Senior Site Reliability Engineer, Criteo

PRE Platform

Salary not provided

+ Performance-based rewards and family-friendly policies, plus the potential for equity depending on role and level

Kubernetes

Python

Scala

Senior and Expert level

Paris

More information about location

The commerce media platform for the open internet

Open for applications

The commerce media platform for the open internet

1001+ employees

B2BMarketingAdvertisingData Analysis

Open for applications

Salary not provided

+ Performance-based rewards and family-friendly policies, plus the potential for equity depending on role and level

Kubernetes

Python

Scala

Senior and Expert level

Paris

More information about location

1001+ employees

B2BMarketingAdvertisingData Analysis

Company mission

To help marketers and media owners reach their goals through the world's leading Commerce Media Platform.

Job

Company

Role

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

What the job involves

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
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
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..

Our take

Commerce marketing is a huge business with billions spent every year on adverts. And companies that help businesses create and deliver more targeted adverts can command a lot of value. Criteo is one such company operating in this space.

Criteo is a personalised retargeting company connecting marketers and media owners through its Commerce Media Platform, delivering richer consumer experiences. Criteo uses machine-learning technology and data to drive performance, helping marketers and media owners reach their goals.

As marketers are increasingly looking for commerce media solutions, Criteo is operating in a sought-after space. Further, around 73% of media owners seek to optimise media performance as a way to both generate awareness and drive revenue, meaning the company has a significant potential client base. Criteo has continued to make headway here, driving 5 billion ads per day, and is well set to see further adoption of its platform.

Kirsty

Company Specialist at Welcome to the Jungle

Insights

Top investors

6% employee growth in 12 months

Glassdoor (4.2)

Trustpilot (2)

Company

Funding (last 2 of 4 rounds)

Sep 2012

$38.6m

SERIES D

May 2010

$7m

SERIES C

Total funding: $59.5m

Company HQ

New Athens, Paris, France

Leadership

Michael Komasinski

(CEO)

Prior to joining Criteo in 2025, Michale was the CEO of the America and Group President of Data and Technology at dentsu. He also spent nearly 9 years at Merkle, in various roles, including President of the Americas and Global CEO.

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