I applied online. The process took 2 months. I interviewed at Boston Consulting Group in Nov 2018
Interview
Took 2 months to get back after application. Sent a data science challenge on hackerrank.
Given a dataset which we cannot even see properly on hackerrank, build 2 ML models and answer insight related questions within 2 hours. It made no sense. The dataset was in raw form (transaction level data), had to be studied and converted into features and target, split for training/testing and report accuracy. This is not how a data science task can be completed.
Interview questions [1]
Question 1
Given a dataset which we cannot even see properly on hackerrank, build 2 ML models and answer insight related questions within 2 hours. It made no sense. The dataset was in raw form, had to be studied and converted into features and target, split for training/testing and report accuracy. This is not how a data science task can be completed.
I interviewed at Boston Consulting Group (Boston, MA)
Interview
Coding challenge, then soft skills which i did not get to. Coding challenge was online timed in a third party tool. Not very hard but needed more time and didnt move quick enough.
The process includes six stages: HR screening, CodeSignal online assessment, basic pandas and data science case interview, followed by three business case interviews focused on practical problem-solving and business impact.
Interview questions [1]
Question 1
Check CodeSignal’s documentation for data science interviews to understand the types of tasks
I applied online. I interviewed at Boston Consulting Group (Tokio)
Interview
Four interviews in total, all in Japanese. The first interview consisted of Python coding and technical case questions. The next two were both technical case interviews. The final interview with a partner was a mix of behavioral and business case questions.
Interview questions [1]
Question 1
You have a grocery store chain client who wants to increase their sales. They have stores across the country. How would you approach it?