Theoretical Physicist
At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the wor...
CE
European Organization for Nuclear Research Jobs
CERN
Intergovernmental high-energy physics research lab on the Franco-Swiss border, home of the Large Hadron Collider. Not an EU body.
European Organization for Nuclear Research is currently advertising 97 open positions on our EU Jobs Alert tracker. Every vacancy below is sourced from the official European Organization for Nuclear Research careers portal, normalised into a consistent schema, and refreshed daily so you never miss a deadline.
Use the filters on this page to narrow European Organization for Nuclear Research roles by grade, contract type, location, and policy domain. The listing is updated daily from official EU recruitment sources and every job links straight through to the institution's application page. No recruiter middlemen, no expired postings.
CERN, the European Organization for Nuclear Research, is an intergovernmental laboratory for high-energy physics on the Franco-Swiss border near Geneva. It operates the Large Hadron Collider and a wider complex of accelerators, detectors and computing systems used by physicists from around the world. CERN is not an institution of the European Union, and it does not recruit through EPSO or use the EU AD, AST and FG staff grades. It runs its own recruitment through the CERN careers portal at https://careers.cern/ and applies its own staff and fellowship categories, its own salary scales and its own rules on nationality and duty station. The organisation hires scientists, engineers and technicians alongside administrative, finance and support staff. For job-seekers this means the application route, contract types and benefits differ from those at EU bodies such as the European Research Executive Agency, even though many of the underlying disciplines overlap.
What CERN is and what it does
CERN was founded in 1954 as one of Europe's first joint scientific ventures after the Second World War. Its full name is the European Organization for Nuclear Research, and its work centres on particle physics: the study of the fundamental constituents of matter and the forces between them. The laboratory designs, builds and runs particle accelerators, most visibly the Large Hadron Collider, together with the large detector experiments such as ATLAS and CMS that record collisions. Around this core sit programmes in accelerator technology, detector development, cryogenics, superconducting magnets, radiation protection, industrial cooling and ventilation, and large-scale computing and data handling. CERN also has a long record of technology transfer, and the World Wide Web was invented there in 1989 to help physicists share information. The organisation is funded by contributions from its member states and governed by a Council on which each member is represented. Thousands of visiting researchers use CERN facilities without being employed by CERN itself, which shapes how the laboratory staffs its own permanent and fixed-term roles. Understanding this mandate helps explain the mix of vacancies you will see: deep technical and scientific posts sit alongside the engineering, safety and administrative functions needed to run a large industrial research site. You can browse current openings collected on this site under jobs.
Where CERN is based
CERN's main site straddles the border between France and Switzerland, just outside Geneva. The principal duty station is Meyrin, a Swiss commune next to Geneva, with further installations at Prevessin on the French side and accelerator infrastructure running underground across the border region. In the data for this site the duty stations appear as Geneva and Meyrin. Almost all roles are on-site because the work depends on physical access to accelerators, detectors, workshops and laboratories. Staff typically live in the Geneva area or in neighbouring France, and the cross-border location has practical consequences for taxation, residence permits and daily commuting that new recruits need to plan for. Geneva is a major hub for international organisations, which means an established community of expatriate staff, international schools and support services, but also a high cost of living. CERN provides relocation support and guidance on settling in, including help with permits and administrative registration. For anyone comparing options, it is worth noting that CERN's single-site, laboratory-based model differs from EU agencies spread across capitals and from bodies such as the European Space Agency, which operates several technical centres across member states.
The roles CERN hires for
CERN's vacancies cluster around science, engineering and technical trades, with a supporting layer of administrative and professional posts. Recent listings include an Experimental Physicist, an Applied Physicist working on future superconducting detector magnets, a Calorimeter Development Physicist and a Material Scientist for ISOL targets, reflecting the research and detector side of the laboratory. On the engineering side you will find an Electrical Engineer for Safety Systems and a range of accelerator and infrastructure roles, including a Particle Accelerator Operator. Skilled technical trades are a large and steady category: an Installation and Maintenance Technician, an ATLAS Detector Installation Technician and a Technician for Industrial Cooling, Ventilation and Refrigeration are all recent examples. Beyond the strictly scientific and technical, CERN also recruits for functions that keep a large organisation running, such as a Sustainability Reporting and Communications Project Officer and specialist roles like an external professional expert for the CERN Pension Fund Governing Board. This spread matters for applicants: you do not need a physics doctorate to work at CERN. Electricians, mechanical technicians, IT specialists, accountants, human resources staff and communications professionals all feature. Matching your background to the correct job family and contract category is the first practical step when reading a vacancy notice.
Staff categories and contracts
CERN uses its own employment categories rather than EU staff grades. The main population is made up of staff members, employed on limited-duration contracts that can in some cases lead to an indefinite contract. Alongside them, CERN runs well-known early-career schemes. The Fellowship programme, which appears in listings such as a Research Fellowship in Applied Physics and Engineering, offers graduates and postgraduates a period of paid work at the laboratory. Student programmes cover technical studentships, doctoral students and administrative students, giving people still in education a route to hands-on experience. There are also associate positions and short-term arrangements for visiting professionals and experts. In the data collected here these map loosely onto contract labels such as Contract Agent, Traineeship and Other, but you should always read the specific vacancy for the exact category, duration and conditions, because CERN's internal terminology is what governs the contract. The category you apply under determines eligibility, pay, social security coverage and the maximum length of stay. Early-career schemes usually carry age or experience limits and defined durations, while staff-member posts are aimed at building a longer career at the laboratory. Choosing the right category, and checking whether a role is open to external candidates or reserved internally, avoids wasted applications.
