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Hello devs, if you are preparing for software engineer interviews then you may know that System design interviews is the biggest hurdle in your way.
In the last decade System design interviews have become an integral part of the hiring process for many tech companies, especially for senior and architect roles.
These interviews assess your ability to design scalable, reliable, and efficient systems --- skills essential for building modern software applications.
Preparing for these interviews can be challenging due to their broad scope and complexity. No matter how much experience you have, you may not get exposure to certain areas, and many people don't even get a chance to design a system from scratch.
However, good resources can help you master system design concepts and excel in your interviews.
If you're preparing for a system design and coding interview in 2025, you're in luck! I have compiled a list of the 15 best resources to help you ace your interview.
In the last few articles, I have shared many popular system design questions like , and today I am going to share the best System Design Interview resources for interviews.
These resources include websites, online courses, and obviously books but also newsletters, which you can subscribe to for free to get regular updates about System Design and Software Engineering.
So let's jump into them.
15 Best Resources to Prepare for System Design Interviews in 2025
Here are the *15 best resources to prepare for system design interviews in 2025, we will start with websites and online courses then we will see books, and blogs, and finally we will see newsletters which you can subscribe to stay updated with System design concepts.
1. ByteByteGo
plus additional content.
It also has System design diagrams that break down complex system design topics into easy-to-understand pieces.
ByteByteGo is particularly known for its visual approach to explaining system design concepts.
If you are a visual learner then you will love this site,
Here is the link to join ---
You can also use the bytebytego discount code JALJAD to get a 10% discount.
2. Codemia.io
is another great website which is created by ex-Facebook and Microsoft developers to help you get better results on FAANG interviews.
It's best known for its courses, which have been helping many FAANG aspirants for the last few years.
It has text-based courses but they are very detailed and helped many folks on system design and coding interview preparation.
By the way, DesignGurus.io has many other Grokking courses to prepare for essential coding interview topics like OOP Design, System Design, Dynamic Programming, etc and you can get access to all of their courses for a big discount by joining their
You can also use code GURU to get a 30% discount.
4. Exponent
.
The platform features mock interviews, video lessons, and detailed guides on various system design topics. Exponent's courses are created by industry professionals with experience at top tech companies.
They have also got a huge collection of company-wide interview questions, almost 2300 and they also run a member-only Slack community where members discuss recent interview questions.
For all these reasons, I highly recommend you
And here is a nice System Design cheat sheet for quick reference.
is a well-known online learning platform that offers numerous courses on system design. These courses cover everything from the basics to advanced concepts, with practical examples and real-world scenarios.
While I have many reasons to take
2.
4.
6. Educative.io
4.
to get access to their 1000+ high-quality, AI-powered, text-based, interactive courses to learn key skills for coding interviews, software development, and technology.
by Alex Xu is a must-read book for anyone preparing for system design interviews.
The book provides a step-by-step approach to tackling system design problems, with detailed explanations and examples.
It's a valuable resource for understanding the thought process and techniques used by experienced engineers.
I highly recommend you read all three books in this series, namely
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You may get a discount when you buy all three books.
8. Zero To Mastery (ZTM) Academy
.
The course covers essential system design topics, including scalability, reliability, and maintainability. ZTM's hands-on approach ensures that you gain practical experience in designing complex systems.
Created by legendary instructor Andrei Neagoie, it is a great site that is modeled in an online boot camp for learning programming and web development skills.
where you can get all his courses for just one subscription. It costs around $39 per month but is worth it. You can also use coupon code FRIENDS10 to get a 10% discount now.
9. Coursera
from the University of Alberta, which contains a couple of nice courses related to software design.
which gives you unlimited access to their most popular courses, specializations, professional certificates, and guided projects.
It costs around $59/ per month or $399 per year but is worth it because you get access to more than 7000+ courses and projects, and you can also get unlimited certificates.
10. GitHub
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is a collection of freely available resources compiled by various educators and engineers.
These courses cover a wide range of system design topics and are perfect for those who prefer self-paced learning without any financial investment.
by Martin Kleppmann is a highly recommended book for understanding the intricacies of data-intensive systems.
The book covers key concepts such as data modeling, distributed systems, and stream processing, making it a valuable resource for system design interview preparation.
by Ashish Pratap Singh is a newsletter focused on algorithms and system design.
It provides regular updates, insights, and problem-solving techniques to help you stay sharp and ready for your system design interviews.
14. System Design One
The
15. AlgoMonster
for quick revision
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