I have applied online. I have received the invitation for intro meeting in 3 days and the Tech Source. She asked for my experience, my previous projects and the tech stack I have worked on. She was very curious to about the product and asked me to explain the flow of the product. Datadog is very flexible with my 3 month notice period and they have also given me the choice of work locations to choose from. I have received an invitation for second round (first technical). This interview is with one of the team members and based on leetcode style easy-medium range problems. I was given 1 hour for two problems. I have to explain my algorithm and why I have chosen the specific data structures and the time complexities. I was not able to manage the second problem.