Senior Machine Learning Engineer

Senior Machine Learning Engineer - Causality Join to apply for the Senior Machine Learning Engineer - Causality role at Criteo. 2 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. What You’ll Do At Criteo, we’re not just crunching numbers — we’re redefining how brands connect with their audiences. By joining the AI for Performance group, you’ll become part of a global R&D organization of 1,000+ engineers, while working day to day in a small Product Engineering team (5–7 people). You’ll sit at the intersection of machine learning, data, and product, helping us measure and predict the causal impact of our advertising, and directly influence how our products perform at scale. If you’re excited by incrementality, experimentation, and large-scale ML systems, this role is for you. Responsibilities Analyze the causal impact of Criteo’s advertising campaigns using experiments, third‑party data, and advanced measurement techniques. Develop machine learning models to predict causal impact and influence our bidding strategies. Design and build multi‑stage data pipelines, processing terabytes of data every day. Contribute to tooling for A/B test analysis, ensuring accurate measurement of campaign and product performance. Collaborate closely with Data, Product, and Engineering teams to bring research into production. Actively contribute to a strong scientific and engineering culture, sharing best practices and new ideas. Who You Are You hold a Master’s degree or PhD in Machine Learning, Computer Science, or a related quantitative field. You possess at least five years of experience as a ML Engineer or Data Scientist/ Researcher. You have hands‑on development experience in at least one mainstream programming language (Python, Java, C++, etc.). You are skilled in sourcing, cleaning, manipulating, and analyzing large‑scale datasets, ideally in a Hadoop-based environment. Experience with both classical and state‑of‑the‑art machine learning techniques is a strong plus. You are fluent in English and comfortable working in international, multicultural teams. You are curious, rigorous, and motivated by problems where science, product, and business impact meet. We acknowledge that many candidates may not meet every single role requirement listed above. If your experience looks a little different from our requirements but you believe that you can still bring value to the role, we’d love to see your application About Criteo Criteo is a leader in commerce media, helping brands, agencies, and publishers create meaningful consumer connections through AI‑powered advertising solutions. We’re shaping a more open and sustainable digital future for advertising. At Criteo, our culture is as unique as it is diverse. From our offices across the globe or from the comfort of home, our 3,600 Criteos collaborate together to build an open, impactful, and forward‑thinking environment. EEO Statement We foster a workplace where everyone is valued, and employment decisions are based solely on skills, qualifications, and business needs—never on non‑job‑related factors or legally protected characteristics. What We Offer Hybrid work model blending home with in‑office experiences. Learning, mentorship & career development programs. Health benefits, wellness perks & mental health support. Diverse, inclusive, and globally connected team. Fair pay & perks—attractive salary, performance‑based rewards and family‑friendly policies, plus potential equity depending on role and level. Additional benefits may vary depending on country and employment nature. Senior Details Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Engineering and Information Technology Industries: Advertising Services Location: Boulogne‑Billancourt, Île‑de‑France, France. #J-18808-Ljbffr