Mechanical Technician

Job Posting Organization:
CERN, the European Organization for Nuclear Research, is a leading scientific research institution established in 195

• It is located in Geneva, Switzerland, and is known for its groundbreaking work in particle physics. CERN employs over 2,500 staff members and collaborates with thousands of scientists from around the world. The organization operates in multiple countries, with a mission to explore the fundamental structure of the universe through advanced scientific instruments and research.

Job Overview:
As a Mechanical Technician at CERN, you will play a crucial role in the upgrade projects of the CMS detector, which is one of the largest and most complex scientific instruments in the world. Your responsibilities will encompass a wide range of mechanical tasks, including workshop-based work, installation of detector systems, and the design and use of specialized tooling for the removal and installation of CMS sub-detectors. You will also be involved in radioprotection duties in experimental areas and associated laboratories, ensuring safety and compliance with regulations. This position requires close collaboration with the CMS Technical coordination-team" style="border-bottom: 1px dotted #007bff !important;">Coordination team, sub-detector groups, and technical support teams, making effective communication and teamwork essential. Your contributions will directly impact the success of the CMS project and the advancement of particle physics research.

Duties and Responsibilities:

• Ensure safety and radioprotection during sub-detector removal and installation, collaborating with CMS safety officers and sub-detector teams in classified areas.
• Manage a mechanical workshop, providing guidance and support to CMS sub-detector teams, ensuring the availability and proper use of equipment and tools, and supplying necessary consumables.
• Offer technical support and hands-on assistance to CMS sub-detector project teams in mechanical manufacturing, assembly, structures, and welding.
• Participate in the development, testing, installation, and operation of custom tooling for sub-detectors, working closely with technical teams.
• Operate and maintain hydraulic, mechanical, and electromechanical systems.
• Organize and supervise the storage of sub-detector equipment, ensuring proper inventory and space management.
• Assist the territorial safety officer in supervising work on infrastructure for general safety, utilizing mobile cranes and forklifts as needed.
• Serve as the technical contact for mechanical activities with sub-detector teams and report regularly to Technical Coordination managers.

Required Qualifications:
Candidates must possess a higher technical diploma or equivalent relevant experience in Mechanics, Manufacturing Methods, or a related field. Additional training or certifications such as welding certificates, radioprotection formal training, and hydraulic certificates are considered advantageous. Strong organizational skills and the ability to manage a mechanical workshop effectively are essential. Proficiency in reading and producing 2D and 3D technical drawings is required, along with a solid background in the design, construction, and assembly of mechanical components and customized tooling. Experience in the installation of structures and the use of specialized tooling for handling large equipment is also necessary.

Educational Background:
A higher technical diploma or equivalent in Mechanics, Manufacturing Methods, or a related field is required for this position. Candidates with additional certifications in welding, radioprotection, or hydraulics will have an advantage in the selection process.

Experience:
Candidates should have experience in radioprotection and the ability to work in classified areas. Proven experience in managing a mechanical workshop, including the use of standard machines and tools, is essential. Strong organizational skills for coordinating teamwork and on-site technical activities are required. Proficiency in reading 2D and 3D technical drawings and experience in producing such drawings are also important. A solid background in the design, construction, and assembly of mechanical components and customized tooling is necessary, along with experience in the installation of structures and the use of specialized tooling for handling large equipment.

Languages:
Fluency in spoken and written English is mandatory, with a commitment to learn French being a valuable asset for this position. Effective communication skills in both languages will enhance collaboration within the diverse teams at CERN.

Additional Notes:
This position is a limited duration contract for 5 years, with the possibility of extension up to 8 years and eligibility for an indefinite contract tenure. The working hours are 40 hours per week, and the role is fully onsite. The position involves work in radiation areas, interventions in underground installations, and may require night, weekend, and holiday shifts based on organizational needs. A valid driving license is required, and candidates must obtain medical clearance due to occupational health risks associated with the position. The job grade is 3-4, and the reference for this position is EP-CMS-IC-2026-97-LD.