Agent evaluation & guardrails — help build frameworks that evaluate multi-turn agents (LLM-driven personas talk to a real agent, LLM judges score relevance, coherence, helpfulness, safety and accuracy), so agentic products ship faster and more safely.
Product intelligence prototypes — build retrieval / embedding-based systems for product understanding (e.g. semantic search over publisher content for supply discovery, brand safety, or audience creation).
LLM-powered diagnostics at scale — use LLMs to detect, sample and route quality issues across complex product pipelines (e.g. tracing where a catalog signal is lost and who should fix it).
Messy, cross-functional product problems — jump into ambiguous product and client challenges (identity, measurement, trading, creative validation) and use fast prototyping and AI tooling to converge on solutions that work in the real world.
Overall, your responsibilities include
Design, build and evaluate AI agents and reusable skills that solve real product and analytical problems
Support the team in framing product and client problems early with PM, R&D, GTM and Design — then prototype narrow, high-value solutions quickly
Build evaluators, guardrails and golden-dataset tests so the systems you ship are trustworthy
Turn repetitive manual tasks into trusted agents that scale beyond you
Mine large data sets and turn them into understandable and actionable insights
Master our internal analytic datasets, tooling and AI stack
Who You Are
Master's degree student or higher (Mathematics, Computer Science, Physics, Engineering, Economics, etc.)
Available for at least 5 to 6 months from January 2027.
End of study or gap year internship
Outstanding analytical skills, creative thinking, and a builder's mindset — you like to prototype, not just analyze
Fluency in the core toolkit of Data Science: Python; SQL; manipulating large-scale data sets; building data pipelines; descriptive and predictive modeling; implementing visualizations, dashboards and reports
Curiosity and ideally hands-on experience (through projects, coursework or personal tinkering) with the AI-native toolkit: LLMs and prompting, building agents or skills, retrieval / embeddings, or agent evaluation — or a strong eagerness to learn these fast
Excellent interpersonal and communication skills, pro-active and independent to work with!
PS: Please apply with an English resume
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!
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!
Who We Are
We’re Criteo, the Commerce Intelligence Platform. Criteo helps businesses turn shopper signals into commerce outcomes while delivering more relevant experiences for shoppers. We use proprietary commerce intelligence and AI decisioning to drive relevance for shoppers and performance for businesses.
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.
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
🏢 Ways of working – Our hybrid model blends home with in-office experiences, making space for both.
📈 Grow with us – Learning, mentorship & career development programs.
💪 Your wellbeing matters – Health benefits, wellness perks & mental health support.
🤝 A team that cares – Diverse, inclusive, and globally connected.
💸 Fair pay & perks – Attractive salary, with performance-based rewards and family-friendly policies, plus the potential for equity depending on role and level.
Additional benefits may vary depending on the country where you work and the nature of your employment with Criteo.
