I applied through a recruiter. I interviewed at Datadog (Paris) in Feb 2026
Interview
Standard FAANG-like process. Had two coding interviews, then one distributed system design, one behavioral and a project review where you have to talk about a project you have worked on in the past.
Interview questions [1]
Question 1
Can't reveal, but standard coding and system design
I applied through a recruiter. I interviewed at Datadog in Oct 2025
Interview
HR reached out on linkedin
1 phone screening round one week later
two weeks later 4 rounds in virtual onsite (2 coding rounds, 1 system design and 1 behavior on one day)
Interview questions [1]
Question 1
LC medium level questions in coding rounds, virtual onsite coding is slightly harder but not hard level.
System design is design metrics monitoring system.
I applied through a recruiter. I interviewed at Datadog
Interview
The process is long, but I was accompanied by the HR recruiter, which was very helpful explaining the process and expectations. I reached the end of the process, but did not receive an offer. The process includes LLM design, live coding, AI assisted coding, Backend system design, experience & values. The hiring bar is high, prep well and do your best!! In the worst case, you will learn more :)
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