Datadog Software Engineer interview experience

It felt structured and a bit more applied than straight LeetCode, and it set the tone for what came next. Roughly a week later I moved into a virtual onsite with multiple rounds: coding twice, then a system design round, and finally a behavioral round.

On the coding parts, I got asked to implement a simple regex parser, and I also worked through log-related problems where the goal was to match and parse stream data in a way that fit how observability systems behave. The second coding round pushed on code quality and clarity; I remember it coming down to how cleanly I handled edge cases