Tuesday, May 19, 2026

I Tried 50+ System Design Interview Courses on Udemy: Here Are My BEST 5 for 2026

 Top 6 Udemy Courses to Learn High Level and Low Level System Design

Hello guys, if you are preparing for Software Engineer or Software Developer Job interview then you may know that how important is to prepare for System Design, especially if you want to get a developer job on top tier company like Amazon, Google, Meta, Apple and Netflix.

In the past, I have shared several resources for System design interview preparation like best System Design Interview Books, websites, and popular Software design questions for practice, and today, I am going to share best System Design courses from Udemy, one of my favorite place to learn anything related to tech.

Why Udemy? Well, my reason to choose Udemy was mainly for its affordable price. There is no other place where you can find 50+ hours of top quality courses for just $10.

Apart from price, choice is another reasons why I like to learn on Udemy. It’s the largest market place of online courses and you will have plenty of choices.

If you enroll in a course and don’t like the instructor or his way of explanation or content, you can ask for refund and choice another course.

This is the facility, which I have never found anywhere else, except subscription based sites like Educative , ByteByteGo, Design Guru, Exponent, Codemia.io, and Bugfree.ai.

That’s why I always go to Udemy to enroll into the System Design courses and today I am going to share few gems from my collection.

By the way, if you are in hurry then just go and join Mastering the System Design Interview by Frank Kane, a 5 hour course from an ex Amazon Hiring manager where he share proper process and insider tips to crack the System design interviews on FAANG or MAANG companies.



You can also get this course now for just $10 as Udemy is running their biggest sale. I already bought 50+ courses to learn in-demand skills this year. You can also join this course for a discount, you will thank me later.

6 Best High Level and Low Level System Design Courses You can Join on Udemy in 2026

Without any further ado, here is my favorite System design courses you can join on Udemy. These System design courses are created by System design expert and current and ex-FAANG employees who have served on both side of table.

I mean they have not only cleared the interviews as a candidate but also taken interviews as hiring manager.

There are plenty to learn form these experienced hands and these course provide that opportunity to you. If you are serious about your System design interview preparation then you will love these courses for sure.

1. Mastering the System Design Interview by Frank Kane

This was one of the first System design interview course I joined on Udemy. I have known Frank Kane from his previous courses on Big Data and Scala and was big fan of his teaching style and content.

So, when he release his System design course, I immediately joined the course and I must say I wasn’t disappointed.

The course not only cover key system design concepts like caching, scalability, sharding, security, and software architecture but also answer frequently asked System design questions like difference between Horizontal and Vertical Scaling, and API Gateway vs Load Balancers.

The course not only touch base upon Big Data, ACID properties, Data Structures and Algorithms but also share strategies to tackle pressure of System design interviews and how to answer system design questions.

For practice, you will also solve popular System Design problems like URL Shortening, and Web Crawlers and learn how to apply your knowledge on solving System design problem.

Talking about social proof, more than 62,373 students have already joined this course and it has on average 4.6 rating from close to 8800 raters which is amazing.

Frank has done amazing job with this course. I highly recommend this course to anyone who is preparing for System Design interview in 2026.

Here is the link to join this course Mastering the System Design Interview by Frank Kane



2. Rocking System Design by Rajdeep Saha

If you need an alternative of Frank’s course then you can checkout this Rocking System Design course by Rajdeep Saha. This one was my first course of Rajdeep and I didn’t know him before. Rajdeep is a AWS solution architect and that shows in his course.

In this course, you will not only learn how to answer System design questions on interview but also learn about Cloud Computing, particularly AWS and how to design applications for Cloud.

This 9-hour online course covers AWS implementation of the design using Kubernetes, Lambda, API Gateway, EC2, ALB, NLB etc, and also touch base upon core system design concepts like scaling, sharding, hashing, microservices, load balancers, security, well architected framework, and more

The course is also full of quizzes and exercises. You can test your knowledge with up-to-date system design quizzes. Talking about social proof, more than 13,381 engineers have already joined this course and on average it has 4.5 rating which is quite amazing.

