Bcg Gamma Business Analyst Interview Guide

The most memorable part of the process was a market-sizing case about electric vehicles: I had to estimate how much energy all electric cars in Spain consume over the course of a year. It was less about producing a perfect figure than setting up a sensible structure, stating assumptions clearly, and working through the calculation logically.

The process had four stages. I first spoke with HR, who reviewed my CV and asked standard soft-skill and personal-fit questions. That conversation was fairly straightforward and focused on my background and how I approached working with others. The second interview was with a Senior Analyst and combined the business case with questions about the energy sector. The sector discussion meant that the interview was not purely a generic consulting exercise; I also needed to show that I could reason about the industry context around the case.

The most unusual stage was a take-home-style test sent by email. I was given two questions and had three hours to solve them using Excel and PowerPoint. The time limit made it important to move quickly from analysis to a clear presentation instead of spending the entire window refining calculations. After that, I had a final interview with the team manager. This conversation returned to energy-sector questions but also gave the manager a chance to get to know me and assess my fit with the team.

Overall, the cases were manageable with prior market-sizing practice, but the combination of sector knowledge, structured estimation, and a timed Excel-and-PowerPoint exercise made the process broader than a standard fit interview. I ultimately received and accepted the offer. My main takeaway is to prepare to explain every assumption in an energy-related sizing problem and to practice turning a short analysis into concise slides under a strict deadline.