Theoretical Particle Physics Scientist

Job Posting Organization:
CERN, the European Organization for Nuclear Research, is a leading scientific research institution established in 195

• It is located in Geneva, Switzerland, and is known for its groundbreaking work in the field of particle physics. CERN operates with a mission to push the frontiers of science and technology, bringing together physicists and a diverse range of professionals from various fields including engineering, technical, scientific, and administrative. The organization employs thousands of staff members and collaborates with numerous countries around the world, making it a global hub for scientific research and innovation. Diversity and inclusion are core values at CERN, which has been central to its mission since its inception, fostering an environment where every contribution is valued and innovation thrives.

Job Overview:
As a Theoretical Particle Physics Scientist at CERN, you will participate in the organization’s scientific programmes, leveraging your established expertise and existing professional relationship with CERN. Your role will involve utilizing CERN’s advanced research facilities to contribute to theoretical particle physics activities. You will engage with CERN’s theoretical physics teams and contribute to various scientific programmes, bringing your experience and knowledge to enhance theoretical research and scientific collaboration. This position is ideal for individuals who are actively involved in research and advanced academic activities in theoretical particle physics and are interested in contributing to large-scale international scientific research initiatives.

Duties and Responsibilities:
Your primary responsibilities will include conducting scientific activities in theoretical particle physics within CERN’s research environment. You will contribute to theoretical particle physics programmes and related research activities, collaborating closely with CERN’s theoretical physics teams. Engaging in scientific discussions and contributing to the development of new theoretical frameworks will be key aspects of your role. You will also be expected to bring your analytical and theoretical expertise to the table, effectively contributing to advanced theoretical research and fostering scientific collaboration within the organization. Additionally, you will be involved in mentoring junior researchers and participating in outreach activities to promote CERN’s scientific mission.

Required Qualifications:
To qualify for this position, you must be an established and experienced scientist with a strong academic background in theoretical particle physics. You should have a proven track record of involvement in research and/or advanced academic activities in your field. An existing professional relationship with CERN or its theoretical physics programmes is essential. Furthermore, you should demonstrate strong analytical and theoretical expertise, with the ability to work effectively in an international and research-driven environment. Clear and professional communication skills in a scientific context are also required, particularly in English and/or French.

Educational Background:
Candidates must possess a PhD or equivalent in theoretical particle physics or a closely related field. A strong academic record and a demonstrated commitment to research excellence are essential. Additional qualifications such as postdoctoral experience or relevant publications in high-impact journals will be advantageous.

Experience:
The position requires a significant level of experience in theoretical particle physics, ideally with a minimum of several years of postdoctoral research experience. Candidates should have a strong publication record and a history of successful collaboration in international research projects. Experience working in large-scale scientific collaborations or research institutions will be highly regarded.

Languages:
Proficiency in English is mandatory, and knowledge of French is considered a valuable asset. Candidates should be able to communicate effectively in both languages, particularly in a scientific context, to engage with diverse teams and stakeholders at CERN.

Additional Notes:
The application deadline for this position is set for March 31, 2026, at 23:59 Geneva Time. The ideal start date for the successful candidate is July 1, 202

• The contract duration is up to 12 months, with the possibility of extension up to 24 months, depending on performance and project needs. The position requires full-time commitment with weekly working hours of 4
• A subsistence allowance ranging from 6683 to 9465 Swiss Francs per month (tax-free) will be provided, depending on experience. Additional benefits include 2.5 days of authorized absences per month, a family supplement to the subsistence allowance based on individual circumstances, and travel expenses to Geneva upon joining CERN. Candidates must remain employed by their home institute during their appointment at CERN and must be below the CERN retirement age by the application deadline.