Free weekly newsletter
System design that actually sticks.
Join 75,000+ engineers. Every issue breaks down real systems and core concepts with visuals and interactivity — so you remember them when it matters.
No spam. Unsubscribe anytime.
Read by engineers and students from:
Fig. 01 — How we teach
See the idea, then step through it
Scale Engineer makes complex systems obvious. The newsletter carries the same craft — diagrams first, jargon last.
Fig. 01 — Binary search
00 · search 42 in a sorted array of 16
lo=0 hi=15 · target=42 · click a value to re-target
comparisons
0 / ⌈log₂ 16⌉ = 4
A real lesson component — press play, or click any value to retarget.
Fig. 02 — What you get
Every issue, three promises
Short enough to finish. Deep enough to change how you design systems.
- 01
Real-world case studies
How systems like Uber, Slack, and YouTube are built — architecture, trade-offs, and design decisions.
- 02
Visual explanations
No walls of text. Diagrams and interactive examples so databases, caching, and distributed systems stick.
- 03
Interview-ready patterns
Frameworks and architecture patterns used in system design rounds at top companies — and on the job.
Fig. 03 — Topics
What we cover
Case studies and fundamentals — the material top engineers actually need.
- How Uber scales rides
- How YouTube serves video
- Consistent hashing
- Database sharding
- Load balancing
- Caching strategies
- Message queues
- API design
- Microservices
- Event-driven architecture
- How Slack delivers messages
- Distributed systems
75,000+
Engineers subscribed
Weekly
Issues delivered
Free
No credit card
Subscribe
Join 75,000+ engineers
One sharp issue a week — system design, software engineering, and interview prep.
No spam. Unsubscribe anytime.