Thursday, May 14, 2026

I found Leetcode for System Design and its Awesome

I Found Codemia.io, Leetcode for System Design Interview, and It’s Awesome
credit- codemia.io

Hello guys, If you’re preparing for FAANG interviews, then you already know that Data Structures & Algorithms (DSA) and System Design are two key areas where you will be tested rigorously.

While LeetCode is the go-to platform for DSA, system design has always been a challenge.

While there are many websites and platforms to prepare for System Design Interviews like ByteByteGo, DesignGurus.io, Exponent, Educative, and Udemy, there is nothing like LeetCode. 

These are great resources to learn fundamentals, go through case studies and understand the theory part of the System design but LeetCode style practice is one thing which missing - until now. 

I recently found Codemia.io, and I must say, it feels like the LeetCode for System Design.

If you’ve struggled with structuring your system design answers, getting real feedback, or knowing whether your approach is correct, Codemia.io is a game-changer.

They not just have the biggest collection of System Design and OOP Design problem for practice they also have a free System deign course called Tackling System Design Interview Problems, which is a great free resource to learn essential System Design concepts.

It’s a short course with 2 hour of content but powerful and also have quizzes to test your skills. Here are all the key System deign topics you can learn on this free course:

Now, let’s checkout how Codemia.io can help you to prepare better for your System design and OOP Design interview and why I think its like Leetcode for System design.

Why System Design Needs a Platform Like Codemia.io?

Most system design resources today are long, text-heavy articles or expensive courses. The problem?

  1. No hands-on practice — Reading about system design isn’t enough; you need to actively design solutions.
  2. No structured progression — Unlike DSA, where problems are categorized by difficulty, system design prep often feels random and overwhelming.
  3. No evaluation or expert feedback — You don’t just need an answer; you need to know why one design is better than another.

This is where Codemia.io changes the game.

What Makes Codemia.io Special?

Instead of just giving you theory-heavy content, Codemia.io provides an interactive, structured, and guided approach to system design. Here’s what I loved:

1. Real-World System Design Problems

Codemia.io has over 120+ system design problems, each with a structured approach similar to how LeetCode presents DSA problems.

For example, consider the classic “Design a URL Shortening Service” problem.

You start with:
1. Functional and Non-Functional Requirements
2. Capacity Estimation
3. Database Schema and API Design
4. High-Level & Low-Level Design

It guides you step by step so you don’t feel lost.

Bonus: You also get access to a drawing board where you can sketch your architecture, just like in a real system design interview.

And most importantly they also share expert solution for most of the problems to see how an expert should answer that question. For example, here is the solution of how to design a URL shortening service and its also available for free

2. Difficulty-Based Categorization

Just like LeetCode, both System design and object oriented design problems are categorized as:

  • Easy — Foundational concepts like Load Balancing, Caching, Message Queues
  • Medium — Scenarios like Rate Limiting, Search Autocomplete, Real-Time Chat Systems
  • Hard — Complex designs like Distributed Databases, Cloud Storage, and Microservices Architecture

Each problem also includes company tags so you can focus on what’s asked at FAANG and other top tech companies. For example, this how to design Twitter problem is a medium scale problem which you can see to get some experience. It’s also free.

3. AI-Powered Hints & Evaluations

One of the best features is AI-assisted guidance. You get to chat with the coach — the AI agent which will help you with the question and solution.

1. If you get stuck, AI provides hints — just like LeetCode’s hint system.
2. If you submit a design proposal, AI evaluates it against industry best practices.
3. You get automated feedback on scalability, fault tolerance, and efficiency.

This bridges the gap between self-learning and expert mentorship.

Beyond System Design: Object-Oriented Design & AI Interviews

Codemia.io goes beyond just system design. It also covers Object-Oriented Design (OOD) Questions. If you don’t know , Object-Oriented Design is a common low-level design (LLD) round at FAANG.

Here are OOP problems you can solve on codemia.io to get some practice:

  • Classic problems like Parking Lot, ATM Machine, and Hotel Booking System
  • Step-by-step UML diagrams and class structure explanations
  • Comparison of different design patterns

If you struggle with OOD interviews, this is a goldmine.

