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Software Engineer Intern - Backend or Fullstack

  • Hybrid -
    • Grenoble, France
  • Engineering
  • Internship

Software Engineer Intern - Backend or Fullstack

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Job ID: r13375

What You'll Do:

The Product Engineering team builds the products that make Criteo tick: from developing industry-leading machine learning techniques to building high scale/low latency real-time applications (over 5M QPS, handling over 300 Bn HTTP requests daily), to delivering first-class client interfaces, both API and UI, with forward-thinking UX at their core, all using state of the art technology.

During your internship (6 months) and according to your choice, skills, and interest, you can tackle one of the following subjects:

  • Back-end: participate to build large-scale pipelines and systems that make the best decision in a very short time, half a million times per second

  • Full stack: MasterTag request production and parsing - Technical stack: a bit of TypeScript/JavaScript, C# (.Net Frmwk, .Net Core), and Mesos

  • Front end: Design and implement a component in a web application that will be used to manipulate big JSON markup easily. The goal is to provide a tool to create or change layout banners in a simple and efficient way

  • Data quality in the RichTimeline (Remove fraudulent users and identify low-value data)

  • In a team of 5-7, you will be working 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 likely affect millions of users instantly

Who You Are:

  • You are in your final year of study in Software Engineering or a related field and are available for 6 months

  • You have experience in developing web-based applications. You occasionally participate in coding competitions

  • You are experienced in Object Oriented Programming

  • You have a strong sense of ownership and a dislike for passing the buck

  • You are a problem solver, a fixer, and a creative technologist. We believe coding is a talent and a passion, not just a skill

  • You are a strong communicator and a team player who can work efficiently with others

  • You are fluent in English

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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