-
Criteo R&D Supporting The DevOps Community At DevCon 2025
Earlier this month, I had the chance to attend DevCon 2025, one of Romania’s leading technology conferences. Held on November 5–6 in Bucharest, the event gathered IT professionals, developers, and industry leaders for two packed days of sessions, demos, and discussions. For me, it was also a great opportunity to meet my teammates in person,…
-
Our recap from SRECon 2025
From October 7–9, 2025, the Convention Centre Dublin hosted SREcon EMEA, the premier gathering for engineers dedicated to site reliability, distributed systems, and operational excellence. Organized by USENIX, this event brought together hundreds of SREs, platform engineers, and infrastructure leaders from across tech companies based in EMEA. The conference is known for its culture of…
-
AuthZilla, Rethinking Authorization For The Modern Era
Authorization is a cornerstone of the Identity and Access Management (IAM) stack. Yet, despite its critical role in securing digital systems, it suffers from a lack of standardized mechanisms, protocols, and formats to communicate authorization-related information across platforms. This gap has real consequences. According to the OWASP Top 10, Broken Access Control is the #1…
-
Insights from Kernel Recipes 2025
Supporting tech communities should be a cornerstone of the software industry. The digital products we use daily have been created by software engineers who are very passionate about what they build, but especially about how they build it. The Linux kernel is, without a doubt, one of those essential pieces of software that enable the…
-
Introducing AppChecker: The Guardian of Software Quality at Criteo
In a world where distributed systems have become the norm and development cycles are accelerating, software quality can no longer be left to chance: it must be measured, verified, and integrated into the daily work of teams. At Criteo, this requirement is even more critical because services are numerous, interdependent, and essential to the proper…
-
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,…
-
Agents, APIs, and Advertising: Lessons From Engineering Our MCP Server
MCP, Model Context Protocol, has made quite some noise in the past year as it promises a simpler, user-driven, integration of tools into Large Language Models (LLMs). At Criteo, we believe that MCP will be key to empowering our clients and giving them the control to create and manage advertising campaigns in a new way:…
-
The Future is Now: Key Insights from the AI Engineer Paris Conference
When I walked into the conference, there was a mix of excitement and unease in the air. Everyone seemed to sense it: we weren’t just talking about “what’s coming someday”, we were already living through a shift. The main idea came up again and again, in different words and contexts: we’re moving from writing code…
-
Building an Internal Developer Portal: Insights from the Journey So Far
At Criteo, the Platform department in R&D provides the set of common technical building blocks used to build all Criteo products and shared services. The main users are all the software engineering and analytics teams across Criteo. Over the past few years, the Platform teams have made significant strides in enhancing self-service capabilities to improve…
-
Why And How We Organize Coding Dojos
If you are looking for a way to both have fun and improve your coding skills (or those of your team), I have some good news: we have open-sourced a repo that contains material to organize coding dojos! 🎉 👇 GitHub – criteo/coding-dojo: Some content to organize some coding dojos Some content to organize some…