Mechanical Technician; BE-EA-DC--LD

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.

You will participate in interventions and troubleshooting mechanical issues and coordinating maintenance, installation and logistics activities initially during our next long shutdown to keep CERN’s fixed target areas and associated beam‑line facilities running safely and efficiently.

• Take part in the maintenance, installation, and improvement of mechanical systems in experimental and beam‑line areas. Participate in fault‑finding and elaborating repair solutions together with engineers and other team members. Contribute to assembling, testing, installing and commissioning of beam‑line mechanical components (e.g. collimators, intercepting devices, supports). Support procurement and production follow‑up activities, ensuring good coordination with suppliers and contractors. Assist in the design and assembly of mechanical supports for experimental setups.
  
  Organise and carry out logistical tasks such as preparing shielding blocks, managing storage, transport coordination, and keeping inventories up to date.
• Actively participate in hands‑on mechanical work, including interventions on detector systems when needed.

Higher technical diploma or equivalent relevant experience in the field of Mechanical or Electromechanical engineering or a related field.

• Mechanical maintenance, installation, logistic and supervision of technical systems within multidisciplinary teams. Working with high‑precision mechanical devices and instrumentation. Coordinating technical interventions while ensuring strict compliance with safety standards. Assembly, testing, and optimisation of mechanical systems. Documenting technical interventions and maintenance activities.
• The use of Microsoft Office®, GANTT (Microsoft Project®), and CATIA® 3D CAD software will be considered an asset.

• Design and analysis of mechanical structures. Construction, test and installation of electromechanical equipment and systems. Knowledge and application of manufacturing methods and work preparation. Organisation, planning and control including the coordination of technical work.
• Knowledge of design codes and compliance verification of mechanical equipment.

• Working in Teams: building and maintaining constructive and effective work relationships. Managing Self: taking initiative beyond regular tasks and making things happen. Demonstrating Flexibility: being willing to work on different projects simultaneously. Solving Problems: producing workable and timely solutions that meet requirements.
• Communicating Effectively: ensuring that information, procedures and decisions are appropriately documented.

Spoken and written English or French, with a commitment to learn the other language.

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. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible, and applications should normally reach us no later than 14.01.2026 at 23:59 CET.

Contract type:
Limited duration contract (5 years). Subject to certain conditions, holders of limited‑duration contracts may apply for an indefinite position.

Working Hours:

40 hours per week

Job Flexibility:
Fully Onsite

This position involves:

• Work in Radiation Areas. Interventions in underground installations. A valid driving licence.
• Work during nights, Sundays and official holidays, when required by the needs of the Organisation.

Job grade: 3-4

Jo…