Here is also all the OOP design problems available on Codemia.io

Codemia.io vs DesignGurus.io vs Educative

Now, let’s see how codemia.io compares with other popular resources we have used in past to prepare for System Design interview, notably DesignGurus.io whose Grokking the System Design Interview course is also one of my favorite and Educative.io, whose modern System design course is also a great resource.

You can see that codemia.io have highest number of practice problems, 120+ and growing, no other platform have that many questions which is also the big plus point of this platform and that’s why I called it “Leetcode of System Design”.

Second important point is expert written solution, also known as editorial solution in this website. There are mor than 80+ such solution which are great resource to compare your solution, learn from them and also find how to answer such questions.

What point to mention, what should you discuss, tradeoffs and so much more.

Another plus point of codemia.io is that it has object oriented programming questions which is not available in other courses, though DesignGurus.io have Grokking the Object Oriented Design Interview course which you can use for OOP design practice, but again when it comes to numbers, codemia.io wins.

So far we have compared the content but if we talk about platform, codemia.io have especially designed for online practice, particulary deisgn questions.

It comes with Interactive learning tools, interactive feedback and evaluation, chatbot and a great design tool for drawing. No other platform support so much feature which is essential to master system design.

Then there is community and you can also see the solution of other folks to learn from them. I love this feature as it allows me to see what other folks are thinking and how they solve that problem. This comparative analysis have helped me a lot to learn key system design concepts.

Overall, I think, codemia.io is a great platform to prepare for System design and OOP design interview. You may find courses but its hard to find a platform like this.

I highly recommend it for anyone preparing for System Design and Tech interviews. And, if you want to join now, you can also use discount code PROMOTION20 to get 20% off now.

Here is the link — 20% OFf on Codemia.io

Final words

If you’re preparing for FAANG system design interviews, Codemia.io is a must-try. It solves the biggest problems in system design prep:

  • Structured learning path (instead of random articles)
  • Real-world hands-on practice (instead of just reading)
  • Expert evaluation & AI feedback (so you know what to improve)
  • Mock interviews to simulate real conditions

I’m still exploring Codemia.io, but what I’ve seen so far is truly impressive.

If you’ve tried it, let me know what you liked or didn’t like.

Other System Design Articles and Resources you may like

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 20% discount now and you can get access for just $59 for one year, original price is $120 so you have a chance to save$60 and also learn System design better.

Master System Design Interviews Through Active Practice

Passively learning system design does not work. Now you can practice system design problems like the way you practice…

codemia.io

    By javin paul at May 14, 2026 0 comments
    Labels: Codemia.io , LeetCode , Review , System Design , System Design Interview

    Wednesday, May 13, 2026

    I Tried Google IT Support Professional Certificate on Coursera and It's Awesome

    Is Google IT Support Professional Certificate Worth It

    Hello guys, if you want to start your career in the IT support field and looking for resources and wondering whether Coursera is a good place to learn IT Support or not then you have come to the right place.

    When it comes to learning IT Support skills I can’t think of a better resource than the Google IT Support Professional Certification on Coursera.

    This is one of the most comprehensive programs designed for both beginner and intermediate IT professionals to learn all the essential skills required in IT Support like knowledge of Operating Systems, Linux commands, Troubleshooting, etc.

    In the past, I have recommended this certification and also wrote a detailed review where I have shared all the skills this program teaches you, but a lot of people ask me if should they join this certification in 2026 or now.

    That’s why I am writing this new article as a lot has changed since this certification was first launched.

    With the introduction of AI many jobs are changing shape and its high time developers, support folks should adopt AI to stay relevant.

    But, the good thing is Google has kept this certification up-to-date and they have now also included new video lectures on how to use AI for IT Support activities.

    For example, they have now added 6 new lessons which will help you to

    1. Boost your IT support skills with AI
    2. Leverage AI for faster troubleshooting
    3. Communicate technical concepts with AI
    4. Automate routine IT tasks with AI
    5. Simplify IT documentation using AI
    6. Use AI to identify IT security risks

    You can see that it has now become even more useful as AI is the key skill in coming years and if you don’t learn AI to do your job better or improve your productivity, most likely you will be left behind.

