Theoretical Physicist

Switzerland flag Geneva, Switzerland TH-SP-2025-60-LD Ideal start date: 01/11/2025
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Before 31/12/2025 at 23:59 (Geneva Time)

What you'll do

If selected from this pool, you will carry out research in any of the areas of theoretical particle physics traditionally covered at CERN. Your work will focus on developing new theoretical ideas aimed at understanding the fundamental constituents and forces of nature, and exploring their relevance for CERN’s experimental programme. You will benefit from the stimulating environment of a large laboratory, interacting closely with experimental teams and the wider scientific community. You will also contribute to CERN’s scientific culture through participation in training activities and the promotion of scientific events on site.

Your responsibilities

  • Making significant contributions to theoretical research related to elementary particle physics;
  • Participating in and initiating a large variety of activities within the Theoretical Physics Department and possibly in collaboration with the experimental physicists working at CERN;
  • Taking part in CERN committees and study groups;
  • Helping maintain continued contacts with the outside scientific community.

Still here? Let's make a quick check about

Your profile

  • PhD or equivalent relevant experience in the field of Theoretical Physics or a related field.
  • Demonstrated post-doctoral research activities which have led to scientific publications in peer-reviewed journals.
  • Evidence of ability to make significant contributions to the work of the Organization.

Your skills

  • Knowledge and application of computational and mathematical physics.
  • Knowledge and application of particle physics, phenomenology.
  • Thorough knowledge of theoretical physics.
  • Achieving Results. Solving Problems. Building Relationships. Creating Vision and Strategic Partnerships.
Ideal start date: 01/11/2025
Contract duration: 60
Grade range: 6
Benchmark job: 100030 - Theoretical Physicist
Job flexibility: N/A

Global Benefits at CERN

  • A minimum entry-salary of 9113 Swiss Francs per month (tax free), increasing in line with your years of relevant experience.
  • 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, removal, travel expenses) depending on your individual circumstances.
  • Possibility to extend your contract up to 8 years + eligibility for indefinite contract tenure.

Let's get you ready

Be sure to meet the eligibility criteria

  • 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

The TH department is a center of excellence in theoretical high-energy physics, supporting CERN's experimental programme and fostering global collaboration and education in fundamental research areas.

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!


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