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, representing more than 100 nationalities. The organization operates in multiple countries and is dedicated to understanding the fundamental structure of the universe through advanced scientific instruments and research.

Job Overview:
The Mechanical Technician position at CERN is designed for individuals who are passionate about hands-on engineering and thrive in a high-tech, precision-driven environment. The role is pivotal in the mechanical construction of beam transfer systems across the accelerator complex, contributing to some of the most advanced scientific projects globally. The technician will work primarily in an ultra-clean environment, collaborating with a diverse team to assemble and install magnets, infrastructure, Ultra High Vacuum (UHV) components, and other essential equipment for injection and extraction processes. The position is situated within the Kicker Design and Construction section of the Accelerator Beam Transfer Group, which encompasses various subdomains of mechanical and electrical engineering, allowing the technician to join a multidisciplinary team of experts. The technician will be part of the Accelerator Systems Department (SY), responsible for the technical systems related to beam operations in CERN's accelerators, engaging in ambitious research and development programs.

Duties and Responsibilities:
The Mechanical Technician will be responsible for all phases of the construction process for magnets operating under vacuum. This includes reviewing technical drawings, procuring and preparing components, defining tools, assembling components, conducting vacuum tests, and documenting processes. The technician will actively participate in upgrade studies and the consolidation of equipment to enhance performance and reliability. Additionally, the role involves fault-finding and developing repair solutions, including machining mechanical components. The technician will support clean room operations and gradually take on a key role after an initial learning period to gain in-depth knowledge of the equipment and methodologies. Collaboration with engineers and technicians is essential to produce high-quality magnet assemblies that meet UHV standards, and the technician will also be responsible for the installation and alignment of mechanical equipment across the entire accelerator complex.

Required Qualifications:
Candidates must possess a higher technical diploma or equivalent relevant experience in mechanics or a related field. Proven experience in mechanical assemblies of complex systems is essential, along with demonstrated skills in reading and understanding ISO-GPS dimensioning. Experience with Ultra High Vacuum (UHV) components and standards is required, as well as proficiency in traditional (non-CNC) machine tools such as milling and turning. Initial experience in planning and coordinating the fabrication and assembly of mechanical systems is also necessary. Technical competencies include knowledge and application of clean-room techniques, assembly of mechanical structures and equipment, knowledge of standard vacuum components and piping, and familiarity with leak detection techniques and equipment. Understanding materials, surface, and thermal treatments for UHV is also important.

Educational Background:
The position requires a higher technical diploma or equivalent relevant experience in the field of mechanics or a related discipline. This educational background is crucial for understanding the complexities of mechanical systems and their assembly, particularly in a high-tech environment like CERN.

Experience:
Candidates should have proven experience in mechanical assemblies of complex systems, demonstrating their ability to work with intricate mechanical components and systems. Experience in reading and understanding ISO-GPS dimensioning is necessary, along with familiarity with Ultra High Vacuum (UHV) components and standards. The role also requires experience with traditional machine tools, such as milling and turning, and initial experience in planning and coordinating the fabrication and assembly of mechanical systems.

Languages:
The position requires proficiency in spoken and written English or French, with a commitment to learn the other language. This bilingual requirement is essential for effective communication within the diverse team at CERN and for understanding technical documentation and procedures.

Additional Notes:
The position is a limited duration contract for 5 years, with the possibility of applying for an indefinite position subject to certain conditions. The working hours are set at 40 hours per week, and the role involves work in radiation areas and interventions in underground installations. A valid driving license is required, and the technician may need to work during nights, Sundays, and official holidays as required by the organization's needs. Due to the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed. The job grade is classified as 3-4, and the job reference is SY-ABT-KDC-2025-66-LDB, with the benchmark job title being Mechanical Technician.