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Full job description

You will contribute to a proposal covering the layout, optics design, performance optimisation and evaluation of a potential future collider at CERN, the Linear Collider Facility @ 380 GeV (LCF380).

Your responsibilities

• Work on various design aspects of LCF380.
• Perform beam dynamics simulations to demonstrate its performance.
• Investigate the interaction regions (optics design, layout, for a possible dual beam delivery system) and the damping rings to optimise performance.
• Contribute to writing the summary design report.

Your profile

• Knowledge and understanding of lepton beam dynamics and optics design, including synchrotron radiation.
• Knowledge and experience in the setup, analysis and interpretation of particle tracking studies.
• Analysis of experimental data.

Skills

• Accelerator physics codes like MAD, Xsuite, ELEGANT, pyAT, GuineaPig, etc.
• Running simulations on an HPC.
• Good presentation skills.
• 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 Physics (or a related field) and have either:

• a Master's 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: 09.09.2026 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: Hybrid

Target start date: 01-November-2026

Job reference: BE-ABP-LNO-2026-138-GRAP

Field of work: Applied Physics

Benchmark job: 200140 - Applied Physicist

Global Benefits

• A monthly net stipend of either 6372 or 7004 Swiss Francs per month 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.

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