Research Fellowship: Theoretical Physics

About the role

CERN offers a 24-month Research Fellowship in theoretical physics, fully onsite, starting ideally on 1 October 2027. Selected fellows join one of CERN's theoretical physics research groups to develop and lead their own research programme at the frontier of fundamental physics, in a highly collaborative and international environment. The fellowship is open to PhD holders in theoretical physics who wish to continue their research at CERN.

Key responsibilities

• Conduct research in theoretical physics and develop innovative theoretical approaches.
• Contribute to CERN's theoretical physics programme by advancing the interpretation of experimental results.
• Collaborate with theoretical and experimental physicists on research related to particle physics and fundamental interactions.
• Pursue your own research interests within the framework of the Fellowship.
• Take part in seminars, workshops, training activities and collaborative projects.

Required profile

• PhD in theoretical physics, or a scheduled PhD defence; PhD studies must be completed by the start of the appointment.
• No more than six years of research experience after the PhD.
• Strong background in theoretical particle physics or a closely related field, aligned with CERN's Theory Department activities.
• Spoken and written English or French, with a commitment to learn the other language.
• Not eligible: current CERN staff members.

Required skills

• Strong analytical and problem-solving skills in theoretical physics.
• Ability to work in large international teams and to present and discuss research results.
• Ability to work independently while contributing to shared research objectives.

What we offer

• A monthly net stipend of 7,004 or 7,425 Swiss Francs depending on degree and post-graduation experience.
• 30 days of paid leave per year plus 2 weeks annual closure.
• Health insurance covering yourself, spouse and children, and membership of the CERN Pension Fund.
• Family, child and infant monthly allowances, and a relocation package depending on circumstances.
• Option to extend the contract up to 36 months, and on-the-job and formal training including language classes.

To apply, submit an online application with a CV, a copy of your most relevant diploma, a statement of research interests and three recent letters of recommendation.