Applied Physicist

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 particle physics. CERN employs over 2,500 staff members and collaborates with thousands of scientists from around the world, representing more than 100 nationalities. The organization operates in multiple countries and is dedicated to pushing the frontiers of science and technology, fostering innovation and collaboration among a diverse range of professionals.

Job Overview:
The position involves working within the Gas Systems team in the EP-DT-GD department at CERN, focusing on the maintenance, operation, and development of gas systems for particle detectors. These systems are crucial for providing precise and stable gas mixtures necessary for the operation of detectors at CERN's Large Hadron Collider (LHC). The role requires active involvement in ensuring the continuous and stable operation of these systems, which includes participation in a stand-by duty service to provide technical support and rapid intervention during LHC runs. Additionally, the position entails contributing to research and development studies aimed at identifying eco-friendly replacements for greenhouse gases currently used in the gas systems. The candidate will also be responsible for validating the compatibility of new gases with existing components, ensuring that detector performance is not compromised. This role offers an opportunity to learn about gaseous detectors, gas systems, and gas recirculation, while also including team supervision responsibilities.

Duties and Responsibilities:

• Actively operate, maintain, and technically upgrade gas systems for LHC experiments to ensure their continuous and stable operation.
• Participate in the 'piquet' (stand-by duty) service, providing technical support and rapid intervention to maintain 24/7 operational reliability of gas systems during LHC runs.
• Contribute to R&D studies aimed at identifying replacements for greenhouse gases such as R134a and SF
• Operate test setups in the laboratory and at CERN facilities to simulate high-radiation backgrounds expected during the High-Luminosity LHC phase.
• Validate the compatibility of new eco-friendly gases with components used in gas system construction.
• Supervise team members and ensure effective collaboration within the Gas Systems team.
• Adapt to various working environments, including high-tech laboratories and underground experimental caverns, while managing changing priorities during LHC technical stops and data-taking periods.

Required Qualifications:
Candidates must be nationals of a CERN Member or Associate Member State and possess a professional background in Physics or Engineering (or a related field). They should have either a Master's degree with 2 to 6 years of post-graduation professional experience or a PhD with no more than 3 years of post-graduation professional experience. Additionally, candidates must not have previously held a CERN fellow or graduate contract.

Educational Background:
A Master's degree in Physics, Engineering, or a related field is required, with a preference for candidates who have completed their studies within the last 2 to 6 years. Alternatively, a PhD in a relevant field with a maximum of 3 years of post-graduation experience is acceptable.

Experience:
Candidates should have experience in operating different types of gaseous detectors, as well as in the design, operation, or maintenance of gas systems. Practical knowledge of industrial instrumentation and sensors is essential, along with experience in high-radiation environments and with eco-gases. The ability to perform technical interventions in experimental areas is also required.

Languages:
Fluency in spoken and written English or French is mandatory, with a commitment to learn the basics of the other language being a plus. Proficiency in both languages will enhance communication and collaboration within the team and with international colleagues.

Additional Notes:
The contract duration is 24 months, with a possible extension up to a maximum of 36 months. The position requires full-time commitment with 40 working hours per week. The target start date is October 1, 202

• The role includes participation in regular stand-by duty, which may involve working nights, Sundays, and official holidays, as well as working in radiation areas and underground installations. A valid driving license is required, and the selected candidate must obtain medical clearance due to occupational health risks associated with the position. The compensation includes a monthly stipend between 6372-7004 Swiss Francs (tax-free), 30 days of paid leave per year, comprehensive health insurance coverage, family allowances, and a relocation package depending on individual circumstances.