Job Description

Your responsibilities

We are seeking a motivated Mechanical Engineer to join the CMS Engineering and Integration Office. This role focuses on the design, integration, and coordination of detector services, contributing to the advancement of cutting-edge experimental facilities. Key Responsibilities:

• Infrastructure Upgrade:
  • Oversee the design, procurement, installation, and commissioning of new detector services, including: Cooling systems, particularly low-temperature CO2 fluids Readout optical fibers and slow controls
  • Manage the construction and validation of a full-scale (1:1) mock-up to verify CAD integration models in critical areas.
• Coordination & Site Management:
  • Collaborate with the CMS Technical Coordination team to oversee on-site installation of new services.
  • Collaborate the decommissioning of legacy services in accordance with the CMS Decommissioning Plan, ensuring the removal of approximately 500m³ of outdated infrastructure from underground caverns.

Your profile

Skills

• Proven experience in integrating complex systems, such as HEP detectors or equipment with similar complexity.
• Experience in thermal and structural calculations of mechanical structures using finite-element analysis methods (experience with ANSYS is a plus).
• Proficiency in 3D CAD tools (preferably CATIA) for designing mechanical assemblies, including prototype assembly, and validating manufacturing and installation processes.
• Capability to lead the design, construction, and exploitation of services mock-ups.
• Basic experience in drafting technical specifications and procurement, and overseeing the fabrication and installation of mechanical systems or detector infrastructure.
• Strong teamwork and collaboration skills.
• Excellent communication abilities to effectively coordinate with multidisciplinary teams.
• Fluent in English, the ability to work in French would be an advantage.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• By the application deadline, you have a maximum of two years of professional experience since graduation in Mechanical engineering (or a related field) and your highest educational qualification is either a Bachelor’s or Master’s degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Additional Information

Job closing date: 27.03.2025 at 23:59 hrs CET.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Target start date: 01-May-2025

This position involves:

• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.
• Exposure to ionizing radiation and classified as category A.
• Use of certain mobile work equipment or equipment used for lifting loads (lifting equipment, bridge cranes, aerial work platforms, etc.) requiring a driving authorization.
• Exposure to electromagnetic fields under certain exposure conditions.

Job reference: EP-CMX-SCI-2025-23-GRAE

Field of work: Mechanical Engineering

What we offer

• A monthly stipend ranging between 5196 and 5716 Swiss Francs (net of tax).
• Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
• 30 days of paid leave per year.
• On-the-job and formal training at CERN as well as in-house language courses for English and/or French.

About us

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world’s largest and most complex scientific instruments, they study the basic constituents of matter – fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on http://home.cern.

Diversity has been an integral part of CERN’s mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.