The interview process comprised 4 stages: 1) phone interview with HR (CV screening, personality fit, general knowledge of the company); 2) analytical test (20 minutes 8 questions about Click through rate (CTR), Conversion rate, Cost per click (CPC), Cost per mile (CPM, eCPM), A/B test, incremental margin); 3) phone interview with a sales manager (here you need to be prepared to be challenged with questions like "sell me your product", "now sell me Criteo" and you need to have a clear understanding of Criteo business model -> CPC vs. CPA,CPM) 4) Sales pitch in front of the managers (you will be asked to prepare a powerpoint presentation about Criteo and present it to the managers who will pretend to be a fictitious potential client. It will be a pure negotiation as you will need to "close" this fictitious client at the end by agreeing on a budget to spend for the advertising campaign) TIP: Be concise and effective!

3 rounds - 1st was a casual chat, 2nd with HR and 3rd with the Hiring manager. Short interview process in all however not the most organised. The vibe was very dependent on the person you interviewed with so hard to gauge the employer vibe.