Senior Software Development Engineer

What if, in your next adventure, you were surrounded by people who, like you, look for an unlimited playground to explore, share, and test, would you care to hear more? You've opened the right door As an R&D team, making sure your ideas are heard and encouraged is what we strive to do

What You'll Do:

What's the Platform Offline Data group?

The Platform Offline Data group, composed of six agile and human-sized teams, provides companywide universal services for data collection, data management and data observability.

The Offline Data group plays a central role in ensuring that data flows, is managed, and is made actionable across all of Criteo. Interested in building the backbone of data at scale, enabling Criteo's product teams to deliver high-impact insights?

How You'll Make An Impact

As a Software Development Engineer in the uETL team at Criteo, you'll contribute to develop and support flexible scalable service for logs data aggregation managed by user configuration.

What You'll Do

• Design, develop, and maintain scalable backend systems for log ingestion, data cataloging, and batch/stream processing.
• Contribute to multi-tenant platforms where reliability, performance, and developer autonomy are key priorities.
• Partner with data engineers, SREs, and product teams to deliver highly available services with clear SLAs and observability.
• Modernize and migrate workloads to cloud-native architectures (e.g., GCP, Kubernetes), optimizing for performance and cost.
• Build automation, testing, and monitoring into every layer of the stack.
• Participate in incident response and root cause analysis to improve platform resilience.

Technical environment: GCS, k8s, Apache Spark

Monitoring/metrics: Zabbix, Graphite, Sentry, Loki, OpsGenie

Who You Are:

• You hold a master's degree in computer science, Engineering, or related field—or equivalent practical experience.
• You have 6+ years of experience in back-end development, ideally in large-scale data platforms or infrastructure.
• You are proficient in at least one backend language (Python, Java, Scala, or Go) and have strong software engineering fundamentals.
• You're familiar with distributed systems, stream/batch data processing, and cloud-native tools (e.g., Kubernetes, Terraform).
• You understand observability and have a reliability-first mindset.
• You enjoy working in cross-functional teams and collaborating with SREs and data users.
• Bonus: experience with Apache Spark, Cassandra, or GCP-based data pipelines.

Take a look at our R&D blog on Medium for access and insight into our engineering culture and achievements.

We understand that you might not meet each of the outlined requirements listed above, or may have experience that is a little different from our specifications. If you think that you can still bring value to the role, we want to hear from you.

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.