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Mechanical Technician for Beam Intercepting Devices (TTE Programme)

Geneva (Switzerland)

  • Organization: CERN - European Organization for Nuclear Research
  • Location: Geneva (Switzerland)
  • Grade: Grade 3 - Technical or Administrative roles - Only open to Nationals of all CERN Member States and Associate Member States - Mid level
  • Occupational Groups:
    • Mechanics and Electronics (Engineering)
    • Project and Programme Management
    • Technology, Electronics and Mechanics
    • Physics and Mathematics
  • Closing Date: 2021-05-31

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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.

Job Description

Are you a technician looking for a challenging professional experience to further your career?  If so, joining CERN’s TTE programme may very well give you that challenge.  

The SY-STI-TCD (Accelerator Systems - Targets, Collimators and Dumps) section oversees the conceptual design, construction, operation, and maintenance of all beam-intercepting devices across CERN’s accelerator complex, including particle-producing targets, beam absorbers/dumps, collimators, beam stoppers, and slits. The STI group, which sits within the Accelerator Systems department, is also responsible for the technical coordination of related facilities such as the Neutron-Time-of-Flight (n_TOF) and the Antiproton Target (ADT) areas.

Equipment under the responsibility of the team need to safely absorb beams from extremely low energy (45 keV) up to extremely high energy (7 TeV), with kinetic energies up to 350 MJ and with average power reaching up to 400 kW.

As a  Mechanical Technician you will join the team in charge of the conception, technical design, assembly, installation, and maintenance of the beam intercepting devices (BIDs) managed by the TCD section. Depending on the project particularities you will:

  • Contribute to the conception, technical design, internal and external manufacturing, and assembly activities for new and upgraded components, such as spallation targets, stoppers, slits, internal and external beam dumps and experimental devices;
  • Participate in the routine maintenance and consolidation activities of equipment for the LHC accelerator complex, for the injector complex and/or for other facilities at CERN;
  • Provide mechanical and logistics support to the n_TOF and Experimental facilities in collaboration with the respective Technical Coordinators; tasks are associated to the daily operation, technical problem-solving, preparation of upgrades for the facility and for different experimental activities executed in the respective installation.



In order to qualify for a place on the programme you will need to meet the following requirements:

  • You are a national of a CERN Member State or Associate Member State (;
  • You have a Technical Diploma ( in the field of mechanics or equivalent, and no more than 4 years' relevant experience after finishing your diploma;
  • If you are currently studying, you are still eligible to apply, although you are expected to have obtained your qualification by the start of your appointment at CERN;
  • If you hold a BSc or MSc, you are not eligible. However you may be eligible for the Fellowship Programme.
  • You should have at least a working knowledge of English or French.

Additional Information

CERN would very much like to benefit from your expertise, commitment and passion.  In return, CERN will provide you with:

  • An employment contract of one year, renewable for a second year; 
  • On-the-job and formal training at CERN as well as in-house language courses for English and/or French;
  • A monthly stipend of 4565 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: an installation grant, family, child, and infant allowances as well as travel expenses to and from Geneva;
  • 2,5 days of paid leave per month.

Specific skills required for this job:

  •  Experience using CAD systems such as CATIA

  •  Machining, assembling, and testing of precision mechanics

  • Reading mechanical design drawings and specifications in terms of tolerance (ISO tolerancing system).

This is how you can apply. Here are few tips to start you off:

  • Be as specific as possible in the application fields “Education” and “Experience”.
  • We recommend you prepare your answers in Word or Notepad in advance, as once you start completing the application on Smartrecruiters, you have a limited time to submit it.
  • If you apply to more than one job, you will need to upload the documents for each application you submit.

Required documentation:

You will need the following documents, clearly labelled (e.g. “CV”, “Motivation letter”, “Academic transcript”, etc.) and in PDF format to complete your application:

  • A CV;
  • A scanned copy of your latest relevant qualification;
  • One reference letter (from a professor or previous employer) giving an overview of your academic and/or professional achievements. This should be as broad as possible.

Make sure you have all the documents needed to hand as you start your application, as once it is submitted, you will not be able to upload any documents or edit your application further. 
You may upload the reference letter yourself, whilst submitting your application, or through your referee via the link you will receive shortly after submitting your application.

All applications should normally reach us no later than 31.05.2021.

We do our best to provide you the most accurate info, but closing dates may be wrong on our site. Please check on the recruiting organization's page for the exact info. Candidates are responsible for complying with deadlines and are encouraged to submit applications well ahead.
Before applying, please make sure that you have read the requirements for the position and that you qualify.
Applications from non-qualifying applicants will most likely be discarded by the recruiting manager.

What does it mean?

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