I went through the Bain EM loop for a role leading their Product Engineering team. Not the consulting arm, but the internal tech organization that builds Bain's proprietary tools and client-facing platforms. A different beast from typical tech company EM interviews.
Here's what the loop looked like:
Round 1: Recruiter + hiring manager intro: 45 min. They wanted to understand what kind of teams I'd run and what I look for when hiring engineers. Very conversational. The hiring manager was thoughtful, asked real questions.
Round 2: Technical depth: I had expected to be quizzed on architecture. Instead it was 40 minutes of me walking through the most technically complex project my team had shipped. They probed hard on: what I personally did vs. delegated, where we hit walls, what I'd do differently. No coding, but they wanted real technical fluency. Vague answers bombed, specific answers landed.
Round 3: Leadership and people scenarios: Three scenarios, all behavioral. One was about a high performer who started missing deadlines. One was about handling a reorg that removed scope from my team. One asked how I'd build out hiring for a team that had to double in a year. The expectation at Bain is that you have thought through these before, not that you're winging it.
Round 4: Partner / executive panel: Two people, 60 min. More strategic. What's your philosophy on build vs. buy? How do you align engineering roadmap with business outcomes when the business side doesn't speak tech? This is where consulting-firm thinking shows up. They want engineers who can code-switch into business language.
Leveling: They're generally careful about this. The EM titles map differently here than at Big Tech, so ask explicitly. Director-track vs. IC-track EM is a real distinction.
Overall: a more thorough process than most. If you're coming from pure tech and haven't thought about client-facing communication as a core competency, that gap will show.