Geneva, Switzerland What you'll do
You will play a key role in operating LINAC3, CERN’s ion linear accelerator, helping ensure reliable and efficient beam delivery across the injector chain. You will oversee the safe operation and performance of ion beams supplied to downstream machines, supporting daily operations, commissioning and machine development.
Working closely with operators, equipment experts and machine coordinators, you will contribute to optimising beam quality, availability and operational efficiency, while advancing automation and operational tools.
The Operations Group manages the full CERN accelerator complex and its technical infrastructure, including the LHC, delivering proton and heavy ion beams for a diverse experimental program. You will contribute directly to preparing beams for CERN’s physics research.
Your responsibilities
- Contribute to and coordinate the daily operation of the LINAC3 ion accelerator, ensuring safe, reliable and timely beam delivery to downstream accelerators.
- Prepare, coordinate, and follow up the machine restart, beam commissioning, development and technical interventions.
- Coordinate closely with operators, engineers and equipment specialists to diagnose and resolve operational issues.
- Monitor beam quality and machine performance, analyse operational data and take corrective actions when needed.Use, maintain, and evolve standard operational tools, diagnostics and monitoring applications required for routine operation, troubleshooting and performance follow-up.
- Participate in and lead machine development activities aimed at improving performance, stability and availability.
- Develop and integrate advanced tools and algorithms for beam measurements, corrections, automation and performance optimisation, in close collaboration with machine and equipment experts.
- Produce and maintain operational and safety documentation for the accelerator, including new ion species.
- Contribute to shift coordination and operational planning, including participation in coordination rotas.
- Prepare and present clear status updates and reports for coordination meetings and management.
- Support knowledge transfer and on-the-job training of operators and junior colleagues.
- Contribute to cross-machine activities to ensure synergies and share best practices.
Still here? Let's make a quick check about
Your profile
- Solid background in accelerator or beam physics, with a good understanding of charged particle beams and accelerator components.
- Hands-on experience with the operation, commissioning or performance optimisation of a complex scientific or industrial facility.
- Ability to analyse operational data, identify performance limitations and propose practical solutions.
- Experience working with and development of operational software, control system and data analysis tools (e.g. Python, Java and scientific programming languages).
- Practical knowledge of computer programs for beam simulations and accelerator modelling would be an asset.
- Proven ability to coordinate activities involving multiple technical teams and stakeholders.
- Strong problem-solving skills and ability to take responsibility in operational and time-critical situations.
- Good communication skills, with the ability to explain technical topics clearly to different audiences.
- Interest in contributing to continuous improvement of operational tools, procedures and safety practices.
- Experience in mentoring, training or knowledge transfer is considered an asset.
- Master's degree or PhD or equivalent relevant experience in the field of Applied Physics or Control & Automation Engineering or a related field.
Your skills
- Operation of accelerators.
- Analysis and optimization of accelerator performance.
- Knowledge and application of accelerator physics theory.
- Design and implementation of safety interlock systems.
- Configuration and implementation of industrial data-acquisition, monitoring and control systems.
- Organisation, planning and control.
- Takes responsibility for own actions and decisions.
- Produces workable and timely solutions that meet requirements.
- Expresses opinions, ideas and suggestions with conviction and in a logical/structured manner; keeps to the point.
- Builds and maintains constructive and effective work relationships.
- Remains objective, focussed and productive in a stressful environment; focuses on solutions rather than problems.
- Spoken and written English or French, with a commitment to learn the other language.
Employment conditions
- A valid driving licence.
- Work in Radiation Areas.
- Interventions in underground installations.
- Participation in a regular stand-by duty, including nights, Sundays and official holidays.
Global Benefits at CERN
Let's get you ready
Be sure to meet the eligibility criteria
- You are a national of a CERN Member State or Associate Member State. Currently, we cannot consider applications from Pakistani and Lithuanian nationals for positions with a 2026 start date, as the ceiling defined under Article II.5 of the Associate Membership Agreement has been reached.
- You have relevant qualifications and professional experience.
- If you have previously held a Staff contract at CERN, you will not be eligible for these positions.
- Please pay attention to the additional criteria and requirements for this specific position and mentioned above.
You will need these documents to complete your application
- Your CV (English or French)
- Any document you consider relevant to your application
Your CERNDepartment
Its mission is to lead the development, construction, and operation of advanced particle accelerators, and to provide cutting-edge technology solutions that enable new discoveries in fundamental physics. Committed to promoting a culture of excellence, creativity and collaboration, individuals from diverse backgrounds contribute to the advancement of science and technology, as well as engaging in scientific education, outreach, and broader knowledge and technology transfer initiatives.
Overview of CERN
Discover a world where the impossible is made possible!
At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive.
Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success.
If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!
Ready To apply?
Be prepared with our resources and tips
All good?
Still have a doubt ? Here are the most frequently asked questions
-
What should I expect during my first week at CERN?
Your onboarding at CERN includes a comprehensive induction programme, which starts with an official welcome session at the beginning of each month. In addition, you will receive important information both before and after your arrival to ensure a smooth transition into your new role. This process is designed to help you get acquainted with CERN’s environment, your team, and the tools and systems you’ll be using.
-
How big would the team be?
The size of the team you'll be working with at CERN depends on the specific role and department. Some teams are small and highly specialized, while others are larger and more interdisciplinary. During the interview process, you'll have the opportunity to learn more about the team structure for the position you are applying for. -
What is the working language at CERN?
The working languages at CERN are English and French. However, it is not always mandatory to speak both languages to work at CERN. We offer language training to help you acquiring the other language. -
What support does CERN provide for relocation?
CERN does not offer direct assistance with relocation. However, depending on your role and specific criteria, you may be eligible for certain benefits such as an installation allowance and coverage of travel expenses to join CERN. These benefits are designed to help ease the transition when relocating to the Geneva area. For more information, please consult the “Salary, Benefits and Support“ page. -
Do I need a visa to work at CERN?
Whether you need a visa to work at CERN depends on your nationality and the duration of your stay. CERN assists with the necessary visa and work permit processes for its employees and visitors. The specific requirements will be communicated to you during the recruitment process. -
What would my salary be?
Salaries at CERN are determined by a structured scale. Salaries are based on your role, qualifications, and experience, and are not subject to negotiation. Specific details will be provided as your application progresses. For more information, please refer to the dedicated page.