Don't focus only on Leetcode SQL questions. Their questions are more higher level. Prepare for advanced ETL questions. You should write the best solution immediately instead of just writing the solution down.
Data Engineer Interview Questions
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 : Décrivez en détail votre niveau d’expertise en langage de programmation.
Question 2 : Expliquez selon vous en quoi consiste le data engineering.
Question 3 : Quelle est votre expérience en gestion de données dans le cloud et avec Apache Hadoop ?
20,200 data engineer interview questions shared by candidates
Show gender, min birthday and max birthdate where a customer bought at least one product
Dot Product with Sparse Vectors, Dot product of sparse vectors stored as hashmaps
How would you design and build a data model to report on active users and number of posts by interface (ipad, iphone, desktop web, etc) given a hierarchy of these interfaces and their rollup groupings, at any and all levels of the hierarchy?
Phone: SQL qs are pretty basic on equi joins, outer joins, and self joins. Coding exercises are pretty basic like word search, etc. Time is a crunch (1hr). You have to keep explaining while coding so that the interviewer online understands your thought process. In Person: Some live coding exercise, tougher than phone qs, product sense, visualization.
Design a relational database for a ride-sharing app.
(After being shown a graph with some data) Can you think of reasons why the data would appear this way?
Easy/medium SQL and coding
Add up a sum of numbers on a whiteboard and give me the average.
Didn't pass the tech screening. 60 min of SQL and Python (30 min and 3 tasks each). SQL is intermediate with given schema, Python rather foundational data structures and algorithms.
Viewing 631 - 640 interview questions