Your responsibilities

Are you a talented DevOps Engineer who would like to come and help keep the services - that store, distribute, and analyse data generated by the Large Hadron Collider (LHC) - running ? The Worldwide LHC Computing Grid (WLCG) provides 1.4 million compute cores, 1.5 exabytes of storage from over 170 sites in 42 countries. This is distributed computing infrastructure on a global scale, and requires monitoring and full-stack testing in order to keep it running smoothly for the 12.000 physicists around the world who rely on it.

The Compute and Devices (CD) group in CERN IT provides a wide range of compute services, all the way from end user devices, through cloud infrastructure-as-a- Service, configuration management, batch and HPC computing at CERN, together with a set of services that support the whole WLCG.

As a member of the Compute and Configuration (CC) section of the CD group, you will join a team of engineers in charge of these services. We run the compute facility that comprises approximately 20% of the WLCG, using tools such as Puppet, OpenStack and Kubernetes to manage batch systems running HTCondor, HPC systems running SLURM, and the support services keeping everything glued together.

Your main functions will include:

• Running and helping to evolve and develop the web-based monitoring systems the "WLCG Experiments Test Framework (ETF)" and "HammerCloud" that are used to monitor and test grid sites around the world.
• Evaluate opportunities for common components to simplify the development and management of those systems.
• Work with partners in LHC experiments to enhance test coverage of WLCG sites.
• Evolve the deployment model of the applications to take advantage of modern Infrastructure-as-Code methods

Your profile

Skills and/or knowledge

• Strong knowledge of Python, Linux, Git Desirable: Django, Nagios, Puppet, Kubernetes
• Fluent in English, the ability to work in French would be an advantage.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• You have a maximum of two years of professional experience since graduation in Computer Science (or a related field) by the application deadline.
• Your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Job closing date: January 19 at 23:59 PM (midnight) CET.

Job reference: IT-CD-CC-2023-7-GRAE

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Target start date: 01-May-2024

Documents required to complete your application:

• A CV
• A scanned PDF of your most recent relevant qualification