The most important reason for failing those coding job inte

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Most of the computer science graduates dream of working for Google, Facebook, Amazon, Microsoft, and Apple but only a few programmers clear their difficult coding interviews.

Many junior developers dream of making it at one of the larger tech companies, but, to be honest with you, getting your first job is never easy. It is, in fact, one of the hardest things in your life and you need to put your best effort to find a job in your dream company.




The single most important reason for failing those coding job interviews is the lack of knowledge and practice. It pretty obvious that if you don’t know what to learn then you are bound to fail, hence it becomes increasingly important that you prepare hard in advance.

Unfortunately, I learned this a little too late, after spoiling my chances at Microsoft and Amazon, but you don’t need to. You can learn from my experience and prepare better for your programming job interviews.

So, the big question is, how do you prepare for coding/programming job interviews? Which subjects should you read up on? Which questions will you need to solve? How do you deal with coding and other technology related questions?

When I was hunting for my first job there wasn’t much help available; we were totally reliant on our textbooks of programming languages and data structure to prepare for interviews, but things have changed in the last 10 years.

Nowadays, you not only have dedicated books to prepare for the coding interview, like Crack the Coding Interview Questions, but you have online courses and Coding Bootcamps to practice for coding interviews.

I really like the boot camps because of their methodology, focus, and rigorous practice but they are a bit expensive and not every computer science graduate who is looking for a job can afford that.
Another option is online courses like Software Engineer Interview Unleashed, which are both cheap and provide you similar kind of interactive guidance you get in coding boot camps.
There are a lot of coding interview courses available on popular course sites like Udemy and PluralSight but you need to choose the right course which can help you to achieve your goal.
15+ Data Structure and Algorithm Courses for Programming Interviews
In this article, I am going to share some of the best online courses to prepare for coding/programming job interviews, and based upon your experience and skill set, you can choose one or two courses from this list to prepare for your next job interview.
Most of these courses are focused on data structure and algorithms, which are the most important topics for any coding interview but they also teach you problem-solving and other aspects of Job interview e.g. questions from a programming language like Java and C++, Database, and SQL concepts, Linux commands, etc.
Once you have gone through one of these online training courses, you would have enough knowledge to take on your job interview as well as know where to go for further improvement.
1. Data Structure and Algorithms Analysis — Job Interview
This is probably the best coding interview course for Java programmers. Though no programming language is required, if you don’t know Java, the author will teach you.
In this course, you will learn how to analyze algorithms like searching, sorting, and other algorithms.
You will also learn how to reduce the code complexity from one Big-O level to another level, an important skill to impress the interviewer.
Furthermore, you will learn different types of data structures and how to choose the right data structure to solve a problem.
Remember, choosing the right data structure can drastically improve the CPU and memory profile of an application.
For example, using a set to solve duplicate elements problem make it a lot easier. You will also learn how to find Big-O for every data structure.
By the end, you will be able to write code that runs faster and uses low memory. You also will learn how to analyze problems using one technique many programmers forgot to prepare.
Here is the link to join this course —Data Structure and Algorithms Analysis — Job Interview

This is an ideal course for all levels of programmers, particularly Java programmers. If you are looking for a good programming/coding interview course in Java, this is the one. You can use it to start from scratch or just refresh your knowledge before going to an interview.
Data Structure and Algorithms Analysis – Job Interview
Write code that run faster, use less memory and prepare for Software Engineer Job Interview

2. Grokking the System Design Interview
If you have attended coding interviews then you may know that dealing with System design questions is not easy, especially if you don’t have much experience in real-world software development.

Things like caching, scalability, fault-tolerance, Microservices, database design are important to design software but not easy to master. This course provides a good introduction to all the things you can keep in mind while designing a new system like a website, an application, or just an app.

This course is a must if you want to crack the coding interview but even if you are not preparing for an interview, you will learn a lot about software architect and design by going through this course which will eventually make you a better programmer.
Here is the link to join this course — Grokking the System Design Interview

3. Software Engineer Interview Unleashed
This is one of the great courses for coding interviews, created by a former Google Interviewer. If you are a software engineer and you are looking for a job on big tech giants like Google, Facebook, SnapChat, or Airbnb, then this is the right course for you.
It is specially designed for college graduates and junior developers who are looking for a job in big technology companies and startups.
You will not only learn data structure and algorithms and other technical information required for an interview but also you will get a chance to see actual examples of phone and onsite interviews and see how they are evaluated.
Here is the link to join this course — Software Engineer Interview Unleashed

4. Grokking the Coding Interview: Patterns for Coding Questions
This one is another fantastic course from the
platform for preparing for coding interviews. Unlike other online courses where you prepare for coding interviews by solving problems, this course will teach you how to find underlying coding patterns so that you can solve similar problems on coding interviews.

This technique of finding patterns and developing coding sense is a must if you want to crack a coding interview on companies like Google, Microsoft, Amazon, Apple, Facebook, NetFlix, or any FAANG companies. Why? because they often give you a coding problem that you have never seen before. If you know how to break the problem into recognized patterns you can solve them.