Eligibility, nationality and languages
Because CERN is an intergovernmental organisation and not an EU body, its nationality rules follow its own membership rather than EU citizenship. Recruitment of staff members and fellows is generally directed at nationals of CERN member states and associate member states, and some programmes extend to nationals of non-member states under specific conditions. This is an important difference from EU institutions, where EU citizenship is the baseline requirement. Applicants should check each vacancy for the exact nationality conditions, as these vary by contract category and programme. CERN has two official languages, English and French. Many technical and scientific roles are conducted mainly in English, but a working knowledge of the other language is valued and, for some administrative and public-facing posts, expected. Day-to-day life on a cross-border site also makes basic French useful outside work. Qualifications requirements depend heavily on the job family: research and engineering roles usually call for relevant university degrees and, for physicist posts, often a doctorate, while technician roles emphasise vocational qualifications and hands-on experience. Student and fellowship schemes have their own academic-stage requirements. Reading the eligibility section of a notice carefully, including nationality, diploma level and any experience thresholds, is the single most useful thing a candidate can do before applying.
How to apply and what pay looks like
Applications go through CERN's own recruitment portal at https://careers.cern/, not through EPSO or any EU system. You create an account, complete a profile and apply to specific published vacancies, attaching a CV and the supporting documents each notice requests. Selection typically involves screening against the published requirements, followed by interviews and, for some technical and scientific posts, further assessment. Timelines vary by category, and popular fellowship and student programmes often run to fixed application windows, so noting deadlines matters. On pay, CERN sets its own salary scales, which are competitive for the Geneva labour market and are not the EU salary grades used by bodies such as REA. As an intergovernmental organisation, CERN staff generally benefit from a specific international tax and social-security status rather than ordinary national income tax, though the precise treatment depends on nationality, contract category and personal circumstances, so applicants should not assume a fixed figure. Typical benefits include health insurance, a pension scheme, family allowances where applicable and relocation support for those moving to the Geneva area. Because exact conditions differ by category, the reliable approach is to read the financial and benefits section of each vacancy, and to weigh the high local cost of living against the gross figures quoted. Listings gathered on this site link back to the official notices for full detail.
Preparing a strong application
A CERN application rewards precision. Start by identifying the exact contract category a vacancy falls under, whether it is a staff-member post, a fellowship, a student place or an associate arrangement, because the eligibility rules and expectations differ sharply between them. Read the required qualifications and match your CV directly to them, using the same terms the notice uses for the discipline, equipment or systems involved. For technical and scientific roles, be concrete about the accelerators, detectors, instruments or software you have worked with, since selection panels look for demonstrable hands-on experience rather than general statements. Fellowship and student schemes often have firm academic-stage and timing conditions, so check that you fall within the eligible window before investing effort. Prepare a focused motivation that explains why the specific team or programme fits your background, and gather any documents the notice requires, such as diplomas, references or transcripts, in advance so a firm deadline does not catch you out. If you are relocating, think early about the practical steps of moving to the Geneva border area, including permits, taxation under CERN's international status and the local cost of living. Finally, treat each vacancy on its own terms and rely on the official notice for the definitive requirements. The listings collected on this site link back to those notices and to related pages such as jobs so you can compare openings before you apply.
Frequently asked questions
- Is CERN part of the European Union?
- No. CERN is an independent intergovernmental organisation founded in 1954 and funded by its member states. It is not an EU institution, so it does not recruit through EPSO and does not use the EU AD, AST or FG staff grades that apply to European Union bodies.
- How do I apply for a job at CERN?
- You apply through CERN's own careers portal at careers.cern by creating a profile and submitting an application to a specific published vacancy. Each notice lists the required documents, eligibility conditions and deadline, and selection usually includes screening followed by one or more interviews.
- Do I need to be a physicist to work at CERN?
- No. While CERN hires many physicists and engineers, it also recruits technicians, IT specialists, accountants, human resources, communications and administrative staff. Skilled technical trades such as electrical, mechanical and cooling systems technicians form a large and steady part of the vacancies published each year.
- Which nationalities can work at CERN?
- Recruitment is generally aimed at nationals of CERN member and associate member states, with some programmes open to others under specific conditions. This differs from EU institutions, which require EU citizenship. Always check the nationality rules stated in each individual vacancy notice before applying.
- What languages do I need for a CERN role?
- CERN's official languages are English and French. Many technical and scientific posts operate mainly in English, but knowledge of French is valued and sometimes required for administrative or public-facing roles. Basic French is also useful for daily life in the Geneva border area.
- Where is CERN located?
- CERN's main site is on the Franco-Swiss border near Geneva, with its principal duty station at Meyrin in Switzerland and further installations on the French side. Most roles are on-site because the work depends on physical access to accelerators, detectors and laboratories.
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