Senior Site Reliability Engineer (PRE Platform)

What You'll Do:

The concept of Product Reliability Engineering (PRE) draws inspiration from the principles of SRE. At Criteo, PRE acts as the bridge between Product, Platform Engineering and Infrastructure. The PRE group comprises eight global engineering teams with a common objective: to build the most reliable platform in AdTech.

How You'll Make An Impact

As a Senior Site Reliability Engineer, you'll work closely with product engineering to dig into the code of our apps, systems, and pipelines to assess where optimization is needed most.

You'll tell stories with meaningful monitoring and, hopefully, never be paged during your on-call rotation because we've worked hard to make our platform reliable. Speaking of on-call, with an example team of five, you're looking at only 10 weeks in a year, and your time is compensated! Not bad, right?

You'll learn skills from other team members along the way and have opportunities to teach us! It's perfect for an engineer who likes shipping code and wants to be involved in all aspects of reliability, efficiency & maintainability.

In the PRE Platform team, you will help design production-oriented platforms at scale, and support reliability and scalability efforts for the Platform Factory group. So, you will in particular help the teams of the Factory group, in charge of providing R&D developers with tooling to help them build applications: CI and CD pipelines, code and app management, observability, identity management stacks, etc.

Our missions as a PRE team:

• Engage in and improve the whole lifecycle of services - from inception and design, through to deployment, operation, and refinement.

• Support services before they go live through activities such as system design consulting, developing software platforms and frameworks, capacity planning, and launch reviews.

• Optimize and maintain services once they are live by measuring and monitoring availability, latency, and overall system health.

• Scale, automate, and evolve systems by pushing for changes that improve reliability and efficiency.

• Practice incident response and blameless postmortems.

• Python, Go, C#, Scala, Kubernetes, Mesos...

Who You Are:

• You hold a master's or PhD degree in computer science, a related field, or equivalent practical experience.
  

• You have at least 5 years of experience as SRE or Software/DevOps Engineer.

• You have extensive experience with software development in one or more programming languages, and data structures or algorithms.

• You're at ease with designing, analyzing, and troubleshooting large-scale distributed systems.

• You have experience working in computing, distributed systems, storage, or networking.

• You are used to debug, optimize code, and to automate routine tasks.

• You show a systematic problem-solving approach, coupled with effective verbal and written communication skills.

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.