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

Job ID: r19498

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 Core group?

The Platform Core group, composed of six agile and human-sized teams, provides the core platform and systems to run Criteo products.

Whether It's

• Providing relational database management system (RDBMS) services.
• Providing platform services for caching systems and others NoSQL technologies.
• Providing Criteo configuration systems Config-as-Code and ScopeConfig.
• Building and operating a highly scalable and resilient ingest and egress service for HDFS.
• Deploying, operateng and developing abstractions for analytic data stores.
• Building and operating u-Slicer reporting tool.
  
  

How You'll Make An Impact

As a Site Reliability Engineer in the Platform Core group at Criteo, you'll play a key role in designing, building, and operating the foundational systems that power all of our mission-critical applications. Whether you're working on relational or distributed databases, key-value stores, or high-performance SDKs, your work will have broad technical impact at massive scale.

What You’ll Do

• Design, build, and evolve large-scale infrastructure and database systems to meet our growing needs in performance, scalability, and resilience - where high speed and low latency are key.
• Collaborate across teams to ensure reliability and consistency, supporting developers with tools, automation, and best practices that balance autonomy and operational excellence.
• Drive innovation and transformation by migrating systems to our private cloud, automating away repetitive tasks, and exploring modern solutions to support evolving business and client needs.
• Take ownership of incidents, troubleshoot critical issues, and continuously improve systems through proactive monitoring, root cause analysis, and long-term fixes.
• Shape the future of our infrastructure by actively contributing to technical vision, sharing ideas, and delivering solutions that have a company-wide impact across hundreds of services and applications.
• Stack: C#, Java, Go, MSSQL, PostgreSQL, MariaDB, Aerospike, Cassandra, ScyllaDB, Ceph, ElasticSearch, Kubernetes
  
  

Who You Are

• You hold a master's or PhD degree in computer science, a related field, or equivalent practical experience.
• You have 5+ years' experience in back-end or SRE roles, with strong coding skills in Python or Go (C# or Java is a plus).
• Deep knowledge of relational databases, including design, tuning, and administration - with hands-on experience in MSSQL, MariaDB, PostgreSQL; familiarity with distributed databases like CockroachDB or Yugabyte is a bonus.
• Solid understanding of distributed systems and cloud-native technologies, especially Kubernetes, and a strong interest in scalability and performance.
• Strong SRE mindset: you're passionate about automation, observability, and reliability at scale.
• Team player with excellent communication skills, a proactive attitude, and a drive to solve complex technical problems collaboratively.
  
  

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 the global commerce media company that enables marketers and media owners to deliver richer consumer experiences and drive better commerce outcomes through its industry leading Commerce Media Platform.

At Criteo, our culture is as unique as it is diverse. From our offices around the world or from home, our incredible team of 3,600 Criteos collaborates to develop an open and inclusive environment. We seek to ensure that all of our workers are treated equally, and we do not tolerate discrimination based on race, gender identity, gender, sexual orientation, color, national origin, religion, age, disability, political opinion, pregnancy, migrant status, ethnicity, marital or family status, or other protected characteristics at all stages of the employment lifecycle including how we attract and recruit, through promotions, pay decisions, benefits, career progression and development. We aim to ensure employment decisions and actions are based solely on business-related considerations and not on protected characteristics. As outlined in our Code of Business Conduct and Ethics, we strictly forbid any kind of discrimination, harassment, mistreatment or bullying towards colleagues, clients, suppliers, stakeholders, shareholders, or any visitors of Criteo. All of this supports us in our mission to power the world’s marketers with trusted and impactful advertising encouraging discovery, innovation and choice in an open internet.

Why Join Us

At Criteo, we take pride in being a caring culture and are committed to providing our employees with valuable benefits that support their physical, emotional and financial wellbeing, their interests and the important life events. We aim to create a place where people can grow and learn from each other while having a meaningful impact. We want to set you up for success in your job, and an important part of that includes comprehensive perks & benefits. Benefits may vary depending on the country where you work and the nature of your employment with Criteo. When determining compensation, we carefully consider a wide range of job-related factors, including experience, knowledge, skills, education, and location. These factors can cause your compensation to vary.