Here is the link to join this course — Rocking System Design by Rajdeep Saha



By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

3. System Design Interview Guide for Software Architecture by CodeKarle

This is another Udemy course on System Design interview which is created by an ex FAANG engineer, Sandeep Kaul. Sandeep is an Experienced Tech Lead/Architect with a huge breadth and depth of knowledge based on his experience on a wide variety of technologies that he has worked on in his career, and that shows in this course.

In this System Design Interview Guide you will not only learn the strategy to crack your next High Level System Design Interview but also learn about Distributed Systems, Microservices Architecture, Databases, Software Architecture, Analytics, and Design Patterns, which will also be used in your day-to-day task and help become a better engineer.

You will also find solutions to the most common Interview Questions at FAANGs like how to design WhatsApp, how to design Uber, How to design Amazon, How to design Twitter, YouTube, AirBnb and many other real apps.

The course also comes with a lot of quizzes and coding problems which you can use to further solidify your knowledge .

In short, one of the best course on high level system design. I absolutely loved it. Sandeep covers each topic in sufficient detail and his deep understanding of various technical aspects shines throughout the course.

I highly recommend it to anyone interested in taking their system design skills to the next level.

Here is the link to join this course — System Design Interview Guide for Software Architecture by CodeKarle



4. Pragmatic System Design by Alexey Soshin

This 5-hour long System design interview course on Udemy is created by Alexy Soshin, a Senior Solutions Architect at Amazon Web Services. Alexy is a well known expert in System design and also author of “Kotlin Design Patterns and Best Practices” book.

He has also one of the coauthor of “97 Things Every Java Programmer Should Know” book, one of my favorite Java book of recent time. Where you will find 97 essays from different expert on key technical topics.

In this System design course on Udemy, you will learn not only learn how ow to solve most popular FANG interview questions but also

  • important scalability concepts
  • Common communication protocols
  • Caching and Redis
  • Concurrency
  • Database design and PostgreSQL
  • Sharding strategies, and much more.

Talking about social proof, more than 26,522 software engineers have already joined this course and on average it has 4.3 rating out of 5 which is great.

Here is the link to join this course Pragmatic System Design by Alexey Soshin



5. The “BigTech” System Design Interview Bootcamp

If you are looking for a bootcamp style course to prepare for System design interview in 2026 then you will love this course. It provides complete guide to nail your next System Design Interview with Hands-On, Project-Based learning with discord community!

Created by Fabien HinsenKamp, an SSE @ Amazon, this course provides Hands-on experience with component-level system design and real-world application through 10 mock interview challenges.

The course also provides a prefect introduction to System Design, what I loved about this course was not just the technical information taught, but also the tips provided on how to crack the technical interview.

Since Fabien is already working in Microsoft and have gone through the same path and crack the code, his tips are battle hardened and quite valuable.

Fabian ia also very responsive and available on Udemy and Discord for Questions and Queries. And he does not spoon-feed the answers, but ignites that curiosity to learn more about the topics you find interesting, which a sign of a great teacher.

If you want to crack your next System Design interview and just starting then you can join this course. More than 22,292 students have already joined this course.

Here is the link to join this course — The “BigTech” System Design Interview Bootcamp



6. Low Level System Design [An interview perspective]

While most of the course in this list covers high level system design I thought to include one course from Low Level system design to balance things out and also because Low Level System design is also important for crack tech interviews.

Created by Abhishek Ghosh, this course will teach you how to begin coding by keeping extensibility in mind. You will learn how to weed out unnecessary information from the problem definition, identify traction, and create a class diagram with it

You will also learn about how to write test cases for the problem as and when required and gain necessary exposure and modifications to the API for code sustainability

The course also teach you how to use encapsulation when required and generate desired accessors and mutators. Most importantly you will learn how to complete code during interview time and ain insight into fallback plans in emergency cases, which always happens.

