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Introducing CLEPR, our model for semantic understanding
At Criteo, retail media is about helping brands reach shoppers directly on retailers’ property, right at the digital shelf where purchase decisions are made. Through CMAX, our unified retail media platform, we connect advertisers to retailers’ audiences with Sponsored Products that appear alongside native results in onsite search and browsing experiences. In this context, the…
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What the EPM Role Looks Like in Practice at Criteo
In our previous post, we explained the Engineering Program Manager role at Criteo at a high level: EPMs sit at the intersection of business ambition, technical reality, and execution, helping complex cross-team initiatives move from intent to delivery. But if you are considering this role, that high-level description is only the beginning. The more interesting…
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Our Experience at Devoxx France 2026
From April 22 to 24, we were back on site at Devoxx France with a booth and two talks from our Tech Ambassadors, Estelle Thou and William Montaz. This year’s edition had a great atmosphere, strong turnout, and one very clear trend: AI was everywhere, with sessions on LLMs and agentic systems filling up fast…
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How We Cut HAProxy Fleet GCP Cost in Half by Moving from N2D to C4D
When you run a large production footprint in Google Cloud, changing a VM family is never just a hardware refresh. In our case, HAProxy sits on a critical path of the platform, serving as part of the traffic layer that hundreds of downstream systems quietly depend on every day. That means even a seemingly straightforward…
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Creating a Culture of Learning Inside Your Company
I’ve been working in tech for more than fifteen years now, and when I first started building software, books were one of my main ways to learn. I would carry them everywhere, reading on commutes, during lunch breaks, and late at night. That’s why, for me, everything started with a book. Titles like The Pragmatic…
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Agentic AI Symposium 2026
A science‑fueled, multidisciplinary approach to Agentic AI Authors: Jean-Yves Franceschi & Mariia Vladimirova At the Criteo AI Lab, we believe that making AI both trustworthy and useful requires a continuous and open dialogue between scientists, engineers, policymakers, regulators, and industry leaders. As AI systems evolve from passive predictors to agentic systems capable of planning, using tools,…
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🏆R&D Community Awards 2025
Our annual ceremony, where we celebrate achievements together. For the third consecutive year, we gathered to celebrate our achievements within the R&D community and recognize the contributions of all our R&D Ambassadors. At Criteo, expressing gratitude to our teammates is a consistent practice throughout the entire company. In our R&D department, our expert community embraces…
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How RecSys & LLMs Will Converge: Architecture of Hybrid RecoAgents
Recommender systems have become critical infrastructure in commerce. Their role is not only to surface relevant items but also to shape how users explore, compare, and decide. Improvements in recommendation translate directly into superior business outcomes: higher engagement, more conversions, stronger loyalty, and more efficient allocation of marketing budgets. Over the last couple of years,…