AI Data Analyst Intern

Criteo; Barcelona; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Hybrid work model

Mentorship programs

Health benefits

Wellness perks

Mental health support

Equity potential

Competitive salary

Job summary

Criteo in Barcelona is seeking a proactive data science/CS student to help build AI agents that automate key workflows. You will create data assets, translate tasks into AI skills, design prompts, and collaborate with business and tech teams in a hybrid setting.

Join a team that values curiosity, data quality and testing, with opportunities to learn and grow while working across global offices and from home.

Qualifications

• Pursuing a degree in data science, engineering, computer science or related field.
• Basic Python proficiency.
• Familiarity with SQL and structured datasets.
• Understanding of data quality and documentation principles.
• Interest in LLMs, AI agents and workflow automation.
• Ability to break complex processes into clear, logical steps.
• Clear writing skills for prompts, instructions and requirements.
• Analytical mindset with attention to detail and methodical testing.
• Curious, proactive and eager to learn; fluent in English.

Responsibilities

• Build datasets and knowledge assets powering AI agents.
• Clean, label and document data to ensure quality and usability.
• Analyze business workflows with process owners.
• Break workflows into tasks, rules and decision points.
• Translate tasks into reusable AI skills and instructions.
• Design and refine prompts for specific business needs.
• Help build and configure agents for critical workflows.
• Define guardrails, human approvals and escalation paths.
• Create test cases and evaluate agent accuracy and reliability.
• Improve agents through feedback and share reusable best practices.

Skills

Python basics

SQL familiarity

English fluency

Analytical mindset

Attention to detail

Prompt writing

Cross-functional collaboration

Curiosity

Learning mindset

Process breakdown

Education

Pursuing a degree in data science/engineering/CS/analytics

Job description

What You'll Do:

Help transform how Criteo operates by building AI agents that progressively take over tasks across critical business workflows. Working alongside business and technical teams, you will create data assets, turn workflow tasks into reusable AI skills, and contribute to agent development.

What you’ll learn and do

• Build datasets and knowledge assets that power AI agents.
• Clean, label and document data to ensure quality and usability.
• Analyze business workflows with process owners.
• Break workflows into tasks, rules and decision points.
• Translate tasks into reusable AI skills and instructions.
• Design and refine prompts for specific business needs.
• Help build and configure agents for critical workflows.
• Define guardrails, human approvals and escalation paths.
• Create test cases and evaluate agent accuracy and reliability.
• Improve agents through feedback and share reusable best practices.

Who You Are:

• Studying data science, engineering, computer science, business analytics or a related field.
• Basic proficiency in Python.
• Familiarity with SQL and structured datasets.
• Understanding of data quality and documentation principles.
• Interest in LLMs, AI agents and workflow automation.
• Ability to break complex processes into clear, logical steps.
• Clear writing skills for prompts, instructions and requirements.
• Analytical mindset, attention to detail and a methodical approach to testing.
• Curious, proactive and comfortable experimenting and learning.
• Collaborative, able to communicate across business and technical teams, and fluent in English.

You don’t need to tick every box—curiosity, initiative and a willingness to learn matter.

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.

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.