System design is taught badly.
Most system design content is written for people who already know system design. It's scattered across blog posts, assumes deep background knowledge, and optimises for interview prep over genuine understanding.
We think that's backwards. If you understand systems from first principles, the interview prep takes care of itself. So we built a course that starts at the very beginning — what is an HTTP request, really? — and builds up from there, one clean concept at a time.
Every module is interactive where it counts, skips the obvious, and respects your time. No padding, no five-minute video intros, no 40-slide decks. Just the concept, a simulation or example, vocabulary, and a quick check to make sure it landed.
46 modules. Two coherent arcs.
The course is structured as a progressive story — each module builds on the last. You won't understand Module 10 (load balancing) without Module 03 (HTTP), and you won't understand Module 03 without Module 01 (what a system is). The order matters.
The Beginner track (Modules 01–20) builds the foundation: requests, storage, caching, scaling, and production concerns.
The Intermediate track (Modules 21–46) goes distributed: consensus and replication, event-driven architecture, microservices in practice, stream processing — and two full capstone designs.
Three things we do differently.
First principles, not patterns
We don't start with design patterns. We start with "what is an HTTP request?" When you understand the primitives, patterns are just names for obvious arrangements.
Interactive, not passive
Every major concept has a simulation you can step through. DNS resolution, TCP handshakes, cache hit/miss ratios — you watch the data move, not just read about it.
Tight, not padded
Each module is 30–50 minutes. We cut anything that doesn't add understanding. No filler. If a section isn't earning its place, it's gone.
For developers who want to understand, not just pass.
This course is built for:
Junior developers who want to understand what happens beyond their code — what the infrastructure looks like, why it's designed that way, and how to talk about it fluently.
Self-taught engineers who skipped the distributed systems course and want to fill in the gaps without sitting through a full university curriculum.
Anyone preparing for system design interviews at tech companies — but who wants to learn the material properly, not just memorise templates.
You don't need a CS degree. You do need to be comfortable writing code and curious about how things work underneath.
Questions, feedback,
corrections?
This is a living course. If you spot an error, a concept that could be explained better, or have a topic you'd like to see covered, we genuinely want to hear from you.
Email: admin.systemdesigntutorial@gmail.com
Or visit our Contact page for more details.