The process took 2 weeks. I interviewed at Datadog (London, England) in Jul 2024
Interview
The interview process included an initial Zoom with a recruiter, followed by a technical interview with a senior engineer. The final stage was a video interview involving both behavioral questions and technical challenges.
Interview questions [1]
Question 1
I was asked to solve a modified version of the LeetCode coin change problem, where I had to return the count of each coin used to make the minimum amount.
I applied through an employee referral. I interviewed at Datadog (Paris) in Oct 2025
Interview
1 HR screening ( 30 min )
Then
1 Initial coding interview (45 min)
Then
Onsite React interview (1h)
Frontend System design interview (1h)
System design interview ( with something I actually worked on ) ( 45 min )
Behavioral interview ( 45 min )
Interview questions [1]
Question 1
Usual behavioral interview questions : tell me about a time you failed/mentored/delivered under pressure etc...
First I had a session with HR to understand if we were aligned. After that, there was a coding interview, with 2 interviwers and a leet-code like exercise. They send a very detailed email clarifying what we should know to succeed in the interview.
