Boston Consulting Group Data Scientist interview experience

I had a 90-minute test with multiple tasks and it focused on data processing—pandas-style work and some basic model-building concepts. After that, I talked with HR about the role and process.

Then came two technical case interviews, each lasting about an hour. One case centered on improving predicted demand for goods in a supermarket so storage wouldn’t overflow while supply wouldn’t run out, and it forced me to think about the metrics and choose machine learning models. During the discussion, the interviewer drilled into how I would implement the features I proposed, not just what model I’d