Current jobs at CERN - The European Research Center of Particle Physics
CMS DSS Electronics Technician (EP-CMX-2025-276-GRAE)
Employment Type: Full-time You will join a small technical team of engineers and technicians responsible for the design, prototyping, assembly, testing and installation of the Detector Safety System (DSS) and the subdetector safety systems. The team is also responsible for the operation of the existing central DSS system before its replacement by the new DSS system.
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Mechanical Technician for LHCb ECAL (EP-LBD-2025-274-GRAE)
Employment Type: Full-time You will become part of an international team working on the Upgrade of the ECAL sub-detector of the LHCb experiment. Your responsibilities• Mechanical assembly of modules made of lead or tungsten absorber and polystyrene fibres; • Participation in the dismantling and reassembly of the LHCb ECAL in the coming years; • Design and machining of precision pieces and tooling; • Mechanical support for test beam campaigns. More information here.
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Junior Electrical Engineer (EN-EL-CS-2025-273-GRAE)
Employment Type: Full-time As a Junior Electrical Engineer within the Cabling Section, you'll play a key role in expanding, strengthening, and maintaining CERN's signal and power cable installations, required for various systems within the CERN accelerators. In this role, you will also be closely involved in the High-Luminosity LHC (HL-LHC) programme
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Mechanical Design Technician for SHiP (EP-SME-SHP-2025-272-GRAE)
Employment Type: Full-time Introduction Are you a highly motivated and versatile technician dreaming to take up a challenge at the frontiers of science? Join the central project team of the newly approved Search for Hidden Particles experiment within the CERN's Experimental Physics Department, contributing to detector component prototyping and infrastructure design.
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Applied Physicist for ATLAS Trigger Reconstruction (EP-ADT-TR-2025-201-GRAP)
Employment Type: Full-time The goal of this project is to introduce innovative selections into the ATLAS trigger system to improve the identification of events in difficult regions of the parameter space, including rare Standard Model processes and exotic signatures. In collaboration with NextGen doctoral students, the selected candidate will contribute to the development of the trigger menu for the HL-LHC era.
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Controls Engineer (EP-DT-FS-2025-267-GRAE)
Employment Type: Full-time Your responsibilities As a Control Engineer in the detector cooling team, you will play a key role in the installation and commissioning of critical CO2 detector cooling control systems for ATLAS and CMS Phase II upgrade. These systems are PLC based with deported input/output and connected to a centralised SCADA system. Field equipment are using refrigeration instrumentation and actuators following industrial standards
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Full-Stack Software Developer (EN-ACE-2025-260-GRAE)
Employment Type: Full-time Our Engineering Department (EN) is looking for a Computing Engineer to join our Accelerators, Coordination, and Engineering Group (ACE). The ACE Group is in charge of the coordination of the activities for the interventions and changes to the LHC and its injectors. As part of the EN-ACE group, you will engage in the development and enhancement of software solutions for the group. This includes participating in the complete lifecycle of software development.
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Converter Controls Architecture Engineer (SY-EPC-CCE-2025-259-GRAE)
Employment Type: Full-time Study converter digital control architectures for the next generation particle accelerator (the Future Circular Collider – FCC), creating a model, and a parameterised scenario building tool to compare architectures. Your results will be used to select the most suitable control philosophy for power converters for the FCC, optimising dependability, versus capital investment (CAPEX) and ongoing operational costs (OPEX) Your responsibilities
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Mechanical Engineer for FCC-ee (EN-MME-EDS-2025-251-GRAE)
Employment Type: Full-time Your responsibilities: The Mechanical and Materials Engineering (EN-MME) group, within the Engineering Department (EN), is looking for a Mechanical Engineer to follow-up the construction, planning, maintenance and upgrade of the FCC-ee arc half-cell mock-up. The FCC-ee is one of the proposed new accelerators to be built at CERN in the coming years. It is a lepton circular collider with a circumference of ~90km, more than 70km of which are made by the arcs
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Survey Engineer – AWAKE Project (BE-GM-ASG-2025-247-GRAE)
Employment Type: Full-time Join the Geodetic Metrology group at CERN, where you will take part in the metrology and alignment of a wide variety of components that are used in particle physics experiments! You will use state-of-the art surveying tools and software to achieve the sub-millimetre accuracy necessary to meet our goals
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Data and Analytics Engineer (FAP-BC-ENG-2025-243-GRAE)
Employment Type: Full-time Are you passionate about data, problem-solving, and turning complex information into clear insights? Do you enjoy maintaining and improving data systems, from legacy databases to modern reporting platforms? Join our agile, self-organized team of engineers to help maintain and develop CERN's Corporate Information Systems! You'll be part of the Business Computing (BC) group, supporting Finance and Procurement.
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System & Network Administrator (HSE-RP-CS-2025-242-GRAE)
Employment Type: Full-time The Radiation Protection (RP) Group of the Occupational Health and Safety and Environmental Protection (HSE) Unit ensures that personnel on the CERN sites and the public are protected from potentially harmful effects of ionising radiation linked to CERN activities
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Survey Engineer for LHC Experiments (BE-GM-ESA-2025-240-GRAE)
Employment Type: Full-time Join the Geodetic Metrology group at CERN, where you will take part in the metrology and alignment of a wide variety of components that are used in particle physics experiments. You will use state-of-the art surveying tools and software to achieve the sub-milimetre accuracy necessary to meet our goals! Your responsibilities:
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Electronics Technician - PCB Assembly (BE-CEM-EPR-2025-239-GRAE)
Employment Type: Full-time Join CERN's Electronics Service (EPR) team within the BE-CEM group, responsible for the layout, industrialisation, and production of electronics modules for CERN's accelerator complex. You will contribute to the assembly and testing of printed circuit boards (PCB), gaining hands-on experience with state-of-the-art industrial equipment and quality standards. Your responsibilities:• Perform PCB assembly and soldering of Surface Mount Devices (SMD) and connectors.
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Survey Technician (BE-GM-ASG-2025-233-GRAE)
Employment Type: Full-time Within a team of surveyors, you will perform high-precision measurements for the metrology and alignment of components installed in the accelerators, their beam transfer lines and physics experiments throughout CERN. 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.
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Junior Survey Engineer (BE-GM-ASG-2025-234-GRAE)
Employment Type: Full-time Within a team of surveyors, you will perform high-precision measurements for the metrology and alignment of components installed in the accelerators, their beam transfer lines and physics experiments throughout CERN. 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.
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Junior Controls and Automation Engineer (BE-ICS-ECS-2025-222-GRAE)
Employment Type: Full-time Join the team that keeps CERN's accelerators and detectors cool and running at peak performance! As part of the Cooling & Ventilation Developers Team, you'll design and commission advanced HVAC and cooling control systems vital to the LHC's operation. Collaborate with experts from the Beams Department and Industrial Control Systems Group to ensure precision and reliability at an unprecedented scale
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Early Career Professionals - Technical Field – Spontaneous Applications
Employment Type: Full-time Your responsibilities Join us in a place that can be hotter than the centre of the sun, and colder than the vacuum of space, at the very same time. This is the smartest way to learn more than you can imagine and see your work travel at the speed of light. Almost. This is the fastest way to give your career momentum. This is your Origin. Where your career begins. Take part! All our currently available projects are published individually on our career site here.
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Short Term Internship 2026
Employment Type: Intern 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
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Mechanical Technician for AD e-Cooler (SY-BI-ML-2025-140-GRAE)
Employment Type: Full-time Your responsibilities Are you a Mechanical Technician at the beginning of your career? Join the Mechanics and Logistics (ML) Section within the Beam Instrumentation (BI) Group at CERN!
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