Candidates applying for Data Scientist - 3 roles take an average of 21 days to get hired, when considering 1 user submitted interviews for this role. To compare, the hiring process at Walmart overall takes an average of 15 days.
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I applied online. The process took 3 weeks. I interviewed at Walmart (Bengaluru) in Apr 2025
Interview
Not very well structured and every round involved was mix up of everything - resume based, pandas and DSA based coding , baiscs around Descion trees, XGBoost, clustering , probability, GenAI (Transformers, Bert ) , cross entropy maths etc.
Interview questions [1]
Question 1
1. How to cluster concentric clusters
2. P(X> t) given mean, std of normal distr
3. How do you follow advancements in Gen AI
4. How to improve bert
5. Xgboost , adaboost , rf based bias var
6. Why we need assumptions in arima, can we fit arima for straight line equation