Backend Software Engineer in Data

• Bucharest, Romania
• Engineering
• Permanent - Full Time

Job ID: r20675

What You'll Do:

Partner Data Integration (PDI) is a product and engineering team at Criteo responsible for building the APIs, user interfaces, and data pipelines that power the ingestion, enrichment, and management of product catalog data. The team enables internal and external clients to configure, monitor, and explore catalog data, while developing scalable pipelines to integrate and enhance data quality, ensuring it is accurate, multi-dimensional, and ready for use across Criteo’s Performance and Retail Media platforms.

• Craft high-quality, maintainable code to build business-critical APIs, services and backend components to serve our clients’ creatives ensuring compliance with rigorous SLAs (less than 45ms) and handling up to 40 billion requests per day.
• Contribute to integrate and test Google's Privacy Sandbox proposals within CRITEO's creative ecosystem, contributing to a fundamental shift in internet advertising practices.
• In a multi-cultural team of 5-7, you will be collaborating closely with your mentor to drive your project, design and ensure best practices are applied. You can ask questions and participate in all knowledge-sharing sessions/workshops, etc. You are encouraged to actively voice your ideas whilst learning how to build and ship quality code into production which will affect millions of users instantly.
• Work with many other engineering teams to develop long-term roadmaps, ML models, designs and architectures to scale this infrastructure to meet product and business requirements.

Who You Are:

• You are a passionate software engineer with a keen interest in low-latency/large-scale back-end systems combined with a genuine eagerness to understand and implement product and business requirements.
• You have at least 4 years of experience with developing and extending large and complex systems.
• You are strongly committed to quality designs, automated testing and documentation.
• You're proficient in Java, Scala or C#.
• (Bonus) Familiarity with Machine Learning theory and models.

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.

Perks & Benefits for all Criteos.

Happy people make healthy teams, so we value employee well-being above all else. Discover the perks & benefits we offer all our Criteos!!

Ways of Working

Trust and flexibility are at our core, so is the power of being together. Our hybrid model blends empowerment with shared in-person experiences, making space for both. We believe this is the most valuable way to foster collaboration in a way that helps us grow, together.

Learning & Career Development

As your skills multiply, opportunities do too. So, we care to help you nurture your potential, identify new goals, and define what you want out of your career. Discover how we have diversified our learning resources and training catalog for you to shape greater opportunities. You care for your career growth, and we do too.

Corporate Social Responsibility

We care to build an open future for our community and beyond. Discover how our people fuel our Corporate Social Responsibility from the bottom up, embracing but also embodying and promoting values of diversity, equity, and inclusion through everything they do. Together, we strive to build a future that truly includes everyone.