Skip to contentSkip to footer

Datenwissenschaftler Interview Questions

Salaries
Interviews

Datenwissenschaftler Interview Questions

In einem Vorstellungsgespräch für Datenwissenschaftler stellen Arbeitgeber wahrscheinlich Fragen zur Beurteilung Ihrer Kompetenzen in Datenmodellierung, Problemlösung und Programmierung. Bereiten Sie sich darauf vor, allgemeine Fragen zu beantworten, die Ihre Kenntnisse in Statistik und Datenwissenschaft testen sollen. Sie müssen evtl. auch offene Fragen beantworten, mit denen Ihre Kreativität, Kommunikationsfähigkeiten und Ihre Ausbildung in Datenmodellierung und Programmierung geprüft werden.

Typische Bewerbungsfragen als Datenwissenschaftler (m/w/d) und wie Sie diese beantworten

Question 1

Frage 1: Welche Verfahren der Datenmodellierung bevorzugen Sie und warum?

How to answer
So beantworten Sie die Frage: Daten in verständliche und aktionsfähige Informationen umzuwandeln ist ein kritischer Bestandteil der Arbeit eines Datenwissenschaftlers. Mit dieser Frage können Arbeitgeber Ihre Fähigkeiten in Datenmodellierung und Ihren Hintergrund in Erfahrung bringen. Führen Sie Ihre bevorzugten Datenmodellierungstechniken auf und erläutern Sie die jeweiligen Vorteile wie einfache Anwendung, Flexibilität usw.
Question 2

Frage 2: Wie würden Sie gefälschte Instagram-Konten feststellen, mit denen Verbraucher betrogen werden sollen?

How to answer
So beantworten Sie die Frage: Mithilfe von Fragen wie dieser kann ein Arbeitgeber Ihre Problemlösungskompetenz prüfen. Bei der Beantwortung offener Fragen wie dieser können Sie ruhig klärende Fragen stellen und Whiteboards verwenden, um Ihre Programmier- und Diagrammfähigkeiten vorzuführen. Verdeutlichen Sie Ihren Denkprozess bei der Behebung des Problems.
Question 3

Frage 3: Beschreiben Sie Umstände, die in Python eine Liste, ein Tuple oder Set erfordern.

How to answer
So beantworten Sie die Frage: Personalverantwortliche verwenden Fragen wie diese, um Ihre Python-Programmierkenntnisse zu prüfen. Gehen Sie vor dem Vorstellungsgespräch die Grundlagen von Python wie Listen, Tuples und Sets durch. Sie sollten erklären können, wann und wie jedes Tool von Datenwissenschaftlern eingesetzt wird.

33,626 datenwissenschaftler interview questions shared by candidates

1. Started with a detailed explanation of a past project - what was the business question, how did you come up with the solution, what was your hypothesis, how did you design the A/B test, why did you make certain choices, what was the result etc. Prepare 1-2 examples from your past, where you can talk in depth about the technical elements of your project. 2. Let's say we have a dataset with attributes for a house (Sq footage, locality etc) and house price. How will you predict the house price from these attributes? (Build a multiple regression model) 3. For this multiple regression model, explain the end-to-end process. What steps will you take before building the model, how will you impute missing values, how will you handle outliers etc. What are the underlying assumptions of a regression model? 4. Once the model is built, how will you infer the relationship (sign and magnitude) between the house attributes and house price. How will you explain it to someone that's not a technical person? 5. For the regression coefficients, how will you interpret them, (p-values, confidence interval etc). How will you explain a p-value to a layman 6. Next question was about "how will you segment customers" in order to serve a business requirement, such as determining which customers to show a given ad (I answered with clustering, because the business problem wasn't very specific, he just described it very generally) 7. For clustering, how does it work, how to choose the value of K in k-means. I also said we can use Gaussian mixture models for clustering, which he didn't seem to know because he asked me to clarify what I mentioned. There might have been a few more questions that I don't remember, but the theme of the interview was to check how well you know the basics of Stats/ML. I believe I answered most of the questions correctly so to receive the feedback that I wasn't up to the mark technically seemed like a case of Google not wanting to reveal the real reason, whatever it was. Either way, make sure you confirm the format of the interview with the recruiter. Because I was already interviewing with other companies, I had brushed up on my Stats/ML basics, but you might not be as lucky. Good luck!
avatar

Marketing Data Scientist

Interviewed at Google

4.4★
Nov 19, 2020

1. Started with a detailed explanation of a past project - what was the business question, how did you come up with the solution, what was your hypothesis, how did you design the A/B test, why did you make certain choices, what was the result etc. Prepare 1-2 examples from your past, where you can talk in depth about the technical elements of your project. 2. Let's say we have a dataset with attributes for a house (Sq footage, locality etc) and house price. How will you predict the house price from these attributes? (Build a multiple regression model) 3. For this multiple regression model, explain the end-to-end process. What steps will you take before building the model, how will you impute missing values, how will you handle outliers etc. What are the underlying assumptions of a regression model? 4. Once the model is built, how will you infer the relationship (sign and magnitude) between the house attributes and house price. How will you explain it to someone that's not a technical person? 5. For the regression coefficients, how will you interpret them, (p-values, confidence interval etc). How will you explain a p-value to a layman 6. Next question was about "how will you segment customers" in order to serve a business requirement, such as determining which customers to show a given ad (I answered with clustering, because the business problem wasn't very specific, he just described it very generally) 7. For clustering, how does it work, how to choose the value of K in k-means. I also said we can use Gaussian mixture models for clustering, which he didn't seem to know because he asked me to clarify what I mentioned. There might have been a few more questions that I don't remember, but the theme of the interview was to check how well you know the basics of Stats/ML. I believe I answered most of the questions correctly so to receive the feedback that I wasn't up to the mark technically seemed like a case of Google not wanting to reveal the real reason, whatever it was. Either way, make sure you confirm the format of the interview with the recruiter. Because I was already interviewing with other companies, I had brushed up on my Stats/ML basics, but you might not be as lucky. Good luck!

Viewing 961 - 970 interview questions

Glassdoor has 33,626 interview questions and reports from Datenwissenschaftler interviews. Prepare for your interview. Get hired. Love your job.