Is it a disadvantage at MBB to be part of an entry level peer group where everyone except for me is a fresh graduate?

Hi,

Any relevant work experience is an advantage. I believe chances are higher that you'll be hired as an experienced hire or at least a senior analyst role (McK scale).

Once you are in - your experience does not matter. The more experience you have - the more you can show in your resume on the Team Page of the client's proposal. But it's not a game-changing factor and your feedback from your 1st project will be much more important

Best!

I don't think there's a preference for "candidates fresh out of top undergrad courses instead for analyst level roles". More experience is more experience period. It's possible with your experience + Masters you could get into the "middle" role, i.e. Junior Consultant at BCG.

In terms of internal hiring, people care about your reputation at the company and what they think you can produce as a team member much more than something as trivial as being a fresh candidate or not.