10 Reasons to use Codemia.io for System Design Interview Preparation in 2025

Hello folks, in today’s tech industry, system design interviews have become a crucial part of the hiring process. Gone are the days where you can mug few Leetcode problems and crack any Tech interview.

Since now most of the engineers can solve Leetcode problems the bar is getting higher and higher and companies are looking for candidates who can design complex systems that are scalable, reliable, and efficient.

But this is not something you can master easily and you need extensive resources to learn key System design concepts and also practice them to create real systems which can take time.

If you don’t have that much time then you probably need a well designed approach and curated set of problems to learn System design quickly and that’s where Codemia.io can help you.

Codemia.io is a platform designed to help you master system design through active practice, much like how Leetcode helps with data structure and algorithm problems.

With over 120 problems, AI-driven feedback, and a supportive community, Codemia.io offers a comprehensive way to prepare for these challenging interviews.

In the past we have shared system design resources like best System Design courses, books, websites, newsletters, cheat sheets, mock interviews, blogs, tips, GitHub repo and white papers, and today, I am going to share my reasons to join Codemia.io for better System Design interview prep.

10 Reasons to Join Codemia.io for System Design Interfview Preparation in 2025

Here are ten reasons why you should join Codemia.io for your system design interview prep.

1. Extensive Problem Library

Codemia.io offers over 120 system design problems, ranging from easy to advanced. This extensive library ensures that you have ample material to practice and improve your skills.

It not only contains popular system design problems which have asked to FAANG companies earlier like designing Twitter or TinyURL but also many advanced questions which you may not have seen before.

Here is a list of their popular free and paid questions

1. Design TicketMaster (Free)
2. Design an Efficient Parking Lot System
3. Design a Fitness Tracking App
4. Design a Weather Reporting System
5. Design Pastebin

You can solve all these questions online and submit your solution in given format which is quite detailed. Once you submit the solution AI will give you feedback to find out issues and further improve your solution. This process really works well.

2. Real-World Scenarios

The problems on Codemia.io are based on real-world scenarios, helping you understand how to design systems that can handle real-world challenges. Examples include designing a URL shortening service, a parking lot system, Twitter, TicketMaster, and a video streaming platform.

3. Interactive Learning

Codemia.io provides an interactive learning experience. You can write down your solutions, receive AI-driven feedback, and iterate on your designs. This active learning approach helps you retain information better and understand concepts more deeply.

It also help you to learn System design by yourself as this is one of the topic which require discussion but with Chatbot and AI feedback you can discuss with AI and learn better.

In short, one of the best website to learn System designs for solo learners.

4. AI-Driven Feedback

One of the standout features of Codemia.io is its AI-driven feedback. After submitting your solution, you receive detailed feedback on various aspects of your design, such as scalability, fault tolerance, and efficiency.

This feedback helps you identify areas for improvement and refine your skills. In fact, that’s where you learn better and more.

5. Community Support

Codemia.io has a strong community of users who provide feedback on your solutions. You can also view other users’ submissions to learn different approaches to the same problem. This collaborative environment fosters learning and growth.

You can also see the solutions of others for many System design problems like TinyURL design and you can learn a lot from that.

At the moment there are not many solution as the site is new but I expect this are to grow exponentially and becoming another learning goldmine repo soon.

6. Structural Breakdown of Problems

Each problem on Codemia.io comes with a structural breakdown, helping you understand the key components and considerations for the design like functional and non functional requirement, high and low level design, back-of-envelope estimation etc.

Here is their format, which is very well designed and covere all bases:

This guidance is invaluable in helping you approach problems methodically and think through your designs.

7. High-Quality Solutions

Codemia.io also offers over 70 high-quality solutions to various problems. These solutions are written by experts and provide you with insights into best practices and optimal design strategies.

You can also get access to the solution by other engineers by clicking on the free questions and then clicking on solution as shown below:

When you click the green “Solutions” button you will see all the solutions

8. Practice Like a Pro

Codemia.io is used by professionals at top tech companies like Meta, Apple, Amazon, Netflix, Google, Stripe, Uber, and Microsoft. Learning from a platform trusted by industry experts gives you confidence that you are preparing effectively.

Also there are more than 120+ problems which will give you ample practice.

9. Save Time and Effort

With Codemia.io, you can save months of study time. The platform’s structured approach and focused practice sessions ensure that you are making the most of your preparation time, leading to better retention and understanding.

10. Proven Success

Many users of Codemia.io have landed their dream jobs at top tech companies. Testimonials from successful candidates highlight how the platform has helped them improve their skills and confidence, ultimately leading to job offers.

Should I Join Codemia.io for System Design Interview Prep in 2025? Is it worth it?

If you are preparing for System design interview and looking for a site to level up your system design skills by practicing then you must join Codemia.io.

With 120+ System design problems, structured and high-quality solutions, and AI feedback its completely worth it.

You also get community support and can see answers of others which is another way to learn System design better.

Overall I think its a great decision to join Codemia.io, its a great website and probably the best to practice system design problems online.

They are now also offering 30% discount and you can get the annual subscripting for just $69 instead of $99, which I think the best investment you can make.

Here is the link to join Codemia.io — 👉 Join Codemia.io

Conclusion

That’s all about the 10 reasons to join Codemia.io for System design preparation in 2025. Preparing for system design interviews can be daunting, but with Codemia.io, you have a powerful tool at your disposal.

From an extensive library of problems to AI-driven feedback and a supportive community, Codemia.io provides everything you need to succeed.

👉 Join Codemia.io today and take the first step towards acing your system design interviews and landing your dream job in tech.

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• Is Designing Data intensive application book worth reading?

Thanks for reading this article so far. If you like this article then please share with your friends and colleagues. If you have any questions feel free to ask in comments.

P. S. — They are also offering 30% discount now and you can get access for just $60 for one year, original price is $99 so you have a chance to save$30 and also learn System design better.