Mechanical Engineer - CMS Innermost Region, Switzerland

Ideal start date: 01/10/2026 Contract duration (in months): 48 Grade range: 6 Benchmark job: 200090 - Mechanical Engineer Job flexibility: Fully Onsite Team supervision

What you'll do: You will play a key role in the design, prototyping, construction, and integration of the mechanical structures and services for the innermost region of the CMS detector at CERN. This includes beam-pipe support structures, tracker bulkheads, beam-luminosity and beam-background monitors, and their associated services. The work will culminate in the equipment installation and commissioning at the end of the Long Shutdown 3 of the LHC.

Your responsibilities:

• Prepare 3D models and technical drawings and perform thermo-mechanical analyses of complex mechanical components and assemblies.

• Contribute to component procurement and oversee fabrication of mechanical parts, including related quality assurance.

• Lead and supervise the assembly of mock-ups, prototypes, and final versions of support structures for the CMS innermost region.

• Assist with the integration and testing of the Inner Tracker and Luminosity Monitors at CERN.

• Support and supervise colleagues from collaborating institutes participating in integration activities at CERN.

Your profile:

• Proven experience in design of complex mechanical components and assemblies using 3D CAD tools.

• Experience with structural and thermal simulations using finite-element analysis.

• Experience in construction, assembly, and quality control of mechanical systems.

• Demonstrated ability to work effectively within a multidisciplinary team, establishing and maintaining constructive and effective working relationships with a diverse range of colleagues.

• Master's Degree or equivalent relevant experience in the field of Mechanical Engineering or a related field.

Your skills:

• Design and analysis of mechanical structures.
• Production of 2D drawings and 3D models.
• Knowledge and application of numerical modelling in solid mechanics.
• Manufacturing of mechanical parts.
• Builds and maintains constructive and effective work relationships.
• Shares knowledge and expertise freely and willingly with others; coaches others to ensure knowledge transfer.
• Creates a common mind-set and promotes team spirit.
• Spoken and written English, with a commitment to learn French.

Employment conditions:

• A valid driving licence.
• Shift work, when required by the needs of the Organization.
• Work in Radiation Areas.
• Interventions in underground installations.
• Work during nights, Sundays and official holidays, when required by the needs of the Organization.

For full job description and application process please visit the following website: https://careers.cern/jobs/mechanical-engineer-cms-innermost-region/