I applied online. The process took 2 months. I interviewed at Boston Consulting Group (London, England) in Mar 2024
Interview
Multiple rounds of interviews:
- first round was statistic questions (e.g. conditional probabilities, probability trees, precision and recall) and coding questions (python data science, pandas) on an online platform (hackerrank).
- second round was one business/ data case study with an consultant and another live coding interview
- third round would have been another two case studies
Interview questions [1]
Question 1
How would you structure a machine learning data set for this business problem (e.g. prediction of tire sales)? Which variables would you create and include, what would your target value look like? What pitfalls do you have to look out for if your data set is structured like that?
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?