DevOps Engineer for Large Scale Compute

What you'll do

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, OpenStack 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 OpenVox components.
Contribute to the development and maintenance of Terraform/OpenTofu modules used to provision and configure the supporting infrastructure.
Improve the quality of the configuration code through testing, validation, code review and standardisation.

Still here? Let's make a quick check about

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.
Your studies focused on Computer Science.

Your skills

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 OpenTofu 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.

Ideal start date: 01/12/2026

Contract duration (in months): 24

Job flexibility: Hybrid

Employment conditions

Stand-by duty, when required by the needs of the Organization.
Work during nights, Sundays and official holidays, when required by the needs of the Organization.

Global Benefits at CERN

A monthly net stipend of either 5266 or 5793 Swiss Francs per month depending on your degree.
30 days of paid leave per year plus 2 weeks annual closure.
Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
Family, child and infant monthly allowances depending on your individual circumstances.
A relocation package (installation grant and travel expenses) depending on your individual circumstances.
Possibility to extend your contract up to 36 months.
On-the-job and formal training including language classes.

Let's get you ready

Be sure to meet the eligibility criteria

You are a national of a CERN Member State or Associate Member State. Currently, we cannot consider applications from Pakistani, Lithuanian, Latvian, Cypriot, Croatian and Turkish nationals, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
By the application deadline, you have a maximum of 2 years of professional experience since graduation in the respective field and your highest educational qualification is either a bachelor’s or master’s degree. You must have a university degree and can’t hold a PhD.
You have never had a CERN fellow or graduate contract before.
Please pay attention to the additional criteria and requirements for this specific position and mentioned above.

You will need these documents to complete your application

Your CV (English or French)
A copy of your most relevant diploma or a certificate of achievement from your school (if you don't yet have your paper diploma)
Any document you consider relevant to your application

Your CERNDepartment

The IT Department designs, operates, and evolves CERN’s core computing and digital infrastructure. It provides the large-scale data processing, storage, networking, and collaboration services that enable CERN’s scientific programme. The Department supports the LHC and non-LHC experiments, accelerator systems, and the wider CERN community, while advancing new computing technologies through research, development, and strategic partnerships.

Overview of CERN

Discover a world where the impossible is made possible!

At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive.

Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success.

If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!

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Still have a doubt ? Here are the most frequently asked questions

What should I expect during my first week at CERN?

Your onboarding at CERN includes a comprehensive induction programme, which starts with an official welcome session at the beginning of each month. In addition, you will receive important information both before and after your arrival to ensure a smooth transition into your new role. This process is designed to help you get acquainted with CERN’s environment, your team, and the tools and systems you’ll be using.
How big would the team be?

The size of the team you'll be working with at CERN depends on the specific role and department. Some teams are small and highly specialized, while others are larger and more interdisciplinary. During the interview process, you'll have the opportunity to learn more about the team structure for the position you are applying for.
What is the working language at CERN?

The working languages at CERN are English and French. However, it is not always mandatory to speak both languages to work at CERN. We offer language training to help you acquiring the other language.
What support does CERN provide for relocation?

CERN does not offer direct assistance with relocation. However, depending on your role and specific criteria, you may be eligible for certain benefits such as an installation allowance and coverage of travel expenses to join CERN. These benefits are designed to help ease the transition when relocating to the Geneva area. For more information, please consult the “Salary, Benefits and Support“ page.
Do I need a visa to work at CERN?

Whether you need a visa to work at CERN depends on your nationality and the duration of your stay. CERN assists with the necessary visa and work permit processes for its employees and visitors. The specific requirements will be communicated to you during the recruitment process.
What would my salary be?

Salaries at CERN are determined by a structured scale. Salaries are based on your role, qualifications, and experience, and are not subject to negotiation. Specific details will be provided as your application progresses. For more information, please refer to the dedicated page.