Theoretical Physicist (TH-SP-2026-68-LD)

theory; Genf; On-site; CHF 90,000 - 110,000; Full time

Benefits offered by this job

30 days of paid leave

CERN health insurance

Relocation package

Job summary

CERN is seeking a Theoretical Physicist to contribute to the understanding of fundamental particles and forces. The role involves significant research contributions, collaboration with other physicists, and participation in the organization’s scientific culture.

The ideal candidate will have a PhD in Theoretical Physics, proven research experience, and knowledge of particle physics. The position offers a competitive salary, 30 days of leave, and comprehensive health insurance.

Qualifications

• Demonstrated research activities leading to publications in peer-reviewed journals.
• Ability to contribute significantly to scientific work.
• Knowledge of particle physics and phenomenology.

Responsibilities

• Contribute to theoretical research in elementary particle physics.
• Participate in activities within the Theoretical Physics Department.
• Maintain contact with the wider scientific community.

Skills

Theoretical Physics

Computational physics

Mathematical physics

Problem-solving

Building relationships

Strategic thinking

Education

PhD or equivalent in Theoretical Physics

Job description

Theoretical Physicist (TH-SP-2026-68-LD)

At CERN, the European Organization 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. Find out more on http://home.cern.

Introduction

You will join the talent pool for Limited Duration research positions within the CERN Theoretical Physics Department, bringing together pre‑assessed and endorsed candidates for future hiring opportunities based on organisational needs. As an outstanding researcher in theoretical particle physics, you will contribute to the development of new theoretical ideas aimed at understanding the fundamental constituents and forces of nature, while ensuring their relevance to CERN’s experimental programme and taking full advantage of the unique environment of a large international laboratory. You will also contribute to CERN’s scientific culture through active participation in training programmes and the promotion of scientific events on site.

Functions

• 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 experimental physicists working at CERN.
• Taking part in CERN committees and study groups.
• Helping maintain continued contacts with the outside scientific community.

PhD or equivalent relevant experience in the field of Theoretical Physics or a related field.

Experience

• Demonstrated post‑doctoral research activities that have led to scientific publications in peer‑reviewed journals.
• Evidence of ability to make significant contributions to the work of the Organization.
• Knowledge and application of computational and mathematical physics.
• Knowledge and application of particle physics and phenomenology.
• Thorough knowledge of theoretical physics.
• Achieving results: delivering high‑quality work on time and fulfilling expectations.
• Solving problems: identifying, defining and assessing problems, and taking action to address them.
• Building relationships: understanding how individual differences bring added value to the Organization, promoting complementarities.
• Creating vision and strategic partnerships: ensuring alignment to overall strategy when revising unit goals and priorities in the event of changing circumstances.

Language skills – Spoken and written English or French, with a commitment to learn the other language.

Eligibility and closing date

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited‑duration contracts may apply for an indefinite position.

Working Hours: 40 hours per week
Job Flexibility: Fully Onsite
Job grade: 6‑7
Job reference: TH-SP-2026-68-LD
Field of work: Theoretical Physics
Benchmark Job Title: Theoretical Physicist

• A competitive salary (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 and eligibility for indefinite contract tenure.