Meh. Snappy recruiter who was in a good/bad mood at the flip of a coin depending on the day. But I stayed professional and did the take-home assignment, only to then be ghosted by the recruiter.
In retrospect, I should not have done the take-home assignment. Take-home assignments are a time sink and aren't transferable to other companies.
Companies only give take-home assignments because candidates put up with them. I see why they give them: it's arguably a better assessment of your skills than LeetCode is, but your time is valuable too, and spending a few hours for a reject isn't pragmatic for anybody. These assignments bias towards those without a job, without a family, or even without a life. And it's hard to look at a company positively, especially when the interview process is subpar.
Feel free to come to your own conclusions; this is just mine. Don't just look at my interview, though. Look at the other negative interviews here and realize the ratio is higher than most companies.
Background experience
The following metrics were computed from 1 interview experience for the Datadog Software Engineer role in Japan.
Datadog's interview process for their Software Engineer roles in Japan is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Datadog's Software Engineer interview process in Japan.