Mechanical 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 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, fostering an environment of innovation and collaboration among a diverse range of professionals from engineering, technical, scientific, and administrative fields. CERN's mission is to push the frontiers of science and technology, contributing to our understanding of the universe.

Job Overview:
The Mechanical Engineer position within the Mechanical and Materials Engineering (EN-MME) group at CERN is focused on the mechanical design and optimization of CO2 cooling transfer lines as part of the CMS detector upgrade. The role involves performing mechanical and thermo-mechanical analyses using finite element tools such as ANSYS, alongside structural and thermal calculations that comply with relevant standards. The engineer will be responsible for preparing comprehensive technical documentation throughout the project lifecycle and will participate in iterative design development to meet performance objectives and integration constraints. Collaboration with engineers, designers, and technicians across multiple domains is essential, as the engineer will contribute to fabrication-related decisions and support quality assurance activities. This position offers an exciting opportunity to work on cutting-edge projects in a multidisciplinary environment, where teamwork and communication skills are vital.

Duties and Responsibilities:

• Conduct mechanical and thermo-mechanical analyses using finite element analysis software, particularly ANSYS, to ensure the integrity and performance of designs.
• Perform structural and thermal calculations in compliance with relevant international standards.
• Prepare and maintain comprehensive technical documentation throughout the project lifecycle, ensuring clarity and compliance with project requirements.
• Engage in iterative design development processes to meet both performance objectives and integration constraints effectively.
• Collaborate closely with engineers, designers, and technicians from various disciplines to facilitate effective communication and decision-making regarding fabrication and quality assurance.
• Analyze and interpret simulation data to guide design decisions and improve project outcomes.
• Participate in team meetings and contribute to discussions regarding project progress and challenges.
• Support quality assurance activities to ensure that all engineering outputs meet the required standards and specifications.

Required Qualifications:

• Proven experience with finite element analysis software for thermal and structural simulations, particularly ANSYS.
• Familiarity with 3D CAD software, preferably CATIA, to assist in design processes.
• Knowledge of EN 13480 and other international design and safety standards for pressure vessels and mechanical components is advantageous.
• Strong analytical skills to interpret mechanical and thermo-mechanical simulation data effectively.
• Excellent problem-solving abilities and the capacity to work both independently and collaboratively within a team.
• Strong communication skills, both written and verbal, to document processes and share information with team members.
• A commitment to teamwork in a multidisciplinary environment, demonstrating flexibility and adaptability.

Educational Background:
Candidates must possess a Bachelor's or Master's degree in Mechanical Engineering or a related field. Applicants without a university degree are not eligible for this position, and those with a PhD are also not eligible. The educational background should provide a solid foundation in mechanical engineering principles and practices, particularly in areas relevant to the role.

Experience:
Applicants should have a maximum of two years of professional experience since graduation in Mechanical Engineering or a related field. This experience should ideally include work with finite element analysis and design processes relevant to mechanical engineering.

Languages:
Fluency in spoken and written English is mandatory, as it is the primary language of communication at CERN. Candidates should also demonstrate a commitment to learning French, which is beneficial for integration into the local community and workplace.

Additional Notes:
The position is fully onsite and offers 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. The target start date for this position is August 1, 202

• The job reference for this position is EN-MME-EM-2026-132-GRAE. Compensation includes a monthly stipend ranging from 5266 to 5793 Swiss Francs, which is tax-free, along with 30 days of paid leave per year and additional benefits such as health insurance coverage, family allowances, and a relocation package depending on individual circumstances.