First call with human resources, and then you have three or four technical interviews with first a conversational interview with an applied scientist, and then coding, and explaining a project. It is hard.
I applied online. The process took 3 weeks. I interviewed at Datadog (Paris)
Interview
coding sur une plateform de competitive programming en ligne puis entretien avec les ressources humaines puis entretien technique avec un software engineer, on peut choisir n'importe quel language de programmation
Interview questions [1]
Question 1
citez les 3 choses les plus importantes pour vous dans un poste
I applied through a recruiter. The process took 4 weeks. I interviewed at Datadog (Paris) in Jun 2025
Interview
The process is made of 4 interviews. One coding exercise (leetcode Easy/Medium level), one ML fundamentals, one EDA + ML System design and one fit interview with a manager.
You get to pass all interviews if you succeed the code interview, which is great because you might do poorly on one topic but shine on another. Don't give up because you didn't perform well on a round.
Interview questions [1]
Question 1
Give me an example of a project where you failed, what happened and what did you learn from it ?