I highly recommend this course to anyone who is preparing for coding interviews but just like the previous course, even if you are not preparing for an interview, you can join this course to improving your coding skill and become a better developer.
Here is the link to join this course —Grokking the Coding Interview: Patterns for Coding Questions

And, If you find Educative platforms useful then you can also consider getting an Educative Subscription which gives you access to their 100+ courses for just $14.9 per month.
Introducing: Educative Subscriptions. Get unlimited access!
Upskilling doesn’t have to be a struggle. Get full access to all + courses with Educative Unlimited, and gain the tools…

Sometimes you need this flexibility of joining a course you want instead of purchasing it. It’s also a better deal if you are going to attend more than a couple of courses on Educative in a year.
5. Master the Coding Interview: Data Structures + Algorithms
In this course, you will not only learn how to solve a coding challenge on the spot but also learn how to tackle tricky questions from the interviewer with respect to complexity and improvement.
The course also includes a blazing fast boot camp for computer science questions about data structures, algorithms, bit manipulation, and concurrency. Overall, a complete package for preparing software job interviews.
This is your ultimate coding interview bootcamp. Get more job offers, negotiate a raise: Everything you need to get the job you want you will learn in this course. Not just the tech and coding skills but also the negotiation which can easily make 10K to 30K in your final offer.
Here is the link to join this course — Master the Coding Interview: Data Structures + Algorithms

You can join this course on either Udemy or Zero To Mastery,
Andrei Neagoie
’s own coding school where all of his courses (Python, JavaScript, Algorithms, Deno) are available under one subscription.
If you like Andrei’s teaching style and quality, of course, I highly recommend getting this subscription it not just cost-effective with $264 annual cost but also gives free access to all future courses they add to the platform. Use my code FRIENDS10 to get a 10% discount
Here is the link to join this course on Zero to Mastery Academy — Master the coding Interview
Master the Coding Interview: Data Structures + Algorithms
✓ Ace coding interviews given by some of the top tech companies ✓ Learn, implement, and use different Data Structures ✓…

6. The Coding Interview Bootcamp: Algorithms + Data Structures
This is a coding interview guide written in JavaScript. The author himself has spent many hours going through interview questions asked at Google, Facebook, and Amazon and shared his experience in answering the question in the right way.
In this course, you will find a huge collection of common algorithm questions, including everything from “reversing a string” to “finding leaf nodes of the binary tree.”
The course also provides an overview of most important data structures for interviews e.g. list, set, map, stack, queue, tree, etc.
It also provides practical tips on dealing with system design interviews, which is sometimes hard for beginners given their lack of experience in designing a real-world system.
Here is the link to join this course — The Coding Interview Bootcamp: Algorithms + Data Structures

7. Break Away: Programming And Coding Interviews
This is another good interview refresher kind of course for Java and C programmers. Similar to the previous course it also covers essential concepts like pointers, string, linked list, sorting, bit manipulation, data structure, and system design.
Most of the solutions are given in the C programming language and some are given in Java.
This is a good course for fresh engineer graduates and experienced programmers who want to brush up on their data structure and algorithm concepts before going for interviews.
Here is the link to join this course — Break Away: Programming And Coding Interviews

8. Intro To Dynamic Programming — Coding Interview Preparation
Many coding problems can be easily solved if you know dynamic programming but I have found many developers don’t even know about it, including some experienced ones.
This course will teach you dynamic programming to improve your algorithms knowledge and prepare for the software engineering coding interview.
You will also learn several 1-dimensional and 2-dimensional dynamic programming problems and how to derive the recurrence relation and write a recursive solution to it, then write a to the problem and code it up in a few minutes.
Here is the link to join this course — Intro To Dynamic Programming — Coding Interview Preparation

Some of the dynamic programming problems covered in this course are:
Climbing stairs
Buying and Selling Stock
0/1 Knapsack
Longest Common Substring
Longest Common Subsequence
Overall a good course to learn Dynamic programming. You can take this course even if you are not preparing for a coding job interview, just to improve your knowledge of dynamic programming and algorithms. The course uses both Java and Python, so it’s useful for both Java and Python developers.
9. Python for Data Structures, Algorithms, and Interviews!
This is a data structure, algorithm, and coding interview course specially designed for Python developers. It’s one of the modern course and focuses on things like Github and LinkedIn profile to impress recruits.
It also helps you to create a great resume, which much programmers neglect. Remember, it’s your resume that gives you a chance for an interview, if it’s not good, you won’t even get an interview call.
In this course, you will not only learn all major data structures and algorithms but also ace coding interviews after preparing for the course’s mock interviews. Overall, one of the best coding interview courses for Python programmers.
Here is the link to join this course — Python for Data Structures, Algorithms, and Interviews!