Talking about social proof, more than 4,810 students have already joined this course and it has on average 4.5 rating which is quite nice for a low level system design course. If you want to master Low Level System design, I highly recommend this course.

Here is the link to join this course — Low Level System Design [An interview perspective]



That’s all about the best online courses you can join to prepare for System Design interviews on Udemy. System Design is very vast topic that’s why you need a couple of courses to really cover them.

I have learned better when I learn from two different instructors and that’s why I have shared System Design courses from different instructor in this list.

Also, all these courses are very affordable and you can get it for just $10 now on Udemy Sale. Even if you don’t have time to watch the course now, you can enroll at them now at a lower price to save money and complete it later when you have time.

I have already bought 50+ courses on recent Udemy sale on System Design, Programming and other technical topics.

And, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

Other Programming Articles and Tutorials you may like

Thanks for reading this article so far. If you like these System design interview courses form Udemy then please share with your friends If you got any other System design course which should be in this list, let me know in comments. Everybody loves great resources and happy learning System design.

P. S. — If you want to do just one thing to learn System Design in depth then I also suggest you to checkout Frank Kane’s Mastering the System Design Interview course on Udemy. Frank is an ex-hiring manager and know what it takes to crack System design interview of those big FAANG companies .

Monday, May 18, 2026

I Took 20+ Programming Interview Courses on Udemy: Here Are My BEST 5 Recommendations for 2026

 Top 5 Coding Interview Preparation Courses for Beginners and Experienced Developers

Hello guys, bonus season is done and dusted for almost all the companies and we are now in second half of the year, the best time to look for jobs as if you join this time, you will not miss bonuses on your new companies.

If you are also looking for new jobs and preparing for coding interviews and need resources to sharpen your coding, data structure and algorithms, and System design skills then you have come to the right place

In the past, I have shared best DSA books and Courses, best System Design books and courses, and in this article, I am going to share best coding interview prep courses for Software engineers, Java developers and other IT professionals.

Unlike normal data structure and algorithms courses, these courses are especially designed you to prepare for coding interviews.

Which means you will not just learn about data structures and algorithms but also about coding patterns and techniques to solve coding problems in a limited time during live interviews.

They are good resource not just for beginners and freshers software engineers who doesn’t know much about what can be asked on Coding interview but also for experienced developer who have lost touch of DSA basics, System design basics and haven’t practice on Leetcode or solving coding problems lately.

You can join these courses to sharpen your skills and revise key computer science, coding, DSA, and System design concepts before interviews.

They are also created by experts like Andrew Negaoie, Colt Steele, Scoot Barett, Stephen Grider, and quite affordable, you can buy all of these courses on just $50 on Udemy sale which is happening now, which is like a steal.

While I prefer to prepare from multiple courses because learning form different instructor works for but if you just want to join one course, I would recommend you to join the Master the Coding Interview: Data Structures + Algorithms by Andrei Negaoie and ZTM academy.

best coding interview course on Udemy
best coding interview course on Udemy

This is one of the comprehensive, well designed and updated course for coding interview preparation and works for both FAANG, Investment banks and other service and product based companies.

6 Best Programming Interview Courses on Udemy in 2026

Without any further ado, here is my list of curated courses for coding interview preparation. All of these courses are curated from Udemy because I found Udemy as the most affordable place to learn anything.

I have only selected the course where I can connect with the instructor and find his teaching style good enough.

Since I am an experienced Java developer, few courses are may be bit advance for beginners but if you stick around, you will learn a lot and improve your DSA skills significantly.

So, let’s start with the first course for your next coding interview preparation in 2026

1. Master the Coding Interview: Data Structures + Algorithms

This is 19.5 hour long, bootcamp style course is one of the best course to start preparing for your next coding interview. The course is designed to cover all essential data structures and algorithms for coding interviews.

