A focused course on systems design interviews. Whiteboard-ready patterns for scale, storage, queues and cache. You'll move through six short lessons at your own pace, with practical exercises after each one and a small project you can actually show off.
Marcus Hale
Instructor · Coding
What you'll leave with
Speak fluently about coding at a advanced level
Build a portfolio-ready artifact you can share
Develop a personal practice you'll keep after the course
Get feedback from a live AI tutor as you go
Curriculum
Every module is a short video, a written recap, and a small exercise. Preview the first 2 lessons free — no card required.
Setup and mental model
Free previewA hands-on lesson on setup and mental model — short, focused, and built to practice.
Core primitives, in practice
Free previewA hands-on lesson on core primitives, in practice — short, focused, and built to practice.
State, side-effects and flow
A hands-on lesson on state, side-effects and flow — short, focused, and built to practice.
Testing and confidence
A hands-on lesson on testing and confidence — short, focused, and built to practice.
Performance and polish
A hands-on lesson on performance and polish — short, focused, and built to practice.
Ship: real production build
A hands-on lesson on ship: real production build — short, focused, and built to practice.
Instructor
Marcus Hale teaches coding with a practitioner's eye — a decade of client work and a lot of unlearning of textbook advice.
Lifetime access, an AI tutor, and a 30-day money-back guarantee. No subscription required.