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21,097 data engineer interview questions shared by candidates

L1 round has questions on SQL, Hive, Python, Spark.Cleared the first round. L2 was F2F where i was asked to write code on Python. SparkCore, SQL, SparkSQL. The question were to read the files and find out max sold product basis of each product. And then was F2F which was on Hadoop: Rack Awarness Map and FlatMap Map and Reduce Partititon and Bucketting. Could not answer 2 questions on Hadoop Architecture.
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Big Data Developer

Interviewed at Datametica

3.4★
Aug 11, 2019

L1 round has questions on SQL, Hive, Python, Spark.Cleared the first round. L2 was F2F where i was asked to write code on Python. SparkCore, SQL, SparkSQL. The question were to read the files and find out max sold product basis of each product. And then was F2F which was on Hadoop: Rack Awarness Map and FlatMap Map and Reduce Partititon and Bucketting. Could not answer 2 questions on Hadoop Architecture.

The technical interview covered the take-home assessment, which required me to explain why I did it a certain way. The questions would require one to think critically about one's methodology. Other questions include when to use TDD, how to build a data pipeline given X, Y, Z tables. The cultural interview consisted of questions on past experiences/situations, as well as hypothetical scenarios (e.g. being stuck in a situation between two stakeholders). The bar raiser round was similar to the cultural/behavioural interview.
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Data Engineer

Interviewed at foodpanda

3.5★
May 24, 2023

The technical interview covered the take-home assessment, which required me to explain why I did it a certain way. The questions would require one to think critically about one's methodology. Other questions include when to use TDD, how to build a data pipeline given X, Y, Z tables. The cultural interview consisted of questions on past experiences/situations, as well as hypothetical scenarios (e.g. being stuck in a situation between two stakeholders). The bar raiser round was similar to the cultural/behavioural interview.

SCHEMAS: cards customer_id (INT) card_number (VARCHAR) open_date (DATE) 3612 4733-8080 2/15/2020 1825 5743-6687 2/3/2020 1825 4521-3390 5/15/2020 transactions transaction_id (INT) card_number transaction_datetime (UTC) transaction_amount (DECIMAL) 2214 5743-6687 02/20/2020 17:00 122.76 2652 5743-6687 02/27/2020 08:15 3.63 3456 4521-3390 06/02/2020 13:44 89.17 daily_customer_addresses customer_id home_address state report_date 2051 123 Main St NY 08/29/2020 2051 123 Main St NY 08/30/2020 2051 123 Main St NY 08/31/2020
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Senior Data Engineer

Interviewed at Petal

4.1★
Feb 2, 2021

SCHEMAS: cards customer_id (INT) card_number (VARCHAR) open_date (DATE) 3612 4733-8080 2/15/2020 1825 5743-6687 2/3/2020 1825 4521-3390 5/15/2020 transactions transaction_id (INT) card_number transaction_datetime (UTC) transaction_amount (DECIMAL) 2214 5743-6687 02/20/2020 17:00 122.76 2652 5743-6687 02/27/2020 08:15 3.63 3456 4521-3390 06/02/2020 13:44 89.17 daily_customer_addresses customer_id home_address state report_date 2051 123 Main St NY 08/29/2020 2051 123 Main St NY 08/30/2020 2051 123 Main St NY 08/31/2020

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