Jobs in GM

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.

Join the Geodetic Metrology group at CERN, where you will take part in the metrology and alignment of the wide variety of components that are used in particle accelerators and detectors. You will be using, developing or testing state-of-the art surveying tools and software to achieve the sub-millimetre accuracy necessary to achieve our goals. Take part!

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization.

Information about the BE-GM Group

Find more information about the group HERE and more about our activities: Video_surveyor at CERN, Video_Alignment systems

What we offer: 

Join one of the most unique organizations in the world! Explore the exciting opportunities in the Geodetic Metrology Group at CERN. We are constantly seeking students, trainees, graduates, and staff eager to contribute to our ground-breaking work. Here’s more about what we do: https://videos.cern.ch/record/2718427, https://videos.cern.ch/record/2298440

Survey Technician (BE-GM-ASG-2025-233-GRAE)

Your responsibilities:

  • Perform metrology measurements at all stages of the assembly of accelerator components using laser tracker technology.
  • Carry out the alignment of various components throughout the CERN complex.
  • Perform "as-built" measurements of tunnels and buildings using the laser scanner technology.
  • Take part in the in-house software test validation, provide feedback to improve the survey field procedures, methods and software.
  •  Perform the calibration, checking and testing of survey instrumentation and accessories.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-ASG-2025-233-GRAE

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Junior Survey Engineer (BE-GM-ASG-2025-234-GRAE)

Your responsibilities:

  • Perform metrology measurements at all stages of the assembly of accelerator components using laser tracker technology.
  • Carry out the alignment of various components throughout the CERN complex.
  • Perform "as-built" measurements of tunnels and buildings using the laser scanner technology.
  • Take part in the in-house software test validation, provide feedback to improve the survey field procedures, methods and software.
  • Perform the calibration, checking and testing of survey instrumentation and accessories.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-ASG-2025-234-GRAE

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Survey Engineer for LHC Experiments (BE-GM-ESA-2025-240-GRAE)

2 positions

Your responsibilities:

After several weeks of training, the person will be deeply involved in the survey and alignment of physics detectors and will:

  • Perform 3D measurements for the maintenance of our geodetic networks as well as for the geometrical follow-up of assemblies, adjustment and alignment of the detectors with respect to this network.
  • Participate in the organization and execution of measurements and in-field data capture.
  • Contribute to data processing, documentation of measurements and presentation of results in technical meetings.
  • Take part in the in-house software test validation, provide feedback to improve the survey field procedures, methods and software.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-ESA-2025-240-GRAE

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Survey Engineer (BE-GM-ESA-2025-189-GRAP)

Your responsibilities:

After several weeks of training, you will progressively take responsibility for the alignment of various detectors such as ATLAS, AMBER, SHIP, under the guidance of your supervisor. You will:

  • Implement geodetic infrastructure, i.e., the design with the aid of simulations, materialisation, and maintenance of geodetic networks in the experimental areas.
  • Carry out and supervise geometrical measurements at all stages of component production from assembly to installation in situ using standard geodetic 3D techniques including the use of close range photogrammetry and laser trackers.
  • Be responsible for data processing comprising advanced stochastic analysis, creation of documentation and presentation of results.
  • Supervise and conduct "as-built" measurements of experiment related areas - such as assembly halls, caverns, etc - using 3D laser scanning technology, and perform post-processing of point cloud data, using the appropriate software, before data delivery to the integration team.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-ESA-2025-189-GRAP

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Survey Engineer - AWAKE Project (BE-GM-ASG-2025-247-GRAE)

Your responsibilities:

You will use state-of-the art surveying tools and software to achieve the sub-millimetre accuracy necessary to meet our goals. You will primarily contribute to the modernization of AWAKE, the pioneering plasma wakefield acceleration experiment, as well as to various alignment activities across the injector complexes and the Large Hadron Collider.

  • Participate in the design, development, and qualification of high-precision alignment system concepts, working in close collaboration with equipment groups;
  • Coordinate survey activities, including network measurements, installation tasks, and alignment processes, from the preparation and supervision of interventions to their execution;
  • Carry out, and supervise, the geometrical measurements at all stages of the production of the components from assembly to installation in situ using standard geodetic 3D techniques as well as laser tracker techniques,
  • Be responsible for the data processing, comprising advanced stochastic analysis, creation of documentation and presentation of the results,
  • Contribute actively to the R&D activities of the group related to alignment monitoring systems as well as participating in the development and maintenance of in-house surveying software applications,
  • Perform the technical supervision of students and contractors.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-ASG-2025-247-GRAE

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Survey Engineer for LHC Experiments (BE-GM-ESA-2025-240-GRAE)

Your responsibilities:

After several weeks of training, the person will be deeply involved in the survey and alignment of physics detectors and will:

  • Perform 3D measurements for the maintenance of our geodetic networks as well as for the geometrical follow-up of assemblies, adjustment and alignment of the detectors with respect to this network.
  • Participate in the organization and execution of measurements and in-field data capture.
  • Contribute to data processing, documentation of measurements and presentation of results in technical meetings.
  • Take part in the in-house software test validation, provide feedback to improve the survey field procedures, methods and software.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-ESA-2025-240-GRAE

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Software Engineer for Geodetic Metrology Applications (BE-GM-APC-2025-252-GRAE). 2 positions.

Your responsibilities:

You will contribute to the maintenance and evolution of the existing software infrastructure, with a focus on enhancing C++, Qt, and Python modules that are essential to the daily operations of CERN’s Surveying teams.

  • Investigate and resolve software issues reported by users, provide timely feedback, and coordinate development activities with the supervisor in accordance with current priorities.
  • Refactor and update legacy systems to address the challenges of new projects, improving scalability, performance, and robustness while ensuring compatibility with existing workflows.
  • Develop and deploy Python-based calculation and data visualization scripts on the existing user platform.
  • Design, develop, and optimize libraries and APIs for seamless integration across different computing platforms within CERN's IT and control systems infrastructure.

Job closing date: 04.01.2026 at 23:59 CET.

Apply here: BE-GM-APC-2025-252-GRAE