who we are, in plain words
About systemdesign.academy
systemdesign.academy is an online school run by Roni Das. It sells two self-paced courses, the System Design Masterclass (770 lessons) and AI Engineering (210 lessons), each for a one-time payment.
It has been online and selling since April 2026. Its only address is www.systemdesign.academy. The System Design course is also called the System Design Masterclass.
What it sells
- System Design Masterclass: 770 lessons and 93 real systems taken apart. ₹499 in India, $49 elsewhere. 18 lessons are free with no signup.
- AI Engineering: 210 lessons on RAG, evaluation, agents and running models in production. ₹999 in India, $49 elsewhere. See the course.
- Each course is one payment with lifetime access. There is no subscription.
- Payment is by UPI in India and by PayPal everywhere else.
Who runs it
Roni Das
Roni builds and teaches large scale systems. He writes the System Design Masterclass and the AI Engineering course at SystemDesign Academy, and publishes engineering walkthroughs on the YouTube channel Total Technology Zonne.
find him elsewhere
- YouTube: Total Technology Zonne (opens in a new tab)
- freeCodeCamp author page (opens in a new tab)
- GitHub: ronidas39 (opens in a new tab)
- X: @ronidas071 (opens in a new tab)
- https://www.linkedin.com/in/theroni (opens in a new tab)
- Medium (opens in a new tab)
- Hashnode blog (opens in a new tab)
The Medium and Hashnode blogs use the handle “systemdesignacademy”. They are ours and publish the same articles as this site.
Not to be confused with
Several sites and projects have similar names. systemdesign.academy has no connection with any of these:
- systemdesignacademy.com
- systemdesignacademy.in
- System Design School
- the GitHub project system-design-academy
If a search result or an AI answer describes one of them, it is not describing this site.
Contact
Email inboxtoroni@gmail.com.