    So, let’s deep dive into this amazing program from Google and Coursera to find out its worth in 2026.

    However, if you have already made up your mind to join this professional certificate then you can join now, more than 1.7 million folks have already joined, it's worth it and you will thank me later.

    Here is the link to join this program — Google IT Support Professional Certification

    Is Google IT Support Professional Certificate Worth It

    By the way, If you are planning to join multiple Coursera courses or specializations, then consider taking a Coursera Plus subscription which provides you unlimited access to their most popular courses, specializations, professional certificates, and guided projects.

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    Why Join Google IT Support Professional Certificate on Coursera in 2026? Is it worth it?

    Let’s deep dive into this most popular Google certification on Coursera to find out if you can join this to start your career in IT support or not.

    1. It’s from the Google

    This professional certification is offered by a team named Grow with Google which is considered an initiative launched in 2017 in collaboration with many organizations and other companies with around 7000 partners to offer online courses worldwide for all people.

    Grow With Google has created around 14 courses on Coursera (known as Google Career Certifications) alone and their courses get more than 900k enrollment in IT, Cloud Computing, as well as Security and programming such as Python making this initiative one of the most successful in the world for making online learning accessible for everybody.

    2. The Course Content and Structure

    This course certification contains 5 small courses designed to prepare you for an entry-level in the IT industry and teach you a lot of stuff such as operating systems like Linux and Windows as well as networking security and filesystems and much more. So let’s what you will learn in each course:

    2.1. Technical Support Fundamentals

    The first course in this professional certificate is designed to teach you how computers work in both the hardware as well as the software like operating systems and internet, networking, etc.

    You will also understand many terms and concepts of computer science like how a binary system works how language instruction can be read in computers and much more so this course has a big impact on your understanding in the next course.

    Here is the link to join this course for FREE — Technical Support Fundamentals

    2.2. The Bits and Bytes of Computer Networking

    This is the second course of the popular Google certification and it is designed to teach you computer networking and communication protocols such as TCP IP and how the internet and protocols work like DNS.

    You will also learn about cloud computing and applications so you will get an understanding of some powerful tools that are used for networking troubleshooting and many more topics related to the network.

    Here is the link to join this course for FREE — The Bits and Bytes of Computer Networking

    2.3. Operating Systems and You: Becoming a Power User

    After learning the fundamentals of computer hardware and software as well as the networking you will deep dive into using the actual operating systems such as Linux and Windows.

    You will learn and understand how to navigate in their filesystem using the graphical interface as well as the command prompt and you will also learn how to manage user group permissions and more.

    Here is the link to join this course for FREE — Operating Systems and You: Becoming a Power User

    2.4. System Administration and IT Infrastructure Services

    This is the 4th course of this Google IT Professional certification and this course will introduce you to cloud computing and how to be a system administrator.

    You will learn the infrastructure of the cloud that is responsible for keeping the organization’s services such as Netflix and Dropbox live and running as well as backup data and recover your IT infrastructure and many more topics.

    Here is the link to join this course for FREE — System Administration and IT Infrastructure Services

    2.5. IT Security: Defense against the digital dark arts

    Does the title of this course ring any bell? Remember Harry Potter and Defence against the Dark Arts course which is taught by professional snap?

    Well, this is not exactly same as you will not going to learn Magic but this is equally important as you will learn to protect your system from Digital attacks.

    The previous course has covered how to use and maintain cloud computing but there is one crucial every system administrator should know which is how to secure your cloud.

    This course is all about being by understanding some security concepts such as encryption and then learn using tools to protect your data and authentication and more.

    Here is the link to join this awesome course — IT Security: Defense against the digital dark arts

    How Artificial Intelligence Can Help with IT Support?

    In the ever-evolving landscape of Information Technology, staying ahead of the curve is crucial for IT support professionals. The Google IT Support Professional Certification, available on Coursera, has adapted to meet the changing demands of the industry.

