Your responsibilities

The Mechanical and Materials Engineering (EN-MME) group, within the Engineering Department (EN), is seeking a Mechanical Engineer to perform general engineering studies and calculations for a broad spectrum of projects and systems throughout the organisation and the experiments.

You will be in charge of engineering calculations, required for the study, development and analysis of mechanical machines and systems. Examples of calculations include structural, thermal, multiphysics, shock and vibration simulations, as well as analytical computations. Such analyses will be related to one or more of the phases of a particle accelerator equipment lifetime: design, prototyping, testing, installation, operation, maintenance, disposal.

Examples of the projects, facilities and experiments that you will work for include:

• LHC main ring and extraction lines;
• LHC experiments and experimental areas;
• Injector complex and its experiments (NA, EA, ISOLDE, ...);
• Medical application systems;
• Long Shutdown 3 (LS3) engineering and fabrication.

You will collaborate closely with engineers, designers, and technicians across multiple domains, contributing to design and fabrication decisions, performing diagnostics studies of operational elements, and preparing comprehensive technical reports and presentations.

Your profile

Skills:

• Proven experience with finite element analysis software for thermal and structural simulations (e.g., ANSYS, COMSOL).
• Ability to analyse and interpret simulation data to guide design decisions and understand operational failure mechanisms.
• Understanding of the behaviour and design principles of ductile and brittle materials.
• Some initial experience with 3D CAD software (e.g. CATIA).
• Familiarity with International Standards dealing with the design and safety of structural and pressure equipment would be an asset.
• Attitude to teamwork in a multidisciplinary environment.
• Excellent communication and documentation skills.
• Spoken and written English, with a commitment to learn French.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• You have a professional background in Mechanical Engineering (or a related field) and have either:
• a Master's degree with 2 to 6 years of post-graduation professional experience;
• or a PhD with no more than 3 years of post-graduation professional experience.
• You have never had a CERN fellow or graduate contract before.

Additional Information

Job closing date: 17.08.2025 at 23:59 CEST.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Target start date: 01-January-2026 (with the possibility to start earlier)

Job reference: EN-MME-EDM-2025-116-GRAP

Field of work: Mechanical Engineering

What we offer

• A monthly stipend ranging between 6287 and 6911 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.
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

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 http://home.cern.

We are on a Quest. A Journey into discovery like no other. Bring your expertise to our unique work and develop your knowledge and skills at pace. Join world-class subject matter experts on unique projects, in a Quest for greater knowledge and deeper understanding.

Begin your CERN Quest. Take Part!

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.