iHeartMedia Senior Data Engineer Interview Questions

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iHeartMedia

Interviews

Senior Data Engineer Interview

28 Nov 2018

Anonymous interview candidate

Declined offer

Positive experience

Easy interview

Application

The process took 6 weeks. I interviewed at iHeartMedia (New York, NY) in Nov 2018

Interview

Good overall process. Recruiter approached me through Vettery. Initial brief call with the recruiter. 2 Phone screens with the interviewer on my programming and SQL skills. Followed by 4 rounds onsite interview rounds with the team. Got the offer. However, I had to decline it.

Interview questions [5]

Question 1

Least common ancestor of 2 nodes in a binary tree

Answer question

Question 2

Group strings of similar characters together. Basically using HashMap with sorted string as a key and values is the Linkedlist of strings

Answer question

Question 3

Joining 2 diff datasets using SQL. Using group by and order by

Answer question

Question 4

Basic understanding of Spark and the overall project architecture to see the use of Big Data tools. Differences between RDD, dataframe and datasets.

Answer question

Question 5

Use of different components in the project and importance of each of them to accomplish the user requirements.

Answer question

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iHeartMedia

Senior Data Engineer Interview

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Senior Data Engineer Interview