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Staff Software Development Engineer

  • Hybrid -
    • Paris, France
  • Engineering
  • Permanent - Full Time

Staff Software Development Engineer

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Job ID: r20327

What You'll Do:

You will join a team in charge of the AI-Platform used by many Criteos to experiment and operate their machine learning models.

The team mission is to enable all people using AI for Performance and Innovation to use best-in-class AI methods in Criteo Production: build and operate the ML OPS stack of Criteo.

  • Help Criteos that consult with our team on their machine learnings experiments and production usage of our platform.

  • Design and implement new features and guide the architectural evolution of the platform.

  • Investigate and solve scalability & performance bottlenecks that arise with platform usage growth.

  • Migrate to newer or better libraries / frameworks.

Our stack:

  • A C# client prediction library used in very high scale contexts.

  • Scala/Java and C# components to handle the experimentation and production pipelines.

  • Nvidia Triton for high scale deep prediction inference on GPUs.

  • Python tools and libraries used by ML engineers.

Who You Are:

  • You have at least 4-5 years of experience with developing and extending large and complex systems.

  • You have MLOps experience.

  • You are proficient in, at least one programming language such as C#, Scala, and Python. You can adapt very quickly, choose and use the best tool for the job.

  • You love algorithms and new technology.

  • You are also a great team worker and a great communicator in English, both written and spoken. You are strongly committed to quality designs, automated testing and documentation.

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:

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.

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.

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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.

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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.

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Great people shape greater opportunities.

At Criteo, we believe great people and reliable products are essential to build an open future for all.
Everything you need to know about our culture, vision, values, and how we live them with people, both in and out of Criteo, is in our Culture Book. Discover who we are, what we do, and how we act as a company and as Criteos!
Our culture
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Meet our Criteos in France!

Criteo came to spring off of a few great minds, back in 2005. From the start-up incubator to the global company we are now, Criteo has grown, standing now for 37 offices and further coworking spaces across the globe. In France, we welcome around 1,000 Criteos in our two spacious and collaborative hubs of Paris and Grenoble.

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The Future is Yours.

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