Accelerator Physicist

Physics, Data Science, Software.

About us

At CERN, the European Organisation for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. 

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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.

What we offer

  • A monthly net stipend of either 6,372 or 7,004 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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Job ID Number: BE-ABP-LNO-2026-138-GRAP
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Shortlisted
  • Deadline
    September 9th, 2026
  • Starting
    November 2026
  • Salary
    6,372 - 7,004 Swiss Francs per month (net of tax) + benefits
  • Degree required
    Master's/PhD
  • Location
    Geneva (Switzerland)
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Disciplines Accepted...
  • Data Science
  • Physics
  • Software/Systems
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