You will not only learn about arrays, linked list, binary tree, graphs, stack, queue, and hash table, but also about various searching and sorting algorithms and BigO notation, which is key to calculate the performance for a given solution or algorithms.

The course not just covers about DSA part but also share common questions asked on Google, Microsoft, Amazon and Meta to give you idea about what you can expect on FAANG interviews.

By the way, if you are preparing for FAANG interviews, you can also check his Master the Coding Interview: Big Tech (FAANG) Interviews course where he talk more about how to crack interviews on FAANG or MAANG companies.

By the way, the course doesn’t end here but also give you tips on how to negotiate your offer because that’s most important step, you can easily get 20 to 30% hike right there if you negotiate well, which could take years otherwise, and I am not saying from the course perspective but form my own experience.

Overall one of the best coding interview prep course you can join online for an affordable price. Talking about social proof, more than 221,098 people have already joined this course and it has on average 4.7 rating which is amazing.

Here is the link to join this course— Master the Coding Interview: Data Structures + Algorithms

Master the Coding Interview: Data Structures + Algorithms review
Master the Coding Interview: Data Structures + Algorithms review

The course also make great use of new feature on Udemy like coding exercises which allows you to practice solving coding interview problems right on your browser, this makes practice really easy as it take away all the friction related to downloading Software and setting up your IDE for practice.

2. Java Data Structures & Algorithms + LEETCODE Exercises

If you are an experienced Java developer looking for a job change but worrying about how to crack the coding interview round, particularly the live coding interview then this course is for you.

In this course, you will prepare for coding interview by not just learning and revising your data structure skills but also by solving LeetCode problems in Java.

Created by Scoot Barett, the course come with 100+ Coding Exercises with Detailed Explanations, this will help you to learn data structure and algorithms faster You will also learn how to use Big O notation to calculate time and space complexity of your solution.

Scott also make good use of animation to explain the complex data structure and algorithms concept, which really work well for beginners and fresh graduates coming out from colleges.

Talking about social proof, more than 44,759 students have already joined this course and it still have 4.7 rating which is phenomenal. If you are a Java developer who want to crack your next coding interview, you should check out this course.

Here is the link to join this course— Java Data Structures & Algorithms + LEETCODE Exercises


Java Data Structures & Algorithms + LEETCODE Exercises course review on UDemy


Java Data Structures & Algorithms + LEETCODE Exercises course review on UDemy

By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

3. The Coding Interview Bootcamp: Algorithms + Data Structures

If you are looking for a coding interview prep course for experienced web developer then this course is for your. Created by one of my favorite Udemy instructor and web developer, Stephen Grider, this 13 hour course is a great resource for web developers.

This is like a crash course on coding interview, where the focus is on solving coding problem, which makes it an ideal course for experienced developers.

In this course, you will master commonly asked interview questions and tackle common data structures used in web development. You will also practice dozens of different challenges on 30+ coding exercises.

Most importantly, you will use Javascript to solve challenging algorithms and coding problems and that’s why I recommend this course to web developers who already knows JavaScript well.

Talking about social proof, more than 102,191 students have already joined this course and it still have 4.7 rating out of 5, which is seriously amazing.

Not many courses can sustain that high level of rating for so many students unless they have real high quality content which this course has.

Here is the link to join this course— The Coding Interview Bootcamp: Algorithms + Data Structures



The Coding Interview Bootcamp: Algorithms + Data Structures udemy course review


The Coding Interview Bootcamp: Algorithms + Data Structures udemy course review

4. LEETCODE In Python: Algorithms Coding Interview Questions

So far, I have shared coding interview prep courses for both Java and JavaScript developers but what about Python programmers? Python is one of the the top three programming language and also a good choice for solving coding problem on interviews.

Created by an ex Google engineer, Bit Punch, this course will give you ample opportunity to practice data structure and algorithms questions for interviews at FAANG companies like Google, Facebook, Apple & Amazon.

