5 Best + Free Data Science Interview Preparation Courses & Classes [2021 OCTOBER]

Best Data Science Interview Preparation course tutorial class certification training online

Data science is one of the most developing fields in the IT industry. It is giving many opportunities for individuals to build a successful career. From data analyst to data engineer to data scientist, you can choose any field that fits your interests. But, it’s not that simple to get into data science, even if you have a certification from a recognized institution. You’ll have to prepare yourself for the interview process so that you can pass it confidently. After thorough research, our team of 30+ experts has compiled this comprehensive list of some of the best data science interview preparation Courses, Tutorials, Classes, Training, and Certification programs available online for 2021. We have tried our best to include both the free and paid courses on the list. You may want to take a look at our coding interview preparation compilation as well.


5 Best + Free Data Science Interview Preparation Courses & Classes [2021 OCTOBER]

1. Data Science Interview Prep (Udacity)

Udacity is a professional e-learning platform that offers a specialized and free Data Science Interview Prep course to individuals who are well-versed with technical skills like Python, SQL, Algorithms, and Machine Learning. This is an intermediate data science preparation course that will help you learn about the process and approach to performing well in an interview. This platform offers instructor videos and computer-based training exercises taught by industry professionals to help you gain a solid understanding of Data Science interviews. During the sessions, you will also learn about the interview roles and how you can pass them.


Key USPs –

– Know the steps that you need to answer trick questions, as well as learn tips that’ll help to respond when you are unsure of the answers.

– Learn to approach an interview, not as a test but as an interactive that’ll showcase your skills & knowledge.

– Get prepared and not memorize the answers with the procedure along with the tip to remain calm, so you answer confidently, displaying your skills.

– Prepare and practice for the interview from professionals and get advice on how to respond even in nervousness.

– Learn to master behavioral interview questions with video tutorials, practice mock tests, and other study material.


Duration: 1 Week

Rating: 4.4 out of 5

You can Sign up Here


2. Data Science Position Interview (The Data Science Interview)

Individuals who want success in analytics and learn the tricks to ace the data science interviews can benefit from this course. Joining this course will train you for interviews in organizations from start-ups to top MNC’s globally. The course focuses on providing interactive training based on real interview questions sourced from top companies who hire Data Scientists. The course is developed to help individuals learn how to overcome challenges taken from the real-life scenarios of the Data Scientists working at a big organization. It offers valuable information, resources, high-quality questions, and much more to improve your skills.


Key USPs –

– All the study material is available free to give you a chance to face some tough, challenging questions and train you for organizations or different industries.

– Learn about the type of inquiries you’ll face in real conditions and test your knowledge by answering 1000+ actual interview questions specifically picked for you.

– Get access to data science resources from foremost blogs to the industry-recognized newsletters for further practice.

– You can even apply to data science jobs with our job board that aggregates from some of the best organizations around the course.


Duration: Self-paced

Rating: 4.4 out of 5

You can Sign up Here


3. Ace Data Science Interviews (Analytics Vidhya)

This comprehensive course covers different types of interviews in the Data Science industry and techniques that focus on acing the interview. You’ll get a hold on technical interviews on data science, machine learning, case study interviews, guess based interviews, and resources for practice. The course is created on the verge of interviews taken by the candidates and companies they have helped in the industry. If you belong to the field and aim to ace the interview in a good organization, this course is for you. Besides, you will also learn from various resources available in the form of infographics, e-book, and interview questions for practices that will make your way to ace the interview.


Key USPs –

– Learn different roles that exist in the data science ecosystem and what skill set is essential for these roles.

– Learn the tips & tricks to ace your data science interview along with building your digital presence that comprises of GitHub and LinkedIn profile.

– Know the process of how a professional interview will take place for the roles you’ll be applying to and practice to make it a success.

– Get your hands on the framework that’ll solve case studies and guesstimates useful in data science interviews.


Duration: Self-paced

Rating: 4.4 out of 5

You can Sign up Here


Review: Two years back, I changed my career from Sales to Business Analyst, everything learned in college, I thought I was confident in answering interview questions, but when I went through this course, I realized the difference between college teaching and how to bring that learning on to the table in front of an interviewer. Just brilliant. The course tells you what a Business analyst should focus on, in short, it portraits the technical roles differently with the level of experiences. A must attend! – Ritesh Tripathi.


4. Data Science Career Guide – Interview Preparation (Udemy)

It is one of the bestseller courses on Udemy designed to help you prepare for a Data Science Interview. It is specially prepared for individuals who want a career in Data Science to help them learn topics comprising questions on probability, statistics, machine learning, product metrics, example data sets, A/B testing, market analysis, and much more. The course instructor, Jose Portilla, is a professional trainer for Data Science & Programming, who loves to teach the power of programming to analyze data. He will assist you directly throughout the classes to uncover some of the techniques to ace the Data Science Interview.


Key USPs –

– Create a data science resume which is exceptional by taking a course that will enhance your skill.

– Get your hands on the practice questions with statistics & probability interview questions along with SQL interview questions.

– Learn various positions and titles available in the data science ecosystem and build an understanding of good experiment design.

– The course includes real questions with detailed explanations & solutions, so the candidates achieve a full understanding giving recruiters to learn about what to expect in a question response.


Duration: 4 hours

Rating: 4.5 of 5

You can Sign up Here


Review: Short and valuable knowledge that can really help improve your interviewing skills. I would say that this course only looks at a few examples that can help you practice, but I would recommend people to continue looking for additional resources when practicing for tech interviews. This course was a great help, but still not enough to be ready for large tech companies. – Benjamin Dourthe.


5. Careers in Data Science A-Z™ (Udemy)

Any student or professional looking to initiate or transition to a career in Data Science or Data Scientists and want to enhance their career in the field will find this course useful. Enrolling in the course will help you become a top-level Data Scientist by learning what to expect, prepare, and stand out in the interview. It will also provide you with multiple video lectures, practice exams, real-life examples, assignments, advice, recommendations, and much more to boost your career at Data Scientist. Moreover, finishing the program with tips & tricks will help you earn a completion certificate by Udemy. Have a look at our compilation of Best Udemy Data Science Courses.


Key USPs –

– Initiate with the basic steps on how to become a Data Scientist and learn to advance through the course relating to the real-life event while interviewing.

– Take your career to the next level by learning the hacks & tips, lessons from failures, recommendations, and apply it on your own.

– A 3.5 hours course with downloadable resource along with lectures that will serve as a knowledgeable session from an experienced faculty.

– Know about the essential aspects of the industry by enrolling in the course and understand what challenges you’ll face while giving an interview.


Duration: 3.5 hours

Rating: 4.6 of 5

You can Sign up Here


Review: From my perspective, the course is very good at helping you understand what’s “coming” from a broad perspective. I’m starting my path towards a Data Science’ ish role, and this course made me really excited about the opportunities! – Ugne Laima Ciziute.



Completing this list of data science interview prep questions, you’ll be able to apply for various data science jobs and pass the interview with good feedback. So, if you have been preparing for a career in data science, and still couldn’t clear the interview due to insufficient knowledge, then don’t look anymore. Pick any course from the list and get that job you have seen in your dreams.