Asked about current project , python, sql, spark. Asked about conflicts at work place and how i resolved it. If you are in this organisation they expect you to be dynamic and learn a bit of everything as per the review cycles.
I applied online. I interviewed at McKinsey & Company (Brussels) in Jul 2026
Interview
HackerRank with 2 coding questions and many single-choice questions including DE, ML, AI and System Design. It was rather hard especially because of limited time - after submiting the last code answer I was unable to check if all the tests were passed and then the site closed.
Interview questions [1]
Question 1
Questuins in the field of DE, ML, AI and System Design situations.
I applied online. I interviewed at McKinsey & Company
Interview
Amazing process, first round was a leetcode style take home assignment. Followed by a case interview (technical and behavioral). Lots of communication from the recruiter and interviewers. All and all very impressed even though I was not offered a position.
I interviewed at McKinsey & Company (Lisbon, Lisbon District)
Interview
Entrevista técnica para produtos internos, envolveu um consultor e um engenheiro de dados sênior. Não houve prova de código, mas foram à fundo em conceitos para tentar entender o meu nível enquanto candidato
Interview questions [1]
Question 1
Qual o seu nível de conhecimento de Docker? Em que situações utilizou?
Data Engineer applicants have rated the interview process at McKinsey & Company with 3.1 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 50% positive. To compare, the company-average is 64.4% positive. This is according to Glassdoor user ratings.
Candidates applying for Data Engineer roles take an average of 47 days to get hired, when considering 28 user submitted interviews for this role. To compare, the hiring process at McKinsey & Company overall takes an average of 40 days.
Common stages of the interview process at McKinsey & Company as a Data Engineer according to 28 Glassdoor interviews include:
Phone interview: 33%
Skills test: 17%
Presentation: 17%
One on one interview: 17%
IQ intelligence test: 6%
Personality test: 6%
Other: 3%
Group panel interview: 3%
Here are the most commonly searched roles for interview reports -