    As we look towards 2026, this certification has integrated cutting-edge AI applications, making it more relevant and valuable than ever.

    The 2026 version of Google’s IT Support Professional Certification has embraced the AI revolution, integrating powerful AI tools and techniques into its curriculum.

    This forward-thinking approach ensures that certified professionals are well-prepared to leverage AI in their day-to-day IT support roles.

    Let’s explore how this Google Certification on Coursera is equipping IT support professionals with the AI tools they need to excel in troubleshooting and customer care.

    However, if you are new to AI, I also suggest you go through AI For Everyone and the “Generative AI for Everyone” course to get an overview of what is AI and what is Gen AI to take better advantage of AI in your work.

    AI For Everyone

    AI For Everyone by DeepLearning on Coursera: Learn AI terminology, capabilities, and applications. Discover how to…

    coursera.pxf.io

    Generative AI for Everyone

    Learn generative AI with Andrew Ng in this DeepLearning.AI course on Coursera. Gain hands-on experience, understand…

    coursera.pxf.io

    3 AI-Driven Features on Google IT Support Certification

    So far we have seen the content and curriculum of this course now I Am going to share what has been added to this certification to make it more relevant in 2026.

    Yes, I am talking about AI.

    Here are the 3 key AI skills you will learn in this IT support certification along with traditional support concepts and skills.

    1. AI-Assisted Troubleshooting
    2. AI-Powered Customer Care in IT Support
    3. Predictive Maintenance and Issue Prevention

    Let’s delve deeper into these features:

    1. Using AI for Enhanced Troubleshooting

    One of the most exciting additions to the certification is the module on using Generative AI to streamline and improve the troubleshooting process.

    Benefits:

    • Faster Problem Identification: AI analyzes symptoms and system logs to quickly pinpoint issues.
    • Intelligent Solution Suggestions: AI provides ranked solutions based on problem analysis and historical data.
    • Continuous Learning: The AI system learns from each resolved issue, improving future troubleshooting accuracy.

    Practical Application:

    You learn to use AI tools that can:

    • Automate the initial diagnosis of common IT issues.
    • Provide step-by-step guidance for complex troubleshooting procedures.
    • Predict potential system failures before they occur, enabling proactive maintenance.

    2. AI-Powered Customer Care in IT Support

    The certification now includes training on leveraging AI to enhance customer care in IT support roles.

    Key Features:

    • Intelligent Chatbots: Learn to implement and manage AI-driven chatbots for first-line support.
    • Sentiment Analysis: Use AI to gauge customer satisfaction and tailor support accordingly.
    • Personalized Support Experiences: Leverage AI to provide customized solutions based on user history and preferences.

    Practical Application:

    The course teaches students to:

    • Implement AI-driven ticket routing systems for more efficient support allocation.
    • Use AI to generate personalized self-help resources for common issues.
    • Analyze support interactions to continuously improve service quality.

    3. Predictive Maintenance and Issue Prevention with AI

    A significant addition to the curriculum is the focus on using AI for predictive maintenance and proactive issue prevention.

    Key Areas:

    • System Health Monitoring: Learn to implement AI-driven monitoring tools that predict potential failures.
    • Automated Patch Management: Understand how AI can optimize the patch deployment process.
    • Resource Optimization: Use AI to predict and manage IT resource needs efficiently.

    Practical Application:

    Students gain hands-on experience in:

    • Setting up AI systems that monitor network traffic and system performance to predict issues.
    • Implementing AI-driven security measures that adapt to emerging threats.
    • Using AI to optimize IT infrastructure based on usage patterns and predicted demands.

    3. People’s Review

    A study performed by the biggest job marketplace indeed.com for 182 who have taken and completed this course says that 40% of people get a job after completing this certification and 93% recommend a friend or a family member take this course if they want to start a new career in this industry.

    This course contains many labs to train and test your skills and that makes the whole program worth spending time learning the IT industry through practical lessons especially if you are planning to have higher certifications such as CompTIA A+.

