DevOps Engineer Scale Compute; IT-CD-CC--GRAE

Dev Ops Engineer for Large Scale Compute (IT-CD-CC--GRAE)

• Full-time
• Compensation: CHF 5,266 - CHF 5,793 - monthly

Join the team responsible for the High Throughput Compute systems at the heart of CERN's data processing!

Are you a recent graduate with an interest in large-scale computing, automation, and infrastructure technologies? Would you like to develop your skills while contributing to the evolution of the computing infrastructure supporting the High-Luminosity LHC?

As a member of the team responsible for the batch service and configuration management of IT services, you will have the opportunity to experience a varied role, from helping to automate the delivery of compute, to self healing infrastructure, to evolving the toolset that the IT department uses to manage its services.

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, machine-learning, Kubernetes, 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 focusing on services supporting the physics community. We run the compute facility that comprises approximately 20% of the WLCG, using tools such as Puppet, Open Stack and Kubernetes to manage batch systems running HTCondor, HPC systems running SLURM, and the support services keeping everything glued together.

If you enjoy solving complex technical challenges, contributing to open-source software, and working with infrastructure at scale, come join us!

Your responsibilities

• Help manage the fleet of 400k+ cores complete lifecycle from CI provisioning through automated and AI enhanced maintenance.
• Help keep us ahead of LLM enhanced security threats with monitoring.
• Suggest, test, and deploy configuration changes on a large scale to production.
• Contribute to the operation and maintenance of the current configuration management infrastructure, including Foreman, Puppet and Open Vox components.
• Contribute to the development and maintenance of Terraform/Open Tofu modules used to provision and configure the supporting infrastructure.
• Improve the quality of the configuration code through testing, validation, code review and standardisation.

Your profile

• Experience administering or working with Linux systems in a server or data centre environment.
• Experience writing scripts or applications for automation or system tasks.
• Experience with configuration management tools such as Puppet or Ansible is a plus.
• Experience with container technologies, CI/CD systems or Infrastructure-as-Code tools is a plus.
• Knowledge of Linux, programming or scripting languages such as Python or Go.
• Familiarity with git for distributed version control is highly desirable.
• Knowledge of configuration management tools such as Puppet or Ansible is desirable.
• Infrastructure as Code tools such as Terraform or Open Tofu would be a plus.
• Any knowledge of batch systems such as HTCondor, SLURM or kueue would be a plus.
• Spoken and written English, with a commitment to learn French.
• By the Final date to receive applications, you have a maximum of two years of professional experience since graduation in Computer Science (or a related field)
  and 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.

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

Working hours:

40 hours per week

Job flexibility:
Hybrid

This position involves:

• Stand-by duty, when…