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Senior Site Reliability Engineer - Network DC

Criteo / Paris / Engineering & Modelling
Job Overview

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 data center layers. Working on Criteos infrastructure is an opportunity to learn high-level network engineering and in all areas of this specialty (data centre fabric, traffic engineering, automation, monitoring, security). Its also an opportunity to develop your coding skills. If you think about our scale (45 000 servers, 8 data centres, 5 000 network devices) code is everywhere (APIs, data modelization, event-driven workflows, kernel code optimizations...).

What you will do

  • Improving design, functionalities, and interoperability of our in-house automation tool suite
  • Promoting the implementation of open-source network solutions and sharing our work with the community
  • Hardening our infrastructure security
  • Get involved in new projects such as SONIC OS installation and other exciting open-source projects
  • Fostering cross-team collaboration for continuous systems/networks improvement (with SREs)
  • Managing network capacity planning
  • Building of our new data centers and expanding their capacity

Who you are

  • Hands-on development experience
  • Adaptability to work in an Agile environment with DevOps culture
  • Curiosity towards new network and systems technologies to keep the continuous improvement of our infrastructure

Bonus skills

  • Experience with large-scale Python applications design
  • Experience with code versioning and collaboration tools such as Git and Gerrit
  • Experience with Infrastructure as Code tools like SaltStack (preferred), Ansible or Chef
  • Experience with large infrastructure automation projects
  • Large scale, distributed load balancing experience
  • Experience in designing, deploying, and maintaining BGP networks in large-scale carrier and/or data centre networks

What's in it for you?

  • Flexible working arrangements
  • Competitive compensation package
  • 35+ annual holidays days
  • Health insurance
  • Discounted transport and sports activities
  • Personalized relocation package if moving from abroad
  • Catered lunch and breakfast
  • Private nursery
  • Maternity and paternity leave
  • Annual cross teams hackathon
  • Internal mobility programs
  • Tailored educational resources

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Criteo Overview

Criteo is the global technology company powering the world’s marketers with trusted and impactful advertising. 2,800 Criteo team members partner with over 20,000 customers and thousands of publishers around the globe to deliver effective advertising across all channels, by applying advanced machine learning to unparalleled data sets. Criteo empowers companies of all sizes with the technology they need to better know and serve their customers.

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