Mechanical Engineer on Cryostats for Particle Accelerators

Geneva, Switzerland
27 Oct 2022
23 Jan 2023

Company Description

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization.

This is your Quest. Deepen your knowledge and expertise faster than anywhere else on earth. Take Part!

Job Description

You are a mechanical engineer interested in vacuum, cryogenics and electro-mechanical devices willing to contribute to CERN projects. You will integrate an international team working on the development and production of new superconducting transfer lines that will be installed in the LHC machine. The position covers:

  • Follow-up of supply contracts for the construction of the cryostats that will contain the high-current distribution lines connecting the magnet chain to the power supplies;
  • Engineering support to electro-mechanical assemblies and testing operations at cryogenic temperatures;
  • Production of technical documentation: manufacturing and inspection plans, procedures and  QC-QA reports;
  • Design, FEM computations, procurement and assembly of bespoke tooling to facilitate assembly work;
  • Integration study of the cryostats in the LHC tunnel: development of installation sequences taking account of interfaces with other systems based on various technologies, CAD modelling, tooling development and validation.

Link to the project : WP6A: Cold Powering | High Luminosity LHC Project (


Eligibility criteria:

  • You are a national of a CERN Member or Associate Member State;
  • You have a Master’s degree and between 2 and 6 years’ experience or PhD with up to 3 years of relevant experience in mechanical engineering or other related field;
  • You should have a working knowledge of English or French.

Skills and/or knowledge:

  • Mechanical design with FEM and CAD software;
  • Materials and structures;
  • Production of technical documentation;
  • Good communication skills in multi-cultural environment. 

Additional Information

What we offer:

  • An employment contract of in principle 24 months, with a possible extension up to 36 months;
  • On-the-job and formal training at CERN as well as in-house language courses for English and/or French;
  • A monthly stipend ranging between 6050 and 6650 Swiss Francs per month (net of tax);
  • Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund;
  • Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract;
  • 30 days of paid leave per year.

How to Apply:

You will need the following documents to complete your application:

  • A CV;
  • A scanned PDF of your most recent relevant qualification;
  • We recommend to add two recent letters of recommendation, giving an overview of your academic and/or professional achievements. You can upload these letters at the time of application if you have them to hand. You will also be provided with a link as soon as you have submitted your application to forward to your referees to upload their letters confidentially.

The earliest expected start date for selected candidates is May 2023.

Ready to take part? Then please submit your application by 23 January 2023 at  midnight (12.00 AM CEST). 

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