Mechanical Design Engineer

Switzerland flag Geneva, Switzerland EN-MME-EDS-2025-236-LD Ideal start date: 01/01/2026
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Before 19/11/2025 at 23:59 (Geneva Time)

What you'll do

Join a multidisciplinary project team designing, fabricating and testing a new generation of components for the High-Luminosity Large Hadron Collider (HL-LHC).  

Be in charge of engineering studies and design of the new HL-LHC cryogenic distribution lines (QXL).  


Structural static and buckling computations, thermomechanical studies, design of pressure equipment, advanced materials and material modelling, cryogenics, ultra-high vacuum technology, sustainable design and manufacturing, safety, reliability, product lifecycle management are just a few of the keywords related to this position.


Your responsibilities

  • Be in charge of the mechanical engineering and design of components and equipment for accelerators, including technical drawings, for the Cryogenic Distribution Lines for the HL-LHC project. 
  • Perform state-of-the-art computations and simulations to dimension, analyse and optimize mechanical systems, components and their fabrication techniques, also reducing environmental impact and cost. 
  • Participate in a multi-technology project, in close interaction with other engineering teams and services, in particular CERN workshops, and taking part to product prototyping, tests, and diagnostics. 
  • Prepare and manage documentation such as presentations, technical reports, engineering specifications and calculation notes. 

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Your profile

  • Demonstrated experience in mechanical engineering and design according to industrial standards, manufacturing methods and assembly techniques within a design office in industry or research centres. 
  • Demonstrated experience with finite element computations and computer-aided design, including thermo-mechanical analyses. 
  • Experience with ANSYS finite element software package and CATIA CAD tool would be an asset. 
  • Initial experience in managing mechanical projects from conceptual design to testing, prototyping and manufacturing phases. 

Your skills

  • Design and analysis of mechanical structures: by finite-element and analytical methods.
  • Knowledge and application of numerical modelling in solid mechanics: including thermomechanical simulations, and advanced material modelling.
  • Knowledge and application of cryogenic heat transfer and insulation techniques: especially low-temperature material behaviour and related fabrication techniques.
  • Knowledge of design codes and compliance verification of mechanical equipment: including pressure vessels and piping systems.
Ideal start date: 01/01/2026
Contract duration: 36
Grade range: 6
Benchmark job: 200090 - Mechanical Engineer
Job flexibility: Fully Onsite

Employment conditions

  • Work in Radiation Areas.
  • A valid driving licence.
  • Shift work, 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 minimum entry-salary of 9113 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.
  • 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 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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