J'ai postulé en ligne. Le processus a pris 2 semaines. J'ai passé un entretien chez Walmart (Bentonville, AR) en oct. 2018
Entretien
Hiring manager approached me on Linkedin and set up a phone screening. Then the second round of technical interview was arranged where there were three people interviewing me via Zoom. They tested my coding skills in Python and SQL through a cloud coding platform as well as many ML concepts. I was too nervous to perform well. The interviewers became impatient when I failed to answer some of the questions.
Questions d'entretien [1]
Question 1
1. Live coding:
a. Create a list of 10 consecutive integers between 0 and 10 - Python
b. based on the above list, print out odd numbers - Python
c. Given a list of stores and products, derive a store-product summary table containing fraction of products for each store. (SQL)
2. Diff between supervised, unsupervised, reinforcement learning
3. What does p, d, q mean in Arima time series model?
4. If you have weekly sales and want to predict future sales, which time series models are you going to use?
5. how to deal with overfit
6. how to deal with outliers, any model to detect it
7. what is PCA
8. what is R squared, diff between r squared and adjusted r squared
9. what can you do to overcome multicollinearity
10. what is regularization, difference between Lasso and Ridge
11. How to deal with unbalanced binary classification
12. what you should do if a time series model is stationary
J'ai postulé via une autre source. J'ai passé un entretien chez Walmart (Bengaluru)
Entretien
It not a good experience… they send juniors to interview senior data scientists. And seriously no issue with as well…. But atleast ask your employees to brush up their skills first. We had a discussion on dropout method used in NN and he had wrong understanding of the concept. This is unacceptable from a Walmart employee.
J'ai passé un entretien chez Walmart (Sunnyvale, CA)
Entretien
I gave interview for Sr Data Scientist role. It was supposed to be a hacker rank round but turned out to be a technical screening round on the interview day.
J'ai postulé via la recommandation d'un employé. Le processus a pris 2 semaines. J'ai passé un entretien chez Walmart (Bangalore Rural) en juill. 2025
Entretien
Began with my explaining my experience, two projects in detail, ML, DL concepts, some easy coding two questions.The interview was good and went on for 45 mins. The result was shared within five days.
Questions d'entretien [1]
Question 1
SVD, forecasting, vanishing gradients, finding missing element in array, string manipulation