Mechanical Engineer for the CMS High-Granularity Calorimeter

As a Mechanical Engineer, you will contribute to the development, procurement, assembly, testing and installation of innovative mechanical structures for the High Granularity Calorimeter (HGCAL) of the Compact Muon Solenoid experiment, working with advanced materials and challenging structural and thermal requirements. You will help oversee the surface assembly and testing of the 250-tonne detector, including its cooling, dry gas, cabling and fibre services, as well as its installation and commissioning 100 metres underground.

Responsibilities

• Coordinate a team of technicians in assembling and testing the steel structures of HGCAL, comprising more than 200 tonnes of steel plates per endcap.
• Provide engineering support for all activities at CERN related to the large-scale active detector components, known as “cassettes” (30–60-degree segments of circular structures with diameters of up to 5 m).
• Include the cold testing of “electromagnetic cassettes” and their subsequent stacking with lead plates to form the complete electromagnetic endcaps.
• Integrate the hadronic cassettes into the steel structures and provide support for their testing.
• Integrate the electromagnetic (30 tonnes) and hadronic (200 tonnes) sections, including their cabling and piping, and support subsequent large-scale testing on the surface.
• Help oversee the lowering of the HGCAL endcaps into the CMS cavern and their connection to CMS, including the connection and testing of services.

Requirements

• Master's Degree or equivalent relevant experience in the field of Mechanical Engineering or a related field.
• Strong track record in planning and coordinating the handling, assembling and testing of large mechanical structures.
• Demonstrated experience in performing thermal and structural calculations of complex mechanical structures using finite element analysis.
• Demonstrated experience in developing mechanical assemblies using 3D CAD.
• Ability to work successfully and efficiently within multinational, multicultural teams would be an advantage.
• Knowledge of usual manufacturing methods (milling, turning, etc.), assembly methods (bolted, welding, etc.).
• Knowledge and application of mechanical measurement techniques: including quality control methods.
• Capability to develop and validate manufacturing and installation methods for assembly and integration of detectors.
• Proficiency in Catia V5 or equivalent 3D modelling software, good knowledge of drawing annotations.
• Knowledge and application of numerical modelling applied to mechanics.
• Proficiency in ANSYS would be a strong asset.
• Basic understanding of process engineering systems (i.e. cooling plants) would be an asset.
• A valid driving licence.
• Willingness to work in Radiation Areas.
• Willingness to perform interventions in underground installations.
• Availability to work during nights, Sundays and official holidays, when required by the needs of the Organization.

Skills

• Mechanical Engineering
• Thermal Calculations
• Structural Calculations
• Finite Element Analysis
• 3D CAD
• Mechanical assemblies
• Manufacturing methods
• Assembly Methods
• Mechanical Measurement Techniques
• Quality Control Methods
• Manufacturing Validation
• Installation Methods
• CATIA V5
• Drawing Annotations
• Numerical Modelling
• Ansys
• Process Engineering Systems
• Cooling Systems Knowledge
• Surface Assembly
• Testing of Mechanical Structures

Languages

English, French