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 thousands of scientists, engineers, and support staff from over 100 countries, making it a hub for international collaboration in scientific research. The organization operates the world's largest particle physics laboratory and is home to the Large Hadron Collider (LHC), which is instrumental in advancing our understanding of the fundamental structure of the universe. CERN's mission is to uncover the fundamental constituents of matter and the forces that govern their interactions, contributing to the advancement of knowledge in physics and related fields.

Job Overview:
The position involves joining a specialized team focused on the design and integration of superconducting and resistive magnets for the muon collider project. This role is critical as the team explores advanced configurations that surpass current technologies, particularly in the realm of High-Temperature Superconductors (HTS). The primary goal is to achieve high energy efficiency while operating within a temperature range of 10K to 20K. The successful candidate will be responsible for contributing to the electromagnetic design and demonstration of magnets that are essential for the production, cooling, acceleration, and collision of muons. This includes a specific focus on solenoids used in the 6D and final cooling cells, which are vital components of the muon collider's operational framework.

Duties and Responsibilities:
The duties for this position include contributing to the design of superconducting and resistive magnets specifically for the cooling and acceleration chain of the muon collider. The candidate will review the current baseline and update the selection of magnet technologies based on performance metrics, cost considerations, and Technology Readiness Levels (TRL). Collaboration with technical teams is essential to derive and refine magnet specifications. The role also involves conducting analytical and numerical simulations using tools such as COMSOL and ANSYS to define performance limits and optimize magnet performance, particularly focusing on the solenoids of the 6D cooling channel. Additionally, the candidate will maintain a comprehensive catalogue of superconducting magnet parameters, options, and configurations, ensuring integration with the broader machine configuration while assessing mechanical and cryogenic constraints within the collider environment. The candidate will also assist in organizing magnet development activities across multiple task groups, ensuring effective collaboration and progress across the project.

Required Qualifications:
Candidates must possess experience in the conceptual and engineering design of magnets, with a solid understanding of electromagnetics, mechanics, and heat transfer principles. Knowledge of applied superconductivity and cryogenics is essential, along with a basic understanding of beam optics. The ability to utilize analytical and numerical simulation tools, such as COMSOL and ANSYS, is required, as well as familiarity with computer-aided design tools like CATIA. A willingness to learn new tools and technologies is also necessary. The candidate should demonstrate strong leadership skills, particularly in directing and supervising students and interns, and must exhibit an excellent team-working attitude, collaborating effectively with colleagues from diverse fields of applied physics and engineering.

Educational Background:
The position requires candidates to be nationals of a CERN Member or Associate Member State. A professional background in Engineering or Applied Physics (or a related field) is essential. Candidates 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 important that candidates have not previously held a CERN fellow or graduate contract.

Experience:
Candidates should have a proven track record in the conceptual and engineering design of magnets, with relevant experience in the field of applied physics or engineering. The required experience level varies based on educational background, with those holding a Master's degree expected to have 2 to 6 years of professional experience, while PhD holders should have up to 3 years of relevant experience post-graduation.

Languages:
Proficiency in spoken and written English or French is mandatory, with a commitment to learn the basics of the other language being highly desirable. This bilingual capability is essential for effective communication within the diverse international environment at CERN.

Additional Notes:
The contract duration for this position is 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 position is fully onsite. The target start date for this role is February 1, 202

• The job reference number is ATS-DO-2025-191-GRAP. The compensation package includes a monthly stipend ranging from 6287 to 6911 Swiss Francs (net of tax), comprehensive health coverage for the employee and their family, and membership in the CERN Pension Fund. Additional benefits may include an installation grant, family allowances, and travel expense reimbursements at the beginning and end of the contract. Employees are entitled to 30 days of paid leave per year, and opportunities for on-the-job training and formal training at CERN, as well as in-house language courses for English and/or French, are provided.