Criteo Software Engineer Interview Questions
& Process

I had my coding interview today for the Senior Software Engineer position at Criteo (Ann Arbor branch), and I just want to say—it was a great experience. The interview was conducted via the CoderPad platform. I was invited to a session with two very kind and professional senior engineers. The task involved reviewing a Java code snippet, identifying a couple of bugs, and implementing a missing method. The code was clean, readable, and not overly complex, which made it easy to dive into the logic. That said, I was a bit stressed going into it—this was my first time using CoderPad (I’m more used to working in IntelliJ), and the role itself means a lot to me. At the beginning, I had a bit of a mental block. But the interviewers were incredibly supportive—respectful, patient, and encouraging. Their calm demeanor really helped me settle down and get back on track. Once I got into the flow, I actually had a lot of fun. The task was engaging and did a great job of testing essential skills like debugging, understanding unfamiliar code, and applying fixes effectively. Honestly, if I had known in advance how enjoyable and fair the process would be, I wouldn’t have been nearly as nervous. To sum up: the interview team was fantastic, and the experience exceeded my expectations. If you're preparing for an interview with Criteo—stay calm and trust yourself. You’ll do just fine. Big thanks to the team at Criteo for the opportunity, and best of luck to future candidates!

The process for this Full-stack software engineer role starts with a call from talent acquisition. After that, there's a tech screen where you'll do a short live coding problem. If you're more front-end focused, you'll build a simple front-end app with whatever framework you like (or vanilla JS). For back-end, it's an algo problem (like Leet code, medium). If you pass the tech screen, you move on to two more technical interviews: a full-stack coding interview where you gotta interact with an API and process stuff to show on the web, and a system design interview which is pretty standard. The very last step is a behavioural interview with your potential manager.

It was a bad interview experience, I can feel the interviewers didn't respect the candidate too much, and they might even laugh at your answer! First interview was Tech Screen, the interviewer will ask you questions as many as possible. Second interview was Live Coding, the interviewer will ask you finish a algo question (hard level Leetcode question) in 40 minutes, and complete all tests. He will degrade you if you can't find best solution. He will judge you impolitely! Third interview was Design, the interviewer will a question and criticize you if you make any mistake. No respect, and No seriously at all!