Mechanical Designer (EP-LBO-DO-2024-69-LD)

Posted on


Other jobs

Reference Number


Show Contact Information


Company Description

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

Job Description


Are you a versatile mechanical designer with a passion for challenging projects in the field of particle physics experiments? Then seize this opportunity and join the LHCb design and integration office where you will contribute to future enhancements and upgrades of the LHCb detector!

LHCb ( is one of the four large experiments at the CERN Large Hadron Collider (LHC). The detector consists of several subsystems such as a high-precision (~10 m resolution) silicon detector operating in a secondary vacuum, a 1500-ton dipole magnet and a large-area (~ 6 m x 5 m), lightweight scintillating fibre detector, just to give a few examples. Its operation requires complex infrastructure in terms of support structures, electrical power, cooling and data acquisition.

Integration studies are pivotal to ensure that the different detector components and associated services come together as a coherent whole.


As a member of the LHCb Technical Coordination team (EP-LBO-DO section) you will collaborate closely with skilled engineers, technicians, and designers, both from CERN and from collaborating institutes.

More specifically, you will:

  • use CATIA V5 to prepare 3D models and 2D construction drawings (using ISO-GPS norms for dimensioning and tolerancing),
  • perform integration studies of infrastructure and detector systems to be installed in the LHCb experimental area,
  • carry out mechanical dimensioning of components using analytical or numerical methods,
  • prepare technical specifications and procure components,
  • follow up on and take part in the construction, quality control, assembly and installation of components you have designed,
  • update models and drawings and follow the evolution of the PLM (Product Lifecycle Management),
  • take part in installation and dismantling activities in the experimental area,
  • participate in the LHCb infrastructure and safety stand-by duty service.


Bachelor's degree or equivalent relevant experience in the field of mechanical engineering or a related field.


You shall have experience in:

  • preparing 3D models,
  • managing CAD assemblies,
  • preparing manufacturing drawings, according to ISO-GPS standards.

Experience in the following areas would be considered an asset:

  • Working with CATIA V5 and PLM (Product Lifecycle Management),
  • Working in multi-disciplinary teams,
  • Mechanical machining.

Technical competencies:

  • Integration of mechanical systems
  • Production of 2D drawings and 3D models
  • Design and analysis of mechanical structures
  • Knowledge of design codes and compliance verification of mechanical equipment
  • Knowledge and application of manufacturing methods and work preparation

Behavioural competencies:

  • Working in Teams: building and maintaining constructive and effective work relationships
  • Managing Self: working well autonomously; taking on activities and tasks without prompting Taking initiative beyond regular tasks and making things happen
  • Demonstrating Flexibility: being willing to work on different projects simultaneously
  • Solving Problems: producing workable and timely solutions that meet requirements
  • Learning and Sharing Knowledge: taking steps to expand knowledge in other areas of expertise beyond own field

Language skills:

Ability to understand and speak English in professional contexts and draw up technical specifications,
Knowledge of French or willingness to acquire it would be an asset.

Additional Information

Eligibility and closing date:

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. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible, and applications should normally reach us no later than 20.06.2024

Employment Conditions

Contract type: Limited duration contract (3 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

These functions require:

  • Participation in a regular stand-by duty, including nights, Sundays and official holidays.
  • Work in Radiation Areas.
  • Interventions in underground installations.
  • Work during nights, Sundays and official holidays, when required by the needs of the Organization.

Job grade: 4-5

Job reference: EP-LBO-DO-2024-69-LD

Benchmark Job Title: Mechanical Technical Engineer

More Information

Posted on


Other jobs

Reference Number


Show Contact Information



Geneva, GENEVA, CH

Genève , Switzerland