Mechanical Manufacturing Engineer

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

• It is located in Geneva, Switzerland, and is known for its groundbreaking work in the field of 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, primarily focusing on advancing scientific knowledge and technology through innovative research and collaboration.

Job Overview:
The Mechanical Manufacturing Engineer position is situated within the Mechanical and Materials Engineering (MME) Group at CERN, which has over 40 years of expertise in mechanical design, manufacturing, and assembly of accelerator and detector devices. The role involves the fabrication of complex components using advanced technologies such as machining, forming, and welding. The engineer will work closely with a multidisciplinary team to develop equipment and components for various research and development projects, particularly in preparation for the next Long Shutdown (LS3) of the accelerator complex. This position offers a unique opportunity to engage with industrial partners and gain exposure to diverse manufacturing environments, as it includes visits to suppliers in CERN Member States.

Duties and Responsibilities:
The Mechanical Manufacturing Engineer will be responsible for collaborating with project stakeholders, including project engineers, designers, and draftsmen, to contribute to the design-for-manufacturing phase. Key duties include reviewing and revising 2D drawings with a focus on geometrical dimensioning and tolerancing, defining make-or-buy strategies, preparing technical specifications and documentation for tenders, and fabricating schedules in coordination with relevant stakeholders. The engineer will also lead preparatory activities for fabrication, manage subcontracted production, and ensure quality assurance and control aspects are integrated into the manufacturing process.

Required Qualifications:
Candidates must possess proficiency in reading and interpreting 2D drawings and 3D CAD models, with a strong understanding of manufacturing methods and work preparation. Familiarity with precision assembly of mechanical structures and experience in working with materials such as stainless steels, aluminum, and copper alloys are essential. Additionally, candidates should have experience in writing technical specifications and fabrication reports, as well as knowledge of geometrical dimensioning and tolerancing (ISO GPS standard), CNC machining techniques, and CAD/CAM tools. Knowledge of pressure vessels, cryogenic devices, vacuum chambers, and mechanical structures is considered an asset, along with joining techniques such as welding, brazing, and soldering.

Educational Background:
The ideal candidate should have a professional background in Mechanical Engineering or a related field. A Master's degree with 2 to 6 years of post-graduation professional experience is required, or a PhD with no more than 3 years of post-graduation professional experience. Candidates must also be nationals of a CERN Member or Associate Member State and should not have previously held a CERN fellow or graduate contract.

Experience:
Candidates should have a minimum of 2 years of relevant professional experience post-graduation if holding a Master's degree, or up to 3 years if holding a PhD. Experience in mechanical engineering, particularly in manufacturing processes and project collaboration, is crucial for success in this role.

Languages:
Fluency in spoken and written English is mandatory, and candidates should demonstrate a commitment to learning French, which is considered beneficial for the role.

Additional Notes:
The position is fully onsite with a contract duration of 24 months, with the possibility of extension up to a maximum of 36 months. The working hours are set at 40 hours per week, and the target start date is July 1, 202

• The job reference for this position is EN-MME-FS-2026-81-GRAP. The compensation includes a monthly stipend ranging from 6372 to 7004 Swiss Francs, which is tax-free, along with 30 days of paid leave per year, comprehensive health insurance coverage, and a relocation package depending on individual circumstances. On-the-job training and formal training, including language classes, will also be provided.