J'ai postulé en ligne. Le processus a pris 3 mois. J'ai passé un entretien chez Walmart (Little Rock, AR) en nov. 2015
Entretien
I first had two phone screening and then I was called on an on-site interview in the Walmart HQ. The agenda of the interview day included a tour of Bentonville and rounds of technical interviews. The interviews were a positive experience (more or less). I have to say though, that the benefits of Walmart are not up-to the industry standards (10 days annual leave, 6 days federal leave and no specific sick days!).
Questions d'entretien [1]
Question 1
What are the data structures in Python? What are the data structures in the Pandas package in Python? (hint - data-frame, index, etc.)
What are generator, iterators, list comprehension in Python?
Define parametric and non-parametric methods. Give some examples.
What are the different types of Sampling methods that you have used?
Give some problems or scenarios where map-reduce concept works well and where it doesn't work.
J'ai passé un entretien chez Walmart (Toronto, ON)
Entretien
It was not that bad, 3 initial rounds overall okay, it would have been nice if they added some more depth in questions and asked good questions.
and it would have been great if they call or tell something before interview.
A former colleague referred me to the data scientist position, and I was excited to dive in. The interview process was intense, starting with a phone screen that led to a technical round focused on SQL and experiment design. I was asked to write a complex SQL query and design an experiment for a forecasting model. Lucky timing — I had reviewed similar questions on prachub.com during my prep, which really helped boost my confidence. After a final behavioral round, I received an offer and happily accepted.
Questions d'entretien [2]
Question 1
Write a SQL query using window functions to find, for each product category, the item with the highest month-over-month sales growth
terrible Data Scientist role interview process, took 3 months and got rejected after final interview where the interviewer didn't have my resume and asked something else which the recruiter did not mention to prepare
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