Be true to yourself. I recently heard a coworker comment 'The company hires the person before the skillset' whilst I'm not sure if this is our formal hiring strategy, but resonated very strongly with me. My reading of this comment is that Nous is looking for people who are well-rounded and interested in the world, with a belief that if we can hire people with the right attitude, we can teach them the technical skills on the job.
Prep on mental maths Be yourself we very much do value diversity Just prep general interview questions
I would recommend preparing for the case study interviews through plenty of practice.
Best prepare by researching the companies values and make sure your values align too. Ensure that you can communicate this to the interviewer. Next go through some practice case studies and understand the thinking and logic needed to work through it.
Its hard to prepare for this interview outside of having a real clear understanding of your own values and whats important to you in a working environment. Cultural understanding, both in, and outside of Nous, seemed to be important when i was being interviewed.
I encourage candidates to become comfortable with being uncomfortable. The point of these interviews aren't to confirm that you can answer each question correctly, rather, to verify that you take the right approach when confronted with ambiguity. Consulting is about problem solving. Industry doesn't hire consultants because they know the answer, but because they know how to get to the answer.
I'd recommend practicing management consulting case studies, however, don't become overwhelmed or think you need to know everything. The exercise is really to see if you can think in a structured way about a problem, not that you get everything right. Also, the examples online are great practice but not all case studies are similar to the work that Nous does, the case studies Nous goes through in interviews are past Nous work, so no "how many people in New York wear red in a day" kind of questions (if you know you know). I'd recommend reading examples on the website of some of Nous's completed projects and thinking about how you'd go about solving those problems. Also, it's worth noting the interview process is very long, with lots of time between each round of interviews, so be patient.