Software Development Engineer in Barcelona


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Job Description

Our Infrastructure teams are designing and operating the overall capacity and connectivity supporting the Criteo platform. They are in charge of designing, planning, scaling and operating hardware, system, network and datacenter layers. Working on Criteo’s infrastructure is an opportunity to learn high-level capacity planning and participate in all areas of this specialty (projections, budgeting, monitoring, provisioning, decommissioning, automation). If you think about our scale (45 000 servers, 8 data centers, 5 000 network devices) code is everywhere (APIs, data modeling, event-driven workflows, kernel code optimizations...).

Criteo is seeking a Software Engineer to join Qapla, our Infrastructure Capacity Planning team. In a fast-growing environment, capacity planning is a critical mission to support our Hosting and Network engineers. Qapla team aims at projecting, budgeting and allocating the resources that will allow Criteo Infrastructure to scale up, open new datacenters and extend existing ones at an even greater pace.

Such an ambitious undertaking includes (not limited to):

  • Revisiting metrics exposition

  • Automating alerts

  • Assisting with projection analysis

  • Streamlining data flows

  • Data visualization

Who You Are:

Strong candidates’ qualifications

We are looking for talented developers who:

  • Know what it means to put code into production

  • Are proficient with at least two languages of different paradigm

  • Feel responsible for the successes and failures of his/her whole team

  • Communication skills in English

  • Strong teamwork ability


It would be even greater if you already had:

  • Prior knowledge about infrastructure and/or monitoring

  • Expertise with either Python or Javascript

  • Good intuition about UX-related matters

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.


About Criteo

  • Ad Tech

  • Public, IPO 2013

  •  Paris, France

  • 1000-5000

  • 2005

Criteo is a digital performance marketing company.

Measuring return on post-click sales, Criteo makes ROI transparent and easy to measure. Criteo has 1,700+ employees in 27 offices across the Americas, Europe and Asia-Pacific, serving 9,250+ advertisers worldwide and direct relationships with 11,000+ publishers. 

Unlike the vast majority of the market, Criteo claims it uses a transparent cost-per-click model and measures value purely on post-click sales. This demanding model is supported by sophisticated predictive technology. It processes a vast amount of rich purchase-intent data in real-time to identify buyers and deliver dynamically-created ads which are personalized for each consumer. 

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