I received a follow-up for a call very quickly after sending my application. Interview with recruiter over the phone took about 20 minutes. Despite repeated attempts to reach her after, I never heard from her again. Takeaway: if a company doesn't care about you now during the recruitment process, they probably won't later. Based on the recurring feedback here, I'd say this to the recruiters at Datadog - Have some manners. It is rude to not get back to candidates you've spoken to. Be a decent recruiter (human being). Show some respect and get back to your interviewees.