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Data Engineer Interview Questions

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Data Engineer Interview Questions

Le data engineer est un professionnel de l’informatique présent dans presque tous les secteurs. Il/Elle suit l’évolution et les tendances des données pour orienter les stratégies futures de l’entreprise. Une part essentielle de son travail consiste à transformer des données brutes en données exploitables en créant des pipelines et des systèmes de données.

Questions d'entretien d'embauche fréquentes pour un data engineer (H/F) et comment y répondre

Question 1

Question 1 : Décrivez en détail votre niveau d’expertise en langage de programmation.

How to answer
Comment répondre : Avant l’entretien, révisez votre CV et dressez la liste des programmes que vous maîtrisez. Si vous vous apercevez que vous ne connaissez pas un logiciel que l’entreprise utilise majoritairement, mettez en avant votre motivation et votre volonté de vous former au logiciel en question.
Question 2

Question 2 : Expliquez selon vous en quoi consiste le data engineering.

How to answer
Comment répondre : Soulignez votre rôle au sein de l’entreprise et par rapport à d’autres fonctions telles que data scientist pour définir clairement votre contribution. Précisez la différence entre un ingénieur axé sur les bases de données et un ingénieur axé sur les pipelines de données.
Question 3

Question 3 : Quelle est votre expérience en gestion de données dans le cloud et avec Apache Hadoop ?

How to answer
Comment répondre : Renseignez-vous sur les logiciels de gestion de données dans le cloud utilisés par l’entreprise (notamment Apache Hadoop). Un data engineer doit maîtriser les langages de programmation et les systèmes de gestion des données couramment employés dans le secteur, dont Apache Hadoop.

20,258 data engineer interview questions shared by candidates

Hacker Rank 3: Oh surprise, more regex. (I'm just joking, I can't remember the title but let's called file processing). Given a text file containing network connections information (space separated) like this: something - - "GET something something" [another thing with spaces in the middle] 4500 where: something = first column - = second column - = third column "Get something...." = forth column and so on. The last column, 4500 represents the number of bytes transmitted. You need to filter the records where a number of bytes are bigger than 5000 and the sum of bytes of those records.
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Data Engineer

Interviewed at Kueski

4★
Sep 4, 2017

Hacker Rank 3: Oh surprise, more regex. (I'm just joking, I can't remember the title but let's called file processing). Given a text file containing network connections information (space separated) like this: something - - "GET something something" [another thing with spaces in the middle] 4500 where: something = first column - = second column - = third column "Get something...." = forth column and so on. The last column, 4500 represents the number of bytes transmitted. You need to filter the records where a number of bytes are bigger than 5000 and the sum of bytes of those records.

The minimum number of operations to reach a number using only incrementing and multiplying by 2 if you were to start from 0. Not so easy SQL question. Surprise regex and bash questions. The rest is easy multiple-choice questions based on data structures and OOP.
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Big Data Platform Engineer

Interviewed at PeakGames

3★
Mar 24, 2022

The minimum number of operations to reach a number using only incrementing and multiplying by 2 if you were to start from 0. Not so easy SQL question. Surprise regex and bash questions. The rest is easy multiple-choice questions based on data structures and OOP.

Combination of filler fake HR generic questions, describe an ideal day, what do you think about working remotely, then lots of detailed questions to find out what you know about various technologies, processes and what you would recommend. This is the part you need to be careful. I'd recommend frankly not interviewing with this company and finding ways to test them to see if they are seriously hiring.
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Data Engineer

Interviewed at InVision

3.8★
Nov 1, 2018

Combination of filler fake HR generic questions, describe an ideal day, what do you think about working remotely, then lots of detailed questions to find out what you know about various technologies, processes and what you would recommend. This is the part you need to be careful. I'd recommend frankly not interviewing with this company and finding ways to test them to see if they are seriously hiring.

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