Mechanical Engineer

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

• It is known for its groundbreaking work in the field of particle physics and is home to the world's largest particle accelerator, the Large Hadron Collider (LHC). CERN employs thousands of scientists, engineers, and support staff from over 100 countries, fostering a collaborative environment that encourages innovation and scientific discovery. The organization operates in multiple countries and is dedicated to pushing the frontiers of science and technology, making significant contributions to our understanding of the universe.

Job Overview:
The position of Mechanical Engineer at CERN involves joining a team of physicists and engineers focused on developing novel detector concepts for the Future Circular Collider (FCC-ee) physics program. The successful candidate will take on the role of the main developer for an electromagnetic calorimeter design, utilizing innovative technology developed in collaboration with various institutes. This role requires close interaction with physicists and engineers to understand the design's key performance metrics, as well as the integration constraints related to the experimental cavern and collider elements. The engineer will be responsible for developing and optimizing the detector geometry, creating detailed CAD models, and evaluating construction techniques to ensure that both physics performance and structural requirements are met. Additionally, the engineer will oversee the realization of a demonstrator to validate the design and selected technical solutions, making this a critical position in the advancement of particle physics research.

Duties and Responsibilities:

• Interact with physicists at CERN and collaborating institutes to understand the key figures of merit of the calorimeter design based on the proposed technology.
• Collaborate with CERN engineers and the FCC Machine-Detector Interface (MDI) group to comprehend integration constraints related to the experimental cavern and collider elements.
• Develop and optimize the detector geometry, producing sufficiently detailed CAD models in collaboration with the physicist responsible for detector performance simulations.
• Evaluate construction techniques for the calorimeter mechanical elements, ensuring compliance with both physics performance and structural requirements.
• Develop a concept for the overall supporting structure of the calorimeter and its integration within the overall detector mechanics, validating the concept through structural analysis.
• Oversee the realization of a demonstrator to validate the design and the selected technical solutions, ensuring that all aspects of the project are executed effectively and efficiently.

Required Qualifications:
Candidates must be nationals of a CERN Member or Associate Member State. By the application deadline, applicants should have a maximum of two years of professional experience since graduation in Mechanical Engineering or a related field. The highest educational qualification required is either a Bachelor's or Master's degree. It is important to note that applicants who have previously held a CERN fellow or graduate contract are not eligible, and those without a university degree or with a PhD are also not eligible for this position.

Educational Background:
The position requires a Bachelor's or Master's degree in Mechanical Engineering or a related field. This educational background is essential to ensure that the candidate possesses the necessary theoretical knowledge and practical skills to contribute effectively to the development of the electromagnetic calorimeter design and related projects.

Experience:
The ideal candidate should have a maximum of two years of professional experience since graduation. This experience should ideally be in a relevant field such as mechanical engineering, where the candidate has had the opportunity to apply their knowledge in practical settings, particularly in areas related to mechanical design and CAD software.

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

Additional Notes:
The contract duration for this position is 24 months, with the possibility of extension up to a maximum of 36 months. The job offers hybrid flexibility, allowing for a combination of on-site and remote work. The target start date for this position is April 1, 202

• The job reference is EP-FCC-2026-51-GRAE, and it falls under the field of Mechanical Engineering. The benchmark job classification is 200090 - Mechanical Engineer. 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 comprehensive health insurance, family allowances, and a relocation package depending on individual circumstances. On-the-job and formal training opportunities, including language classes, are also provided.