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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.

20,260 data engineer interview questions shared by candidates

Just follow the briefings and you can ask questions when I am through, also let me know when you are done reading and understanding every line. Clear? Q1: What type of job(s) have you had? How did you get your previous job(s)? Q2: What were your main Responsibilities and Achievements in your previous jobs? Q3: Can you work under stress and pressure? Q4: Are you currently employed? Q5: How would you like to be Paid? Direct deposit or Check? Q6: How would you describe yourself? I was asked what bank I use as well....
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Sr Data Engineer

Interviewed at Zuora

3.5★
Mar 31, 2022

Just follow the briefings and you can ask questions when I am through, also let me know when you are done reading and understanding every line. Clear? Q1: What type of job(s) have you had? How did you get your previous job(s)? Q2: What were your main Responsibilities and Achievements in your previous jobs? Q3: Can you work under stress and pressure? Q4: Are you currently employed? Q5: How would you like to be Paid? Direct deposit or Check? Q6: How would you describe yourself? I was asked what bank I use as well....

General questions for screening Fairly difficult python coding test Extremely difficult & intense interview with the 2 company founders, one of them was constantly on his phone within 2 sec of the interview and through out and the other one kept firing very difficult questions.
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Lead Data Engineer

Interviewed at Energy Aspects

3.5★
Apr 24, 2019

General questions for screening Fairly difficult python coding test Extremely difficult & intense interview with the 2 company founders, one of them was constantly on his phone within 2 sec of the interview and through out and the other one kept firing very difficult questions.

The first round you will asked the following question. 1. Explain about the tera sort that happens between the map and reduce phase in hadoop job. 2. Explain about class loader, can you have more than one class loader in jvm. 3. Explain how indexing in implemented in sql databases, be prepared to take about b-tree and tree balancing algorithm. 4. How does java guarantee the hashmap look up in O(1). Round 2 1. You will asked to write java streaming code to parse infinite input while keeping memory low the output should predefined length of random sample.
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Big Data Engineer

Interviewed at ResearchGate

3★
Oct 1, 2017

The first round you will asked the following question. 1. Explain about the tera sort that happens between the map and reduce phase in hadoop job. 2. Explain about class loader, can you have more than one class loader in jvm. 3. Explain how indexing in implemented in sql databases, be prepared to take about b-tree and tree balancing algorithm. 4. How does java guarantee the hashmap look up in O(1). Round 2 1. You will asked to write java streaming code to parse infinite input while keeping memory low the output should predefined length of random sample.

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