 min

Part 3 of 3

Put It All Together

12 Final Designs

3 lessons · ~170 min · 2 videos · 1 quiz · 1 practice

• FB News Feed Guided practice · ~60 min
• FB News Feed Optional video review
• Metrics Monitoring Video and guide · ~105 min
• Metrics Monitoring Quiz · ~5 min

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