I have a Bain interview coming up in three weeks. I have a PhD in natural sciences and no business background, so I’m looking for tips, preparation strategies, and advice on how to perform well in the interviews.

Question

Hi,

I have an upcoming Bain interview in three weeks for a Consultant role. I have a PhD in Chemistry but no business or consulting background.

How should I best prepare over the next three weeks? Do I need to learn business terminology and frameworks from scratch, or should I focus mainly on case interview practice? I’d appreciate any tips or strategies to perform well given my scientific background.

Thank you!

Answer 1

Hi there,

Congrats on the interview. First, your PhD is an asset, not a gap. You already know how to form a hypothesis, test it with data and draw a conclusion, and that’s a big part of what a case is. What you need now is to apply it in a business context.

Here are my thoughts:

1. Learn the basics and the key frameworks
Get comfortable with the core concepts: revenue, costs, profit, margins, market share and customer segments. Then understand the key frameworks and learn how to tailor them to each case. The profitability, market entry and M&A frameworks are a good place to start, since they cover a large share of the problems you’ll see.

A very helpful resource is Victor Cheng. His case interview video series, around 12 hours, covers hypotheses, frameworks and structuring with good examples for free on Youtube. I highly recommend watching it.

2. Spend most of your time on cases
A rough plan for 3 weeks:

Week 1: cover the basics and frameworks, and solve 8 to 10 cases, a few on your own and the rest with partners.
Week 2: do live cases with partners, and try to fit in a few sessions with someone experienced, like a former consultant or a coach. With only three weeks, that’s the fastest way to spot your gaps and get the feedback you need.
Week 3: fix your weak spots, sharpen your mental math, and do a couple of mock interviews under real conditions.

3. Don’t neglect the fit interview
Bain cares a lot about fit. Prepare a strong answer to why consulting after a PhD, and build 3 to 4 stories from your research, such as leading a project, handling a setback, or explaining complex work to non experts. That last one is gold for consulting.

4. Translate your PhD into business language
Don’t talk about the science, talk about the impact: “I managed a 3 year project, coordinated with 4 labs, and delivered results on time.” That’s the language interviewers connect with.

Three weeks is tight but very doable if you stay focused. Good luck.

Best,
Hatem