Senior Software Engineer, Criteo
Data Infrastructure & Reliability
The commerce media platform for the open internet
Open for applications
The commerce media platform for the open internet
1001+ employees
Open for applications
1001+ employees
Company mission
To help marketers and media owners reach their goals through the world's leading Commerce Media Platform.
Role
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
What the job involves
- The Platform Core group, composed of six agile and human-sized teams, provides the core platform and systems to run Criteo products
- 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
- As a Senior Software Engineer​ - 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
- 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
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
6% employee growth in 12 months
Company
Funding (last 2 of 4 rounds)
Sep 2012
$38.6m
SERIES D
May 2010
$7m
SERIES C
Total funding: $59.6m
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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