Computational Physicist; BE-OP-PS--GRAE

Overview

In this role, you will join a multidisciplinary team of laser physicists, control engineers, and machine learning specialists to develop the automation layer of TALISMAN, a project aimed at automating laser ionization for the production of medically relevant radionuclides.

• Automate critical steps of the ion beam production chain, such as laser preparation, beam-path alignment, ion beam optimisation, and continuous monitoring, building on existing control interfaces;
• Engage with project stakeholders to define and refine requirements throughout the project lifecycle;
• Work hands-on in the laboratory with the laser setup alongside laser physicists and controls experts;
• Research and prototype suitable control algorithms, drawing from classical control, optimal control, and machine learning where necessary;
• Engineer the chosen approaches into automation and optimisation modules that integrate with existing device control software, following sound software engineering practices;
• Drive solutions toward operational deployment, including validation and documentation.

• Initial experience working in an experimental laboratory / test-bench environment (optics, laser systems, or similar);
• Practical experience with control and/or optimisation algorithms, or machine learning (ML) methods;
• Programming experience in Python, including scientific and ML libraries;
• Practical application of software engineering practices, including version control (Git).

• Experience applying control algorithms and ML techniques to real-world systems and bringing solutions to operational deployment;
• Experience interfacing software with laboratory hardware (motors, cameras, sensors, or similar);
• Experience with beam transport and alignment;
• Prior exposure to LabVIEW.

• Solid grounding in physics or engineering;
• Strong problem-solving skills and the ability to work independently;
• Ability to translate algorithmic concepts into working, maintainable code;
• Familiarity with image processing and analysis techniques;
• Excellent communication and collaboration skills, comfortable working across physics, controls, and software domains;
• Spoken and written English, with a commitment to learn French.

• You are a national of a CERN Member or Associate Member State;
• By the Final date to receive applications, you have a maximum of two years of professional experience since graduation in Applied Physics, Computer Science (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree;
• You have never had a CERN fellow or graduate contract before;
• Applicants without University degree are not eligible;
• Applicants with a PhD are not eligible.

Job closing date: 14.06.2026 at 23:59 CEST.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours:

40 hours per week

Job flexibility:
Fully Onsite

Target start date: 01-August-2026

Job reference: BE-OP-PS--GRAE

Field of work:
Applied Physics

Benchmark job: 200140 - Applied Physicist

• A monthly stipend between  Swiss Francs per month (tax free) depending on your degree;
• 30 days of paid leave per year plus 2 weeks annual closure;
• Coverage by CERN’s comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund;
• Family, child and infant monthly allowances depending on your individual circumstances;
• A relocation package (installation grant and travel expenses) depending on your individual circumstances;
• Possibility to extend your contract up to 36 months;
• On-the-job and formal training including language classes.

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!

More information about us, here: careers.cern