As a member of a team responsible for the vacuum systems of the High-Luminosity Large Hadron Collider, a project that will upgrade the performance of the world's most powerful accelerator, your role will involve participating in acceptance tests of vacuum equipment, including those for the beam colimitation systems.

These activities will take place within dedicated workshops, laboratories, and the LHC tunnel area. You will collaborate closely with students, trainees, experienced technicians, and engineers in a highly motivating and international environment.

Your primary responsibilities will include the following tasks:

• Measurement of pressures in the ultra-high-vacuum range. Identify and quantify residual gas in vacuum systems by mass spectrometers, including the detection of organic contaminants;
• Mechanical assembly of vacuum components and helium leak detection of sub-assembly or fully assembled accelerator vacuum equipment;
• Generating appropriate documentation for vacuum equipment;
• Participating in the logistics and overseeing the procurement process for vacuum components;
• Participating in interventions on vacuum equipment in the LHC tunnel, including mechanical installation, helium leak detection, in-situ heating, and activation of non-evaporable getter coatings.

The skills and/or technologies you should have and/or know:

• Knowledge of mechanical and materials;
• Experience on performing laboratory measurements in the field of materials and vacuum technology;
• Knowledge of vacuum would be a plus;
• Ability to work in team.

Language requirements: fluency in English, the ability to work in French would be an advantage.

This job requires:

• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.

At the ISOLDE experiment, the Frontend and Target are key devices because they are the first elements of the radioactive beam chain. You will support the design and prototyping for the future generation of Frontends and Target bases into the SY-STI-RBS team.
You need to have a good mechanical design knowledge using modern modeling tools (CATIA/SmarTeam). You will propose improvements, present results to the colleagues and write tests reports in order to reach the optimal solution, in particular for the reliability, the material choice, the quality, the safety, the costs and the schedule.

In particular, you will contribute to the following:

• 3D conceptual design of prototypes (sub-parts of the next generation of Frontends / Target bases for ISOLDE);
• 2D production plans according ISO rules;
• Contact with CERN workshops and external suppliers;
• Following the production and the planning;
• Quality control of the received pieces;
• Assembly, design review, modifications, basic machining;
• Tests, design review, modifications;
• Report writing.

The skills and/or technologies you should have and/or know:

• Precision/clean work;
• 3D/2D drawingsQuality control;
• Report writing (MS office);
• Work with other experts/suppliers;
• Solution driven, creativity;
• Autonomy.

Language requirements: fluency in French, the ability to work in English would be an advantage.

This job requires:

• Work in Radiation Areas.

Are you a passionate Electronics Technician who would like to participate in the development, manufacturing and tests of electronic equipment pertaining to the quench protection systems for the superconducting magnets of the most complex particle accelerator? Take part!

The Electronics Technician takes care of the quality control of CERN's electronics infrastructure and systems. You will also be involved in designing, producing, installing, commissioning, operating and maintaining CERN's electronics infrastructure and systems, notably those required for the accelerator complex.

In the Technology (TE) department, Machine Protection and Electrical Integrity (MPE) group, you will take responsibility for the design, procurement, implementation and exploitation of custom-made electronics for the LHC quench protection systems of the superconducting magnet circuits.

As an Electronics Technician, you will participate in sampling tasks and laboratory analyses. In particular, you will:

• Contribute to the design and development of test benches for the qualification of electronics used in applications for the magnet circuits;
• Organise acceptance tests and ensure the effective reception of new electronics;
• Maintain and keep up-to-date the databases related to maintenance and operation of the various components;
• Prepare and compile relevant documentation.

The skills and/or technologies you should have and/or know:

• Initial experience in measurement techniques;
• Initial experience in design and assembly of electronic crates, racks and test benches;
• Initial experience in power electronics and related controls;
• Database management systems maintenance.

Language requirements: fluency in English, the ability to work in French would be an advantage.

This jobs requires:

• Interventions in underground installations.
• A valid driving licence.

You are a mechanical technician interested to work in a team on the assembly of the superconducting current leads of High Luminosity upgrade of the Large Hadron Collider (HL-LHC), in particular:

• Assemble the cryostats of the current leads;
• Check and leak test the cryostats;
• Prepare the resistive parts of the leads and the heat exchangers with the high temperature superconductor (HTS) cables for electron-beam welding;
• Install the electron-beam welded parts of the leads on supports;
• Contribute to the installation of the instrumentation;
• Integrate the instrumented leads in their cryostats;
• Give the twist pitch to the HTS cables and install the protective sleeves;
• Install the lower flexible cryostat, leak test the assembly;
• Prepare the current lead assembly for transport.

The skills and/or technologies you should have and/or know:

Mechanical assembly, hand tool and (some) machine tool usage, lifting tools and cranes (or the willingness to learn), reading mechanical drawings assembly sequences, some experience in computer assisted drawing (CAD) is beneficial.

Language requirements: fluency in English, the ability to work in French would be an advantage.

