Some SQL questions, a data modeling problem, and a PySpark exercise.
Senior Data Engineer Interview Questions
2,560 senior data engineer interview questions shared by candidates
- Preguntas de tecnologías usadas. - Preguntas técnicas sencillas de como aplicar esas tecnologías o de explicar la decisión de usar esa en lugar de otra.
Introduce yourself. Describe projects you involved in. What difficulties you have met and how you solved?
What is a challenge that you faced and how did you overcome it?
Design a data model that allows for different types of analyses. Also some Python & basic SQL questions
Why do you want to work for Mission Cloud?
Interview questions were relatively too simple to understand what they want. I am definitely sure that it was waste of time to spend on their interview process as they wasted 4 hours of mine and then said no, they need someone with more exposure to Scala. In fact, they rarely asked Scala questions, so feedback was really useless. In fact, Scala was not asked in the last interview at all. So, literally I could have saved at least 1 hour. Questions were very simple: What are RDD, DF and DS.? What are types of transformations? Difference between map and flatMap? How do you tune your spark application? Tell me about your project? One coding challenge that was very complicated to think about. Of course interviewer knows because they have gone through it online. It was going into Bitwise multiplication to find answer. Team Lead interview was very much like a chitchat and I was hoping like they liked my profile so there is no difficult question here. However, after a week when they didn't follow up. I sent two emails to recruiter and she called me saying that they need someone with more Scala exposure. I was furious to have wasted my 4 hours. They should learn to have proper sequence of interviews. If candidate didn't pass second round then why did you waste 2 extra hours. I will make sure I don't apply to any of their positions in future.
How do you choose the right database for onboarding banking clients? How do you ensure zero down time for banking clients?
Basic and redundant behavioural questions. Case study to parse the web data and perform analytics.
Mostly related to fundamentals. You have to have a strong base in which ever data processing system you are working on - RDBMS or distributed or in-memory You need to be good at problem solving - questions can come as real-time scenarios. You don't need to be strong in syntax, but should be strong in concepts and approach
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