I applied through an employee referral. The process took 3 weeks. I interviewed at Datadog
Interview
It was a long process, and I didn't even make it past the third round. It would have involved six interviews (final one branded as a fifteen minute "conversation" with the executive overseeing that part of the company) and a project. The people were very nice.
Interview questions [1]
Question 1
What is a time you failed and how did you grow from that?