Starting a new non-consulting job + preparing for MBB applications

New answer on Apr 22, 2021
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Anonymous A asked on Apr 22, 2021

Hi everyone :)

I recently graduated from one of the target schools, and have chosen to start working in the field I studied. After 2 or 3 years of gaining working experience, I plan to apply to MBBs for a senior entry-level role (eg senior BA at McKinsey). However, the issue is that, I believe there will be intensive training sessions (full day) for the first few months at the company, and any advice on how to schedule a very structured timetable to prepare for MBBs' applications (Imbellus, BCG or Bain online assessments, and case studies) would be much appreciated.

I have read Victor Cheng's and learnt some basic business concepts through some of the online sources. Would Friday night and Saturday (afternoon - night) be a good plan to start preparing for the first few months of full-time working?

Thank you :)


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Content Creator
replied on Apr 22, 2021
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut


Don´t worry, many people work full-time jobs and prepare at the same time.

My advise would be perhaps consider working with a coach, coz even a couple of sessions would be super helpful in having the game plan.

You have 2 main workstreams ahead:


The "Integrated FIT guide for MBB" has been recently published in PrepLounge´s shop (

It provides an end-to-end preparation for all three MBB interviews, tackling each firms particularities and combining key concepts review and a hands-on methodology. Following the book, the candidate will prepare his/her stories by practicing with over 50 real questions and leveraging special frameworks and worksheets that guide step-by-step, developed by the author and her experience as a Master in Management professor and coach. Finally, as further guidance, the guide encompasses over 20 examples from real candidates.

You can see plenty of reviews from candidates who purchased it already.

Furthermore, you can find 5 free cases in the PrepL case regarding FIT preparation:

Intro and CV questions >

Motivational questions >

Behavioural questions (LEADERSHIP) >

Behavioural questions (ENTREPRENEURIAL DRIVE) >

Behavioural questions (LEADERSHIP) >

Feel free to PM me for disccount codes for the Integrated FIT Guide, since we still have some left from the launch!


You don´t have any more time to the classics of Viktor Cheng, "Case in point" book, etc. You need to get hands on asap:

1. Practice cases with partners asap, as many as you can do.Find experienced partners who can provide a good feedback

2. Practice your math skills, both in your cases and with ad hoc exercisess, such as:

1. ​Multiplying double digit numbers (

2. Leveraging math tools (Mimir math for iOS), Math tool on Viktor Cheng website to practice

Furthermore, you should practice as much as you can, and ensure that you cover:

1. Profitability cases- basic profitability framework.

2. Idea generation cases: for any specif issue

3. Growth cases: market penetration, new product launch, product mix change, etc.

4. Pricing cases

5. M&A cases

6. Valuation cases

7. Value chain cases

Hope it helps!



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Content Creator
replied on Apr 22, 2021
#1 rated McKinsey Coach | Top MBB Coach | 5 years @ McKinsey | Author of the 1% | 120+ McK offers in 18 months

Hey there,

Many people I coach prepare for MBB while working long hours in a full-time job.

I think there are four key elements in your preparation.

  1. Stretch out your preparation. While I usually recommend candidates to prepare for 1 month with a few hours every day and some off-days in-between, in your case you might want to take out 3-5 months to spend a few hours every weekend. There is no rush.
  2. Establish a baseline quickly, prioritize and be effective with your prep. This is arguably the part where coaching can help the most. The quicker you have established an objective baseline on where you stand with cases, personal fit interviews, and aptitude tests, the quicker you can start preparing properly, tailor your schedule to train your weaknesses, and improve on your strengths. Also, it pays off big time to learn the key habits needed for MBB early on.
  3. Learn on the job. Don't underestimate how the exposure in your current job will help you with MBB interviews. You will learn more about the consultant's mind and the consultant's communication in your current role, which will benefit you in MBB interviews. Soak everything up in your new job and apply it in your case and fit interview prep and mock interviews!
  4. Don''t burn out. It can be very stressful to prepare for MBB interviews while working long hours in parallel. You want to make sure that you have enough off-time every now and then to relax, focus on your friends / family / hobbies, etc. Don't make the MBB prep your only focus

I have written an article on how to structure your preparation. In your case, just extend it by a few months and adjust accordingly:

Let me know if you have specific questions per DM!


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Content Creator
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut
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