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Fullstack Software Engineers (Intermediate or Senior)

  • Hybrid -
    • Bucharest, Romania
  • Engineering
  • Permanent - Full Time

Fullstack Software Engineers (Intermediate or Senior)

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Job ID: r20106

What You'll Do:

​CRITEO is looking for Fullstack Software Engineers to join our amazing Product Engineering team in Bucharest!

Are you passionate about building applications that make life easier for developers and end-users alike? At Criteo, we’re looking for someone who thrives in collaborative environments, loves solving complex problems, and is excited about shaping the future of APIs.

Your main responsibilities :

  • Partner with Product teams, R&D colleagues, and our API Guild to design APIs that truly make an impact.

  • Collaborate with UI/UX experts to create user-friendly, accessible interfaces.

  • Implement and test applications with unit, integration, and end-to-end testing to ensure reliability.

  • Review code with your teammates to maintain high standards and long-lasting quality.

  • Work closely with multicultural R&D teams to connect client-facing applications with the rest of Criteo’s systems.

  • Continuously deploy applications, keeping our systems agile and responsive.

  • Bring fresh ideas from meetups and conferences to strengthen our frameworks, libraries, and best practices in testing and CI/CD.

  • Our current tech stack includes C#/ASP.NET Core on the back end and Angular on the front end

Who You Are:

  • You believe APIs are the backbone of modern technology.

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

  • You have at least 3 years of experience working on large, complex systems.

  • You’re skilled in Object-Oriented Programming (C#, Python, C++, Java) and/or front-end development with JavaScript, Angular, or React.

  • 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.

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

The Future is Yours.

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