Mechanical Engineer for FCC-ee

What you'll do

The Mechanical and Materials Engineering (EN-MME) group, within the Engineering Department (EN), is looking for a Mechanical Engineer to follow-up the construction, planning, maintenance and upgrade of the FCC-ee arc half cell mock-up. The FCC-ee is one of the proposed new accelerators to be built at CERN in the coming years.

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Your responsibilities

You will support the FCC WP11 team with engineering calculations for the safe operation and upgrade of the mock-up, including static, modal, vibrational, and thermal analyses.
You will allocate roughly half of your time to calculation work and the other half to coordinating and following up on in-situ activities such as maintenance, upgrades, testing campaigns, and visits.
You will participate in regular project meetings, present your results, and actively contribute to project progress.
You will collaborate closely with the groups involved in the FCC-ee Pre-TDR study.
You will prepare reports and technical notes to document your work clearly and accurately.

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Your profile

Your studies focused on Mechanical Engineering or equivalent.

Your skills

You have proficiency in finite element analysis software for thermal and structural simulations (e.g., ANSYS, COMSOL).
You have a solid understanding of the behaviour and design principles of ductile and brittle materials. You have initial experience with 3D CAD software (e.g., CATIA).
You are familiar with international standards related to the design and safety of structural and pressure equipment (e.g., Eurocode, EN-13445), which would be an asset.
You are willing to participate in the definition, planning, and follow-up of on-site activities.
You can coordinate and manage weekly meetings, ensuring accurate tracking of minutes and actions.
You have a strong attitude toward teamwork in a multidisciplinary environment.
You are flexible and able to adapt to evolving project priorities.
You demonstrate excellent communication and documentation skills.
You have strong spoken and written English skills, with a commitment to learn French.

Ideal start date: 01/03/2026

Contract duration: 24 month contract

Job flexibility: N/D

Employment conditions

A valid driving licence.

Global Benefits at CERN

A monthly stipend between 5196-5716 Swiss Francs per month (tax free) 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.
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)
Any document you consider relevant to your application
A copy of your most relevant diploma or a certificate of achievement from your school (if you don't yet have your paper diploma)

Your CERNDepartment

The EN department provides essential engineering expertise and infrastructure systems for the design, operation, and maintenance of CERN's accelerator complex and experimental facilities.

It covers everything from mechanical engineering to infrastructure management, ensuring the smooth running of technical systems.

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.
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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.