Superconducting RF Mechanical Engineer

What you'll do

Join CERN’s Superconducting Radiofrequency (SRF) team and help design next-generation cryomodules for future particle accelerators, including the FCC-ee project, and you will work in a multidisciplinary environment developing advanced cryogenic and radiofrequency systems at the forefront of accelerator technology.

Your responsibilities

Participate, and gradually take up a lead role, in the cryomodule design and integration of the SRF cavities and associated systems, as well as the assembly processes, in clean-room and outside clean-room, and associated special tooling.
Work collaboratively with multidisciplinary teams at CERN and partner laboratories.
Take up lead of the cryogenic engineering activities, including thermal performance and safety considerations.
Ensure mechanical designs meet applicable safety and regulatory requirements, in particular for pressure vessels.
Coordinate design, prototyping and testing activities with engineering and technical teams.
Monitor progress and share results through reports and presentations.

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Your profile

Experience designing cryogenic mechanical systems is required.
Knowledge of heat transfer and structural analysis on cryogenic systems is required.
Experience with CAD tools (e.g. CATIA, Inventor, SolidWorks) and FEA software is required.
Experience with cryogenic systems or superconducting technologies is desired.
Familiarity with pressure vessel design and safety standards is desired.
Familiarity with cleanroom assembly requirements is desired.
Background in scientific instrumentation or large research projects is desired.
Master's degree or equivalent relevant experience in the field of Mechanical Engineering or a related field.

Your skills

Design and construction of cryostats.
Knowledge and application of cryogenic heat transfer and insulation techniques.
Design and analysis of mechanical structures.
Knowledge and application of RF techniques.
Works well in groups and readily fits into a team; participates fully and takes an active role in team activities.
Takes responsibility for own actions and decisions.
Takes initiative beyond regular tasks and makes things happen.
Thinks "out of the box" and proposes fresh ideas, insights and methodologies.
Adapts quickly and resourcefully to shifting priorities and requirements.
Spoken and written English, with a commitment to learn French.

Ideal start date: 01/09/2026

Contract duration (in months): 60

Grade range: 6

Benchmark job: 200090 - Mechanical Engineer

Job flexibility: Hybrid

Medical hazard

Exposure to electromagnetic fields under certain exposure conditions.

Given the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed.

Employment conditions

A valid driving licence.
Work in Radiation Areas.
Interventions in underground installations.
Participation in a regular stand-by duty, including nights, Sundays and official holidays.

Global Benefits at CERN

A minimum entry-salary of 9236 Swiss Francs per month (tax free), increasing in line with your years of relevant experience.
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, removal, travel expenses) depending on your individual circumstances.
Possibility to extend your contract up to 8 years + eligibility for indefinite contract tenure.

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 and Lithuanian nationals for positions with a 2026 start date, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
You have relevant qualifications and professional experience.
If you have previously held a Staff contract at CERN, you will not be eligible for these positions.
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

Your CERNDepartment

The SY department oversees the science and technology related to accelerator technical systems, including beam instrumentation, beam transfer, power converters, particles generation and their interaction with matter, and radio frequency systems. It is responsible for the operation, maintenance, and development of new hardware and software for CERN’s accelerator complex.

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.