Radiation Physicist for FCC-ee (SY-STI-BMIGRAP)

Geneva - Switzerland

Monthly Salary: Not Disclosed

Posted on: 3 hours ago

Vacancies: 1 Vacancy

Job Summary

In this role you will perform Monte Carlo radiation transport studies for the FCC-ee experimental insertions quantifying the radiation exposure of machine components and equipment installed in the FCC-ee tunnel. You will contribute to the design and optimisation of shielding solutions for both the final focus quadrupoles and the tunnel addition you will perform radiation background studies for the experiments.

Your responsibilities

Carry out particle-matter interaction studies with the FLUKA Monte Carlo code and implement geometry models for FCC-ee machine studies in particular the Machine-Detector Interface.
Assess the expected radiation levels due to beam losses and synchrotron radiation emission in the FCC-ee experimental insertions.
Perform background studies as input for the detector design; closely collaborate with beam physicists in charge of particle tracking studies.
Actively participate in the conceptual design of radiation shielding assemblies; closely collaborate with mechanical engineers in order to develop shielding concepts into technical specifications.

Your profile

Knowledge of particle-matter interactions.
Experience with Monte Carlo radiation transport simulations.
Proficiency in scientific computing.
Knowledge of accelerator physics is an advantage.
The ability to collaborate in a multidisciplinary and international team environment.

Skills

Knowledge of Monte Carlo radiation transport codes (FLUKA Geant4 etc.).
Basic programming skills (e.g. Python C) for data analysis and code development.
Familiarity with numerical methods and scientific computing.
Problem-solving mindset and ability to learn new tools quickly (e.g. auxiliary tools for particle transport simulations).
Excellent team-working attitude with colleagues from different fields of applied physics and engineering.
Good level of both spoken and written English with a commitment to learn French.

Eligibility criteria:

You are a national of a CERN Member or Associate Member State.
You have a professional background in Applied Physics (or a related field) and have either:
- a Masters degree with 2 to 6 years of post-graduation professional experience;
- or a PhD with no more than 3 years of post-graduation professional experience.
You have never had a CERN fellow or graduate contract before.

Additional Information :

Job closing date: 06.02.2026 at 23:59 CET.

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-May-2026

Job reference: SY-STI-BMIGRAP

Field of work: Applied Physics

Benchmark job: 200140 - Applied Physicist

Global Benefits

A monthly stipend between 6372-7004 Swiss Francs per month (tax free) depending on your degree.
30 days of paid leave per year plus 2 weeks annual closure.
Coverage by CERNs 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.

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Employment Type :

Full-time