If you would like to launch a successful career as a computer programmer, then coding interviews are a necessary evil you’ll have to deal with.
If you’re comparing structured interview-prep platforms, our Coding Ninjas review covers one popular option in depth.
While some interviewees find the coding interview an inconvenience, it is a very useful tool for employers to establish the depth of their coding skills and efficiency.
So you’d better kick off your coding interview preparation by taking the best coding interview courses and tutorials online.
In addition to that, while preparing for a coding interview, most coders think it will only be about coding. Yes, there are tons of coding exercises, but principally your soft skills are also tested.
In this article, I have reviewed the best coding interview courses and tutorials to help you prepare for the technical interview by honing both your technical and soft skills.
You’ll find a tone of coding questions and answers, algorithms, and data structures problems for acing the technical interview. For a dedicated roundup, see the best data structures & algorithms courses.
Data structures and algorithms are the foundation of every coding interview. If you need to build up those skills, explore our best data structures courses.
Let’s get started.
1. Master the Coding Interview: Data Structures + Algorithms | Udemy
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Making an effort to improve your whiteboard coding skills will definitely help you nail the coding interviews that stand between you and a great job offer or a salary raise.
This ultimate coding interview bootcamp, is one of the best coding interview preparation courses online that will help you land jobs at some of the big tech companies like Google, Tesla, and Amazon.
So technically this coding interview course teaches you how to use the strategies, lessons, and exercises in this course, to land offers from all sorts of companies, by mastering algorithms, data structures and the notorious Big-O Notation.
Through this online training, you’ll be able to get on the same level as someone with a computer science degree by learning the fundamental building blocks of computer science, which will give you a big boost during interviews.
At the end you’ll also know what to do during interviews, after the interview, and how to handle offers.
2. Coding Interview Bootcamp Algorithms, Data Structures Course | Udemy
If you are preparing for a tech job interview that will involve some JavaScript coding challenges then you definitely want to kill it stone dead by mastering JavaScript data structures and algorithms.
Often that not, most interviews will ask you tricky questions that you can only answer if you had seen the problem before.
That makes this coding interview course on Udemy a great place to learn the most common coding interview questions that you’ll see in an interview, giving you the tools you need to ace your next whiteboard interview.
However, you are not only just going through dozens of questions to practice on, you’ll also understand the tricks behind solving each question, so you can perform in an actual interview.
By the end of this training you’ll have a thorough understanding of the most important data structures, sensible strategies for tackling systems design problems, and insider tips on correctly answering what interviewers are really looking for.
3. Grokking the Coding Interview Patterns | Educative
Most coding-interview prep fails the same way: you grind hundreds of individual problems and still freeze when the interviewer gives you one you have not seen. This course is built to fix exactly that, by teaching 28 recurring patterns — sliding window, two pointers, topological sort and the rest — so you recognise the shape of a problem instead of memorising its answer.
It is substantial: 1,125 lessons, with a mock interview attached to every pattern. Everything runs in the browser, so there is no local environment to configure and no video to scrub through — you read, then you write code against the problem in the same window.
Pick this one if you have a real interview coming and want the highest-leverage preparation per hour. It is the most complete option on this list.
4. Grokking Modern System Design Interview | Educative
Coding rounds are only half of a senior loop. The system design interview is where most mid-level candidates come unstuck, because it has no single correct answer and rewards structure over recall.
This course gives you that structure: 206 lessons, 8 mock interviews, and a named 45-minute answer framework (RESHADED) you can actually walk through under pressure. It builds up the distributed-systems components first — load balancing, sharding, caching, consistency trade-offs — then has you assemble them into full designs.
Take it alongside the patterns course above rather than instead of it. They cover the two different rounds you will actually sit.
5. 11 Essential Coding Interview Questions + Coding Exercises | Udemy
When it comes to improving your general coding skills, coding interviews are a great way to go because they enable you to learn some handy problem solving techniques, before the d day comes when you need them.
By taking this coding interview preparation course you’ll pick up a few problem solving techniques you’ll be able to use right away in your next coding interview.
The course instructor then carefully walks you through the 11 essential coding interview questions and their answers, the very questions that surface often in programming interviews.
And they basically have to do with the concepts behind the use of arrays, strings, two-dimensional arrays, linked lists and trees, etc.
In order to follow along well, though, you should have basic knowledge of two dimensional arrays, breadth first search, and linked lists and trees.
I’d recommend this course to an intermediate to advanced learner who is preparing for their software engineer programming interviews.
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if you need full bootcamp training (not just interview prep), see our best coding bootcamps guide.