Datadog Interview Question

First HR interview was classic opening interview: questions about motivation, Datadog, technical background, work experience, what you're looking for, etc. HR representative understand technical topics really well so don't hesitate to explain you past projects First technical screening was 2 problems in 1h (Leetcode easy to medium, done on Coderpad): * Find max sum root to leaf in a tree * Detect characters repetition in an input string Then for the Panel round of interviews: * HR Partner interview : I interviewed with a Director of Engineering. You have to talk in depth about a past project you took part in that matches what Datadog does and speaks to your experience. I also had a lot of classic interview questions and some technical questions about my project * System Design interview: Design an app that will aggregate your bank account balance and send notifications if it goes below a certain threshold * Coding Interview I: Some problem about having to parse logs then output an aggregated recap when prompted with queries * Coding Interview II: Some problem about having a regex matcher for string with some wildcard mechanisms