I applied through an employee referral. The process took 1 week. I interviewed at dunnhumby in Apr 2021
Interview
There were two rounds and both were very technical.
Including medium and high level of questions from:
Python, pyspark, Hive, Hadoop, SQL skills, Python skills.
Tough Python and SQL coding questions. And senario based spark and hive questions.
Interview questions [1]
Question 1
Architectural questions, file formats ( in depth) , questions from CV (in depth). Python coding. Couple of SQL question with implementation of window functions, ranking, lead lag, etc etc
I applied through a staffing agency. The process took 2 months. I interviewed at dunnhumby (New Delhi)
Interview
It was easy but time taking. the process took nearly 2 months and 3 interviews were taken, The questions were from basics of Big Data, regarding different file formats, PySpark.
The process took less than a month. Recruiter was very friendly and helped answer any doubts. There was a total of three rounds Tech >> Tech >> Hiring Manager. Throughout the process got prompt feedback and all were very friendly.
Interview questions [1]
Question 1
Questions were on Big Data technologies for me focused on Spark, SQL, Hive, Python.
It was Very smooth .. it focussed on technical knowledge as well as logical skills and aptitude . In total 3 rounds were conducted. The process also had a preliminary written test online.
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