This jobs requires:

A valid driving licence.

As a member of a team responsible for operating and upgrading the vacuum systems of the Large Hadron Collider, your role will involve participating in the mechanical design, manufacturing, and installation of accelerator vacuum equipment. These activities will take place within dedicated workshops, laboratories, and the LHC tunnel area. You will collaborate closely with students, trainees, experienced technicians, and engineers in a highly motivating and international environment.

Your primary responsibilities will encompass the following tasks:

• Designing and creating computer-aided design (CAD) drawings for mechanical parts and assemblies used in vacuum laboratories and accelerators.
• Manufacturing mechanical components using conventional machines, such as milling and turning equipment.
• Assembling and operating ultra-high-vacuum systems.
• Generating appropriate documentation for vacuum equipment.
• Participating in the logistics and overseeing the procurement process for vacuum components.

The skills and/or technologies you should have and/or know:

• Mechanical manufacturing with conventional milling and turning machines.
• Understanding technical drawings.
• Practical experience with CAD software.
• Operation of vacuum systems and instrumentation would be an asset.

Language requirements: fluency in English, the ability to work in French would be an advantage.

This job requires:

• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.

You are multitasking, autonomous, inventive and passionate about mechanical engineering? Take part!
 

The SY-STI-TCD section oversees the conceptual design, construction, operation, and maintenance of beam-intercepting devices across the CERN's accelerator complex. The beam intercepting devices are precision mechanical equipment working in harsh environments that must be reliable for the operation of CERN accelerators.

• You will be part of multidisciplinary team in charge of the conception, manufacturing, assembly, installation, maintenance and project follow-up for the future experiments and SPS & LHC Beam Dumps and absorbers.
• You will also coordinate the production of the equipment, schedule the assembly as well as all required mechanical tests before installation.
• You will also contribute to mechanical support activities carried in the accelerators complex and you could mill/turn mechanical components in our mechanical workshop.

The skills and/or technologies you should have and/or know:

• Good sensitivity in assembling and testing precision mechanics.
• Good communication, well-organized with accountability. Working in a team, as well as independently.
• CAD systems, 3D and 2D.

Language requirements: fluency in English, the ability to work in French would be an advantage.

This job requires:

• Work in Radiation Areas.
• Interventions in underground installations.
• A valid driving licence.

As Electrical Controls technician in the Electrical Engineering Group, you will actively contribute to the installation, engineering, cabling and commissioning of controls equipment, including power and signal converters, network switches, remote acquisition units and terminal units required for the supervision of electrical equipment, as part of a SCADA system for the supervision of the CERN electrical power network.
The job will also require coordination of contractor technicians for on-site activities, diagnosis and troubleshooting of controls equipment and communication bus faults, production of relevant technical documentation and reports.

The skills and/or technologies you should have and/or know:

• Experience with installation, engineering and testing of SCADA and acquisition systems.
• Experience in serial or Ethernet based fieldbus troubleshooting.
• Knowledge in programming of PLC systems.

Language requirements: fluency in English, the ability to work in French would be an advantage.

This job requires: 

• A valid driving licence.
• Interventions in underground installations.
• Stand-by duty, when required by the needs of the Organization.

You will join the Superconducting Radiofrequency (SRF) section at CERN as a clean room technician.

• You will participate to advanced mechanical assembly operations of superconducting RF components like RF cavities, RF couplers and ultra-high vacuum components. The work includes also the preparation for cleaning of mechanical parts like degreasing, drying and particle counting, as well as the preparation of screws and gaskets of different types before assembly.
• You will also be in charge of the management of the clean room consumables like clothes, gloves and masks as well as the compressed gas cylinders (Nitrogen, Helium, etc..) which are required for the operation of the clean room.

This jobs requires: 

A valid driving licence.

You are passionate about mechanical engineering and want to project ideas into reality? 

You will join the SY-STI-TCD section which is responsible for the technical coordination and operation of the neutron Time Of Flight (n_TOF) facility and related experiments.

• You will participate to the conception, technical design, internal and external manufacturing and assembly activities for new and upgraded components, support structures and experimental devices. You need to discuss with experimental physicists, identify requirements for the experiment and translate it into a mechanical design;
• You will provide mechanical and logistics support to the n_TOF Technical coordinator for the operation of the n_TOF facility and related experiments, including the irradiation station close to the spallation target.

The skills and/or technologies you should have and/or know:

• Using CAD systems such as CATIA, 3D and 2D drawings;
• Machining, assembling and testing of mechanical systems;
• Good communication;
• Working in a team, as well as independently.

Design and construction of special mechanical devices for Radio Frequency (RF) systems for the future CERN accelerator upgrade. 

The skills and/or technologies you should have and/or know:

• Conception of mechanical objects;
• Use of CAD (Catia, Ansys);
• Machining;
• Metrology;
• Installation and tests of equipment.

Language requirements: F luent in English, the ability to work in French would be an advantage

This job requires a valid driving licence.