I applied through other source. The process took 5 days. I interviewed at Walmart (El Paso, TX) in Jan 2016
Interview
I applied to a Data Science position through a Kaggle.com competition in which I placed well. The first interview consisted of a screening process conducted by a non-technical person. He asked how you would rate yourself (1-5) in Mathematics, Statistics, Machine Learning, Data Visualization and other very general non-technical questions.
A second interview consisted of three persons with technical background and they asked questions related to Machine Learning, Regressions and mostly regression troubleshooting techniques
Interview questions [1]
Question 1
What are the assumptions of a Linear Regression?
What is multi-collinearity, how do you fix it in a regression?
Explain the difference between bagged and boosting models
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.
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
I applied through an employee referral. The process took 2 weeks. I interviewed at Walmart (Bentonville, AR) in Mar 2026
Interview
A recruiter phone call and then a coding round. SQL medium + predictive modeling. I think the modeling task could be a take-home assignment. However, the test was closed before the promised time. It was a 89-minute test.
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