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Senior Software Engineer - ACR/ Budget

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

Senior Software Engineer - ACR/ Budget

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Job ID: r18353

What You'll Do:

At Criteo, our Budget team builds and scales the critical backend systems that manage advertiser budgets across the globe. If you enjoy solving complex, large-scale data challenges and working with modern technologies such as Apache Flink, Kafka, Spark, Python, and .NET, we'd love to hear from you.

As part of a collaborative and multicultural team, you'll contribute to initiatives that directly impact Criteo's core business and help deliver a seamless campaign experience for thousands of customers worldwide.

Your main missions :

  • Collaborate closely with Product Managers, Program Managers, and fellow R&D teams to deliver high-impact solutions in an Agile environment.

  • Design, develop, and maintain robust and scalable data pipelines capable of handling large volumes of data.

  • Partner with Product teams and our API Guild to create impactful, user-centric APIs.

  • Build reliable applications through comprehensive unit, integration, and end-to-end testing.

  • Work alongside UI/UX specialists when needed to help create accessible and intuitive user experiences.

  • Participate in code reviews and knowledge sharing to continuously improve code quality and engineering practices.

  • Collaborate with diverse teams across Criteo to connect client-facing products with the broader platform ecosystem.

  • Contribute to a culture of continuous delivery, helping us deploy improvements quickly and safely.

  • Bring new ideas and perspectives from conferences, meetups, and the wider tech community to enhance our architecture, frameworks, testing practices, and CI/CD tooling.

Who You Are:

  • You care deeply about Developer Experience and want your work to empower other developers.

  • You have at least 5+ years of experience building and evolving large-scale, complex systems.

  • You’re proficient in Object-Oriented Programming (C#, Python) and big data technologies (Hadoop, Flink, Spark)

  • Your exposure to front-end technologies (JavaScript, Angular, or React) is a strong plus

  • You love reusability and enjoy making complex things simple.

  • You’re curious about new technologies and may even explore them through personal projects.

  • You bring a positive, collaborative mindset and a “can-do” attitude to challenges.

  • You thrive in Agile environments and are passionate about delivering high-quality code.

What do we offer?

  • You will part of a recognized engineering R&D team of 800 engineers in our industry with an active presence to international conferences, meetups and demos all around the globe.

  • Our culture keeps evolving, and you will be expected to contribute actively with new ideas to complement and enhance the existing programs that include frictionless internal mobility, 10% time, mentoring, technical talks, hackathons, etc.

  • At Criteo, we value your work-life balance with a hybrid policy where everyone can follow his own rhythm between time to the office and work from home.

  • We offer a competitive package and many perks according the location.

  • Are you curious about our company culture? Don't hesitate to take a tour in our career website : https://careers.criteo.com/en/teams/engineering/

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.

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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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