10. 11 Essential Coding Interview Questions + Coding Exercises!
No interview preparation is done until you solve some of the most common questions asked in job interviews. This course provides how to solve 11 such questions in a step-by-step manner.
It’s a short course and I recommend you to take only with other course but it’s good for learning how to approach a completely unknown problem based on your existing knowledge of data structure and algorithms.
Here is the link to join this course — 11 Essential Coding Interview Questions + Coding Exercises!

11. 200+ SQL Interview Questions
SQL queries and database-related questions are very common in programming job interviews, hence it’s important for computer science graduates or programmers prepare SQL questions in advance.
This course provides 200+ SQL queries and questions for programming job interviews.

I have also discussed some of the questions like finding second-highest salary and Nth-highest salary on my earlier posts, you may want to check those.
12. Algorithms and Data Structures — Part 1
This is one of the best Pluralsight courses to learn Data Structure and Algorithm which is the most important topic for any coding interview.
In this course, you will look at the core data structures and algorithms that are the building blocks of applications everywhere. You will learn how they work and see real-world examples that you can apply to your next project.
Btw, you would need a Pluralsight membership to get access to this course, which costs around $29 per month or $299 annually (14% discount).
If you don’t have Pluralsight membership, I encourage you to get one because it allows you to access their 7000+ online courses on all the latest topics like front-end and back-end development, machine learning, etc. It also includes interactive quizzes, exercises, and the latest certification material.
Alternatively, you can also use their 10-day-Free-Trial to watch this course for FREE.

13. 200+ Java Interview Questions for Beginners
This course is particularly for Java programmers or developers who are applying for Java developer jobs.
Since Java is vast it’s not possible to prepare everything, especially in a short duration of time and that’s where this course rocks.
It provides a good sample of 200+ Java interview questions from different areas of Java. Along with this, you can also see my list of 140+ Java Questions from the last 5 years, which I have collected myself and with friends and colleagues.
This set is a good representation of what kind of Java questions you can expect in real interviews.
Here is the link to join this course — 200+ Java Interview Questions for Beginners

14. Grokking Dynamic Programming Patterns for Coding Interviews
This is the third course I have chosen from Educative for programmers preparing for coding interview and that’s becuase Educative really have the best collection of coding interview courses. This course tackles another difficult topic of Dynamic Programming from coding interviews.

If you don’t know Dynamic Programming is a technique to solve complex problems by breaking them down into smaller similar problems. It uses Recursion and Memoization to solve individual parts to eventually solve the bigger problem, but it’s not easy to master.

This course will give you all the knowledge you need to master Dynamic Programming and you will learn by solving the most popular dynamic programming problem from interviews so that you are ready to solve them when you really need them.
Here is the link to join this course — Grokking Dynamic Programming Patterns for Coding Interviews

That’s all about some of the best courses to prepare for coding or programming job interviews. As I said, the key to success in the coding interview is the ability to think through the problem and code in real-time.
You need a lot of practice to get that. Thankfully, there are a lot of websites where you can practice coding questions. Once you have gone through one of these courses, you can try solving my list of 50 coding problems.
50+ Data Structure and Algorithms Interview Questions for Programmers
There are a lot of computer science graduates and programmers applying for programming, coding, and software…


Now You’re Ready for the Coding Interview
These are some of the best courses to prepare for programming interviews. They will teach you data structure and algorithms that help you to do really well in your interview.
I have also shared a lot of programming interview questions on my blog, so if you are really interested, you can always go there and search for them.
These common coding, data structure, and algorithm questions are the ones you need to know to successfully interview any company, big or small, for any level of programming job.
If you are looking for a programming or software development job in 2018, you can start your preparation with this list of algorithms and job interview courses.
Good knowledge of data structure and algorithms is important for success in coding interviews and that’s where you should focus most of your attention.
Other Programming Interview Resources you may like:
50+ Data Structure and Algorithms Questions
30+ Linked List Problems from Programming Interviews
30+ Array-based Problems from Coding Interviews
10 SQL Queries from Programming Interviews
50+ Phone Interview Questions for Programmers
Data Structures and Algorithms: Deep Dive Using Java
10 Algorithm Books Every Programmer Should Read
Top 5 Data Structure and Algorithm Books for Java Developers
From 0 to 1: Data Structures & Algorithms in Java
7 Best Courses to learn Data Structure and Algorithms
20+ Binary Tree Based Coding Problems for Interviews
Top 25 System Design Problems for Coding Interviews
Closing Notes
Thanks, You made it to the end of the article … Good luck with your programming interview! It’s certainly not going to be easy, but by following these courses, you are one step ahead of other candidates.
If you like this article, then please share it with your friends and colleagues, and don’t forget to follow javinpaul on Twitter!
And, if you want to translate, or republish this article on your blog, website, or publication, please drop me a note on my email, I usually say yes.
P.S. If you like books then you can also check out my list of top 10 books to prepare for coding interviews.
P. P. S. — If you need some FREE resources, you can check out this list of free data structure and algorithm courses to start your preparation.
Other articles on Medium you may like:

I have 15 Year experience in website development, blogging, Seo, Content writing, and Link building.

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