    Everything now is almost transforming to be digital like bringing artificial intelligence into organization services or using chatbots to answer people's questions so understanding how the IT field in the world works is a good choice and I recommend taking this course for a career in IT or for educational purposes.

    Here is the link to join this popular Professional Certificate — Google IT Support Professional Certificate

    Is Google IT Support Certification Worth It in 2026?

    If you ask me, Google IT support certification is definitely worth it for its extensive and carefully designed curriculum, certifications from Google and addition of new AI skills to succeed in 2026.

    It will not just teach you traditional support skills like computer hardware, the Internet, computer software, troubleshooting, and customer service but also networking, operating system, and infrastructure support and now teaches you how to use AI for better IT support.

    This course also covers a wide variety of IT security concepts, tools, and best practices which is very important in today’s world.

    It introduces threats and attacks and the many ways they can show up as well as encryption algorithms and how they’re used to safeguard data, along with the three As of information security: authentication, authorization, and accounting.

    All these make Google IT Support definitely a worthy certification for anyone who wants to launch their career in IT support or just wants to become a better Support person in IT roles.

    Here are a few more pros and cons of this certification which will help you make a decision:

    Pros:

    1. Future-Ready Skills: The AI components ensure that graduates are equipped with cutting-edge IT support skills.
    2. Practical Focus: The certification emphasizes hands-on experience with actual AI tools used in the industry.
    3. Google’s Credibility: The certification carries the weight of Google’s reputation in the tech industry.
    4. Comprehensive Curriculum: Covers both traditional IT support skills and advanced AI applications.
    5. Affordable and Accessible: Available on Coursera, making it accessible to a global audience at a reasonable cost.

    Cons:

    1. Rapid Tech Evolution: The fast-paced nature of AI means some tools might become outdated quickly.
    2. Learning Curve: Those new to AI concepts might find some modules challenging.
    3. Need for Continuous Learning: The field evolves rapidly, requiring ongoing education beyond the certification.

    And, now if you want to join this program:

    Here is the link to join this program — Google IT Support Professional Certification

    Is Google IT Support Professional Certificate Worth It

    Conclusion

    As we navigate the AI-driven landscape of IT support in 2026, Google’s IT Support Professional Certification stands out as an invaluable credential. Its integration of AI tools for troubleshooting, customer care, and predictive maintenance makes it highly relevant for today’s IT support professionals.

    The certification not only teaches the fundamentals of IT support but also equips professionals with practical AI skills that are immediately applicable in the field.

    For those excited about a career in IT support, this certification offers a perfect blend of traditional support knowledge and cutting-edge AI applications.

    Whether you’re an aspiring IT support specialist or a seasoned professional looking to stay relevant, this certification offers substantial value.

    It’s an investment in your future, preparing you to not just participate in the AI-driven IT support revolution but to lead it.

    Remember, in the fast-paced world of IT, staying ahead isn’t just an option — it’s a necessity.

    With Google’s IT Support Professional Certification, you’re not just keeping up; you’re positioning yourself at the forefront of the industry, ready to harness the power of AI to provide more efficient troubleshooting and superior customer care.

    By embracing AI through this certification, you’re not replacing the human touch in IT support — you’re enhancing it.

    You’ll be equipped to handle complex issues more efficiently, predict and prevent problems before they occur, and provide personalized support that meets the high expectations of users in 2026 and beyond.

    Other Coursera Resources you may like

    Thanks for reading this article. If you like this article, then please share it with your friends and colleagues. If you have any questions or feedback, then please drop a note.

    P. S. — If you are planning to join multiple Coursera courses or specializations, then consider taking a Coursera Plus subscription which provides you unlimited access to their most popular courses, specializations, professional certificates, and guided projects.

    It costs around $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.

    Coursera Plus | Unlimited Access to 7,000+ Online Courses

    Invest in your professional goals with Coursera Plus. Get Unlimited access to over 90% of courses, Projects…

    coursera.pxf.io

      By javin paul at May 13, 2026 0 comments
      Labels: Certification , course review , coursera , Google , IT support , Review
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