In this 29 hour long coding interview course for python developers you will solve easy to hard Difficulty problems using different data structures and algorithms. It also covers the most popular interview questions asked by major tech companies

Along the way, you will also learn essential coding interview pattern like two pointers, sliding window and merge interval which can be used to solved 100s of Leetcode problems.

Talking about social proof, more than 18,436 student have already joined this course and it has on average 4.6 rating which is great.

You will greatly improve your problem solving skills by going through this course and that’s why I highly recommend this course to python developers preparing for coding interviews in 2026.

Here is the link to join this course — LEETCODE In Python: Algorithms Coding Interview Questions



LEETCODE In Python: Algorithms Coding Interview Questions udemy course review


LEETCODE In Python: Algorithms Coding Interview Questions udemy course review

5. Data Structures Algorithm DSA | Python + JavaScript LEETCODE

While I have already mentioned one Python and one JavaScript course which also deals with Leetcode problems, if you need and alternative, you can take a look at this course.

Created by Jackson Kalith, this is one of the most comprehensive coding interview prep course with 39 hour of content In this course you will not only learn common Data Structures such as Arrays, Hash Table, Linked List, Binary trees, Graphs but also solve real Coding Interview Questions from Google, Meta, Amazon, Netflix , and Microsoft etc.

The course is divided into a structure to prepare you for coding interviews in 25 days. It’s like a 25 days coding interview bootcamp to master DSA, BigO, Coding Interview Patterns Python JavaScript and get the job you want!

More than 58,484 students have joined already and on average it has got 4.5 rating which is quite nice. If you need more detailed preparation and want to solve problems, particularly real coding problems from Google and Amazon then you can join this course.

Here is the link to join this course— Data Structures Algorithm DSA | Python + JavaScript LEETCODE



Data Structures Algorithm DSA | Python + JavaScript LEETCODE udemy course review


Data Structures Algorithm DSA | Python + JavaScript LEETCODE udemy course review

6. JavaScript Algorithms and Data Structures Masterclass

This is another DSA and coding interview course for JavaScript and web developers. Created by legendary instructor Colt Steele, this course should be the very first course beginners should join to learn about common data structures like array, linked list, binary tree, stack and queue.

This 21.5 hours aim to fell the gaps of what you learn in colleges and what is expected on real technical job.

By teaching you common data structures and algorithms and solving coding problem the course aims to improve your problem solving skills.

In this course, you will also learn everything you need to ace difficult coding interviews, including 6 sorting algorithms and learn to implement 10+ data structures from scratch.

While this is a beginner level course, 2 to 3 years experienced web developer can also join this course to improve their problem solving skills and become a stronger developer.

Here is the link to join this course— JavaScript Algorithms and Data Structures Masterclass


JavaScript Algorithms and Data Structures Masterclass udemy course review


JavaScript Algorithms and Data Structures Masterclass udemy course review

That’s all about the best Coding interview courses on Udemy in 2026. Coding interview is very vast topic and that’s why one course is not enough. I normally join multiple courses from different instructor to understand the topic better.

You can also join a couple of courses from this list to learn about data structures, algorithms, and everything else you will need to crack the Coding interviews in 2026.

All these courses are also very affordable and you can enroll them now for just $10 on Udemy sale. Even if you are busy and don’t have enough time to watch these courses, you can join them now for a lower price and watch them later when you have time.

I do the same and I have already bought 50+ courses on this sale as of now as these sales are now happening less frequently and far between.

By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month. If you got a lot of time and want to save money, Udemy Personal Plan will be perfect for you.

Other DSA and Coding interview resources you may like

Thanks for reading this article so far. If you like these best Udemy courses for coding interviews, then please share them with your friends and colleagues. If you have any questions or feedback, then please drop a note.

P. S. — If you need an alternative to Udemy coding interview courses then you can also join ByteByteGo and start learning System Design and Coding Interview concepts, you will thank me later. Make it a goal for the new year and you will surely be a better Software Engineer.