CodeWithJay

Architecture & system design

Learn System Design — free and paid courses, roadmaps

System design is how you decide what to build before you build it: which services, which databases, where the caches and queues go and what happens when traffic grows tenfold. CodeWithJay teaches it through a full e-commerce system design series (requirements, HLD, database schema), short lessons on CAP, back-of-the-envelope maths, CDNs and load balancers, and the deployable microservices that prove the designs work.

Where to start with System Design

A suggested order: try a free lesson first, then commit to a full course or roadmap.

  1. Step 1

    Start free

  2. Step 2

    Go deeper with a full course

System Design courses

In-depth, project-based System Design courses. Included with a CodeWithJay membership.

System Design mini courses

Short, free lessons on one System Design idea at a time — showing 12 of 29.

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Free System Design video tutorials

Full-length free lessons from the CodeWithJay YouTube channel — showing 12 of 25.

Free courses library →

System Design learning FAQ

Can I learn System Design for free on CodeWithJay?
Yes. CodeWithJay currently has 29 free mini courses and 25 free video lessons on System Design. Free courses need only a free account; mini courses and videos need no account at all.
What System Design courses does CodeWithJay offer?
There are 3 full courses covering System Design: Mastering E-Commerce Architecture: A Step-by-Step System Design Guide, Modern Scalable Deployment for Microservices & Frontend Backend and How to Build Scalable E-Commerce Platforms with Go Monolithic & Microservices Overview. Paid courses are also included with a CodeWithJay membership.
Where should I start learning System Design?
Start with something free, such as "Back of the Envelope Math in the First Five Minutes of a System Design Interview #codeprep #ddev", to get a feel for the topic, then move on to a full course or roadmap for structured, project-based learning.

Looking for something else?

Browse every technology CodeWithJay teaches, or get every paid course with one membership.

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