Titre du poste
Survey Engineer (BE-GM-ASG-2023-22-GRAP)

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.


The Beams Department is at the heart of the CERN accelerator complex and plays a key role in providing the world-class scientific instrument needed by the Physics community. Amongst other things, we are responsible for the construction and installation of key components, exploitation of the whole complex and technical infrastructure.


The Geodetic Metrology group https://be-dep-gm.web.cern.ch/ provides metrology and alignment for all components installed in the accelerators, their beam transfer lines and the physics experiments throughout the CERN complex and handles the geodetic reference aspects of the CERN reference systems.


The ASG (Accelerator Survey & Geodetic measurements) section is responsible for the geodetic and large-scale metrology measurements as well as the alignment of the accelerator components and their associated beam transfer lines for the whole CERN site. Furthermore, the ASG section is in charge of the acquisition and processing of high-accuracy point cloud data defined in the primary CERN reference frame (CCS).


As a survey engineer in the BE-GM-ASG section, you will :

  • Be responsible of the alignment of SPS complex components and ensure the maintenance of the related geodetic networks,
  • Define, prepare and perform high accuracy survey activities of using total station and CERN specific equipment and supervise the realisations of the ‘field’ teams (including contractors),
  • Take the responsibility for the data processing using a 3D least squares adjustment application,
  • Supervise and perform metrology measurements at all stages during assembly of accelerator components using laser trackers,
  • Perform "as built" measurements of tunnels and buildings using the laser scanner technology,
  • Contribute to interfaces with the layout and survey database in preparation of the new installations and alignment campaigns in LS3,
  • Ensure data consistency between different database by comparing information from different sources,
  • Be involved in the testing process of the survey software developed at CERN.

The skills and/or technical competencies you should have and/or know: 

  • Experience in applying precision survey methods and tools (sub-millimetric) : total stations, optical/digital levels, laser tracker;
  • Experience in standard compensation software: theories, concepts and algorithms related to the least square adjustment.
  • Working in teams : works well in groups and readily fits into a team; participates fully and takes an active role in team activities
  • Solving problems : identifies, defines and assesses problems, takes action to produces workable and timely solutions that meet requirements.
  • Learning and sharing knowledge : willingness to learn and shares knowledge with others;
  • Knowledge of Oracle PL SQL with structured query language to manipulate data would be an asset;
  • Initial experience in reading and interpreting mechanical drawings would be an asset;
  • 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.
  • You have a professional background in Survey engineer (or a related field) and have either:
    • a Master's degree with 2 to 6 years of post-graduation professional experience;
    • or a PhD with no more than 3 years of post-graduation professional experience.
  • You have never had a fellow or graduate contract before.
Avantages du poste

Employment Conditions

Type de poste
Temps plein
Durée du contrat
24-36 months max
Lieu du poste
Date de publication
21 juin 2023
Valide jusqu’au
22 janvier 2024
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