Applied Physicist

Job Posting Organization:
CERN, the European Organization for Nuclear Research, is at the forefront of scientific research and technological innovation. Established in 1954, CERN has grown to become one of the world's largest and most respected centers for scientific research, employing thousands of scientists, engineers, and support staff from over 100 countries. The organization is dedicated to exploring the fundamental structure of the universe through high-energy particle physics, and it operates the largest particle physics laboratory in the world. CERN's mission is to push the boundaries of knowledge and technology, fostering an environment of collaboration and innovation among diverse professionals. The organization values diversity and inclusion, recognizing that a wide range of perspectives enhances creativity and problem-solving capabilities. CERN's commitment to scientific excellence and its collaborative spirit make it a unique place for researchers and professionals alike.

Job Overview:
As an Applied Physicist at CERN, you will engage in strategic research and development activities related to the RICH Detector and the LHCb RICH Upgrade project. This role involves conducting studies on innovative single-photon detectors, such as Silicon Photomultipliers (SiPMs), particularly at cryogenic temperatures. You will be responsible for calibrating readout electronics and measuring prototype optics for RICH detectors. The position requires a blend of hands-on experimental work, including beam tests and laboratory measurements using picosecond pulsed laser illumination, alongside data analysis and simulation tasks. You will also contribute to the development of new detector designs and solutions, making this a multifaceted role that combines practical experimentation with theoretical analysis.

Duties and Responsibilities:
Your primary responsibilities will include actively participating in the commissioning of the LHCb RICH detector and performing electronics calibrations for the detector upgrade during the Long Shutdown 3 (LS3). You will lead the qualification processes for prototype optics and RICH mirrors, ensuring they meet the necessary specifications for future upgrades. Collaboration is key, as you will work alongside colleagues during beam tests and laboratory characterizations of single-photon detector prototypes, which will involve extensive data analysis. Additionally, you will engage in module integration studies and system tests of SiPM sensors at cryogenic temperatures, contributing to the overall success of the project.

Required Qualifications:
To qualify for this position, you must be a national of a CERN Member or Associate Member State and possess a professional background in Physics or a related field. You should have either a Master's degree accompanied by 2 to 6 years of post-graduation professional experience or a PhD with no more than 3 years of post-graduation professional experience. It is essential that you have not previously held a CERN fellow or graduate contract, ensuring that this opportunity is available for new candidates.

Educational Background:
The educational requirements for this position include a Master's degree in Physics or a closely related field, or a PhD in the same areas. The educational background should provide a solid foundation in applied physics principles, particularly those relevant to high-energy physics experiments and detector technologies.

Experience:
Candidates should demonstrate substantial experience in applied physics, particularly in the context of high-energy physics (HEP) experiments and RICH detector designs. Experience with RICH detector tests, both in laboratory settings and during test beam experiments, is crucial. Familiarity with readout electronics, data acquisition (DAQ) systems, and laboratory infrastructure is also required to ensure effective performance in this role.

Languages:
Proficiency in spoken and written English is mandatory, as it is the primary language of communication at CERN. Additionally, a commitment to learning French is encouraged, as it can enhance collaboration within the international team and the local community.

Additional Notes:
This position is fully onsite and involves a contract duration of 24 months, with the possibility of extension up to a maximum of 36 months. The working hours are set at 40 hours per week, and the role may require work in radiation areas, interventions in underground installations, and participation in stand-by duties, including night shifts, Sundays, and official holidays as needed. Due to the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed. The job reference for this position is EP-LCB-2026-49-GRAP, and it falls under the field of Applied Physics. The compensation includes a monthly stipend ranging from 6372 to 7004 Swiss Francs, which is tax-free, along with 30 days of paid leave per year, comprehensive health insurance coverage, family allowances, and a relocation package depending on individual circumstances.