I applied through an employee referral. The process took 3 months. I interviewed at Boston Consulting Group (Milán)
Interview
Initial technical screening - 1.5h coding assessment
HR meeting
2 technical business cases
Last step - 3 technical/business cases
Several discussions with HR in between technical cases and they provided a good preparation course
Interview questions [1]
Question 1
Technical questions about data science and to resolve several (5 in total) business cases related to data world
test techniques sur code signal avec 11 questions : 2 probas, 4 connaissance applicatifs sur l utilisation des algos en data science, 3 jupyter notebooks avec la manipulation de dataframes, et fitting du model
Interview questions [1]
Question 1
2 probas, 4 connaissance applicatifs sur l utilisation des algos en data science, 3 jupyter notebooks avec la manipulation de dataframes, et fitting du model
I applied online. The process took 2 weeks. I interviewed at Boston Consulting Group (Estocolmo, ) in Mar 2025
Interview
Initial CV screening
Hackerrank data science questions.
Typicall regression/classification/model-validation questions. Interpretability, l1, l2 etc.
Typical probability puzzles with die and some mental math.
LeetCode medium-hard data engineering questions using pandas.
Interview questions [1]
Question 1
If you notice that the training loss is high and the validation loss is high, what is this a sign of?