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Mckinsey Round 1 Interview (PEI + TEI) - Had a very strange interview. Your Thoughts?

Hi All,

I recently completed my McKinsey Round 1 interview for an experienced role in Implementation (PEI & TEI). The interview was quite different from my expectations, and I’d appreciate your thoughts:

PEI (Connection): I prepared my story using the STAR method, but less than a minute in, the interviewer interrupted and asked me to summarize the opposing opinion and all my actions in under a minute. He then interrupted almost every 30-60 seconds with questions—some not really relevant to the story, such as asking me to explain a client process in detail—and jumped between situation, actions, and results in a haphazard way. This made it difficult to structure my story.

Time Allocation: Coaching sessions suggested ~15–20 min for PEI and ~30 min for TEI. Mine was ~35 min PEI and only 10 min TEI. The TEI felt smoother but still fragmented, with frequent jumps across situation, result, and technical points, and once again, I felt I never really got the chance to structure my story.

Repetition in TEI: After I explained the client context and problem statement, he asked questions I had already answered (“who was the client,” “what was the problem”), which felt like he wasn’t paying attention. He also seemed to read pre-prepared questions from his laptop.

Bundled Questions: The questions were often complex and multi-part. He would ask part 1, then say “this is a multi-part question” before moving to part 2 or 3, sometimes totally unrelated to the first. It almost felt like a memory test, since by the time he reached part 3, I often couldn’t recall the exact framing of part 1. Because it was a PEI + TEI, I didn't take notes while he was speaking, since I expected a discussion.

CV Drill-Down: In the final 5 minutes, he said, “I have gone through your CV in detail,” then asked me to list all projects I had worked on specifically with my current employer of the last 2 years (not sure why), giving 1–2 sentences on each. He then randomly stopped me on one of them and asked for deeper technical details. While I don’t mind CV deep dives, this was quite unexpected.

Overall, the interview felt very unstructured. Given McKinsey’s emphasis on structured communication, I was surprised at how chaotic the discussion was.

Do you think this was just a tough interview style, or does it sound like a very bad interview? Appreciate your thoughts.

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Thor
Coach
2 hrs ago
50% discount in September | Ex‑McKinsey EM | 8+ years experience | 100+ Interviewer Sessions | 50+ Candidates Coached

To me, it does not sound like the best interview experience, or a fantastic interviewer. I am sorry that your interview felt this unstructured and haphazard in nature.

With regards to the PEI, it is actually very common in McKinsey interviews that the interviewer interrupts often. They do this because there are certain core traits they are trying to unearth about the interviewee, which may not come out in sufficient detail during the version of the story the interviewee narrates. 

That being said, the interviewer would ideally notify you of this fact up front, and assist you in maintaining your structure as they interrupt for specific deep-dives. It should be the interviewers job (to at least some degree) to make the interviewee feel comfortable, so they can display their skills (my humble opinion at least, and my modus operandi).

Hope this helps, and hope you nailed the interview regardless, 

Thor