CERN (European Organization for Nuclear Research) offers prestigious postdoctoral fellowships in theoretical physics through its Theoretical Physics Department (CERN-TH). These fellowships are fully funded positions located in Geneva, Switzerland, intended for early-career researchers. The 2025 fellowship cycle is open to both nationals of CERN Member/Associate States and, through a special programme, Non-Member States.
Fellowship Details & Benefits
- Duration: The fellowship appointment is for 24 months, with the possibility of extension up to 36 months depending on performance and project needs.
- Stipend: Monthly stipend ranges between 6,911 and 7,326 Swiss francs (net of tax) for the Fellow.
- Health & Social Benefits: Fellows receive comprehensive health insurance (sometimes covering dependents), membership in the CERN Pension Fund, installation/family/child allowances where applicable, travel allowances for relocation, and paid leave (approximately 2.5 days per month)
Eligibility Criteria
To be considered for the CERN Theoretical Physics Postdoc Fellowship:
- Must hold a PhD in theoretical physics, or have the defense scheduled by the time the position begins.
- Should have no more than 6 years of research experience after a PhD.
- CERN staff members are not eligible to apply.
- Applicants must be nationals of CERN Member or Associate Member States; there is also a Non-Member State Postdoc Programme for those outside those states.
Application Timeline & Process
- Deadline: For 2025-2026 theoretical physics fellowships, applications must be submitted by 3 November 2025, by 23:59 CET.
- Starting Date: Positions typically begin in autumn (October).
- Documents Required:
• Updated CV
• Academic transcripts and PhD certificate or proof of upcoming defense
• Statement of research interests/proposed project outline
• Three letters of recommendation (recent)
Advantages & Why Apply
- Top-level research environment: Work among world-leading theorists at CERN, with access to excellent computational, collaborative, and networking resources.
- Substantial financial support: Stipend, pension, insurance, travel, and family allowances make this a well-supported position.
- Career building: Prestigious affiliations, publications, collaborations, and exposure all boost postdoc career prospects.
Challenges & Considerations
- Very competitive: Many applicants globally for a limited number of fellowships.
- Strict eligibility: The 6-year post-PhD limit and the requirement that candidates not be current staff members mean some candidates will be ineligible.
- The cost of living in Switzerland is high; although the stipend is generous, some personal financial planning is necessary.
- Deadlines are fixed and early; late applications are not accepted.
Conclusion
The CERN Research Fellowship 2025 in Theoretical Physics is among the best fully funded postdoctoral opportunities for theoretical physicists looking for cutting-edge work in particle physics. It offers a generous stipend, wide benefits, strong affiliation, and opportunities for career growth. Prospective applicants should prepare early, ensure their eligibility, and submit a robust research proposal by the 3 November 2025 deadline.
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