FullStack Software Engineer

Join our R&D organization of 1,000+ engineers and work within a Product Engineering team of 5–7 people, where you'll own and develop one key component of our solution. You'll collaborate across disciplines to build end-to-end features, from intuitive user experiences to scalable backend services, used at global scale.

Your role at a glance

• Design, build, and maintain fullstack features, from responsive, user-friendly frontends to robust backend services

• Own a product component end to end, from architecture and implementation to production and continuous improvement

• Collaborate closely with Product, Design, and Program teams to turn user and business needs into impactful solutions

• Build scalable, high-performance backend services and APIs, with strong attention to reliability and quality

• Develop modern, maintainable frontends, focusing on usability, accessibility, and performance

• Continuously deploy using modern CI/CD practices to ship features safely and frequently

• Contribute to a strong engineering culture, sharing best practices, mentoring others, and bringing ideas from the tech community

• You're a passionate fullstack engineer who enjoys working across the stack and understanding the why behind what you build

• You have 4+ years of experience developing complex systems and user-facing applications in production

• You have solid experience with backend development (e.g. Java, C#, Python, Scala, ) and modern frontend frameworks (e.g. React, Angular, Vue)

• You care about clean architecture, reusable code, and simple solutions that scale well

• You're curious and proactive, always interested in learning new tools, technologies, and patterns

• You have a collaborative, "can-do" mindset and enjoy working in cross-functional teams

• You're comfortable in Agile environments and take pride in shipping high-quality, well-tested features

Our recruitment process : what to expect?

• HR Interview min) – Get to know each other, align on expectations, and answer your questions

• Technical Screen (30 min) – A short live coding exercise on CoderPad, focused on problem-solving

• In-depth Coding Interview (2 hours) – A hands-on technical session on CoderPad, you'll be asked to develop simple features on a small web application.

• System Design Interview (1 hour) – A collaborative discussion on designing scalable fullstack and backend systems, held on Zoom

• Final Interview – A behavioral, culture-focused conversation with senior team members (Zoom or onsite)

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​

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.  

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.