Current jobs at CERN - The European Research Center of Particle Physics
Full-Stack Web Developer (SY-EPC-CCS-2025-292-GRAE)
Employment Type: Full-time As a full-stack developer in the Tools Team at SY-EPC-CCS, you'll become the main responsible for a set of crucial web applications used by converter experts to ensure smooth operation of the power converters at CERN. You'll be working closely with other team members, applying an agile work approach, and work on different products in sprints (Scrum). Your responsibilities• Working on front-ends in JavaScript (Vue3.js). • Working on back-ends in Python (FastAPI).
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Electrical Engineer - Power Transformers (SY-EPC-HPC-2025-291-GRAE)
Employment Type: Full-time You will join the team working on oil-filled and cast-resin transformers for power converter applications. In the framework of the project, many oil-filled transformers will be replaced by cast-resin transformers, for environmental reasons
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Full-Stack Software Engineer (EP-CMO-2025-288-GRAE)
Employment Type: Full-time CMS is one of the largest physics experiments of the Large Hadron Collider (LHC), located at CERN's Point 5 site in Cessy, France. The position involves contributing to the design, development, and maintenance of software and computing systems supporting the operation of the CMS experiment and communication within its user community
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Monitoring Service Operations Engineer (IT-DA-ASM-2025-285-GRAE)
Employment Type: Full-time The CERN IT Monitoring infrastructure provides monitoring services for the CERN Datacenter and the WLCG and CERN experimental communities. Our infrastructure and services process over 100 thousand log messages per second and expose over 160 million active time series and over 200 billion stored documents exposed to a community of more than 6000 active users
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Junior Mechanical Engineer for CMS Experiment (EP-CMX-SCI-2025-277-GRAE)
Employment Type: Full-time We are seeking a motivated Mechanical Engineer to lead the design, procurement and on-site implementation of a reinforced passage bridge in UXC55, and to support associated heavy lifting operations for the HL (High Luminosity) upgrades. In this role you will act as the technical coordinator for the reinforced bridge that will allow passage of the Endcap Calorimeters structures
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Production Engineer (BPM) (SY-BI-ML-2025-282-GRAE)
Employment Type: Full-time You will be responsible for following up on the production of the cryogenic Beam Position Monitors (BPM) and overseeing their installation on the beam screen, all the way through to their insertion into the magnets. You will also take charge of the detailed design work and production follow-up for the room-temperature Crab Cavities BPMs, as well as any additional BPMs required by the project.
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Event Operations Junior Officer (IR-SG-VI-2025-284-GRAE)
Employment Type: Full-time Are you passionate about event coordination? Come and join the Event Operations team at CERN Science Gateway Campus. In addition to the Globe of Science and Innovation and inaugurated in October 2023, Science Gateway is CERN's new centre for scientific outreach and education
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Doctoral Student Programme 2026-2
Employment Type: Full-time What you'll do You’ll spend up months working on your doctoral thesis in a truly unique environment where science, technology and innovation meet. You’ll be part of an international community of experts, gaining experience at the forefront of research and engineering. Your responsibilities · Carry out your doctoral research in collaboration with CERN and your home university.
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Full-stack Software Engineer (EN-EL-CBS-2025-279-GRAE)
Employment Type: Full-time You will contribute to the design, development, and maintenance of web-based applications supporting the operational and engineering activities of the Electrical Engineering Group, working within a small but agile and talented cross-functional team in the Controls and Business Support Section. Your responsibilities:• Maintain, enhance, and modernise existing web applications that support operational workflows.
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FPGA Developer and Verification Engineer (SY-EPC-CCE-2025-278-GRAE)
Employment Type: Full-time You will join the Converter Controls Electronics (CCE) section to contribute to the development of high-performance digital control systems. Our team designs the electronics that drive power converters: essential components that power the magnets across the accelerator complex, ensuring the success of the injector chain. This position offers a unique opportunity to bridge the gap between academic theory and high-reliability industrial engineering
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Mechanical Safety Engineer (HSE-OHS-PE-2025-270-GRAE)
Employment Type: Full-time Are you knowledgeable in mechanical design and construction? Do you want to contribute to a unique and challenging research infrastructure? Then your Origin starts here. Deepen your knowledge and expertise faster than anywhere else on earth. Take Part!
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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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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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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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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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