Junior Distributed Storage Engineer

Junior Distributed Storage Engineer

Geneva, Switzerland IT-SD-PDS-2026-246-GRAE Ideal start date: 01/01/2027

Before 06/11/2026 at 23:59 (Geneva Time)

What you'll do

Work with us to evolve the CERN data storage systems used at the Large Hadron Collider (LHC).

Join the CERN IT Storage and Data Management Group and work with us on services and technology which enables scientific progress at CERN!

You will be part of the EOS Storage Development and Operations team, delivering large-scale, reliable, high-performance storage services. Today, our infrastructure manages more than 1 Exabyte of disk storage and serves around 10 Exabytes of data annually to researchers and computing facilities worldwide.

In this role, you will have an opportunity to learn, contribute and gain experience in operations and evolution of innovative, open-source storage platform. You will also work closely with developers and service managers to improve automation, observability, reliability and performance of CERN’s storage services.

Your responsibilities

• Operate and maintain EOS large-scale distributed storage services supporting CERN's scientific programmes.
• Integrate, troubleshoot and optimise distributed storage systems at exabyte scale across software, hardware and network layers.
• Contribute to the development, testing, deployment and automation of EOS platform capabilities and operational tools.
• Liaise with users, developers, service managers and external collaborators to support the evolution of CERN storage services.

Still here? Let's make a quick check about

Your profile

• Experience and good knowledge of Linux, networking and storage technologies.
• Interest in distributed storage systems, data management platforms and large-scale scientific computing.
• Interest in storage performance, scalability and reliability challenges.
• Understanding of concepts such as replication, fault tolerance, caching, scheduling and data consistency.
• Your studies focused on Software Engineering.

Your skills

• Software development and knowledge of modern programming languages (e.g. C++, Python, Git, CI/CD).
• Linux administration, troubleshooting and performance optimisation.
• Automation, configuration and operational tooling.
• Collaboration skills and working in diverse teams.
• Spoken and written English, with a commitment to learn French.

Ideal start date: 01/01/2027

Contract duration (in months): 24

Job flexibility: Fully Onsite

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!

Ready To apply?

Be prepared with our resources and tips

• Our Hiring Process
• Life at CERN
• Tips for your Application
• Working at CERN
• What happens after you apply?
• More about CERN

All good?

Apply now Allow 15 minutes to complete your online application

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.