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 administrative staff from over 100 countries, fostering a collaborative environment that encourages innovation and scientific discovery. The organization operates large-scale experiments and facilities, including the Large Hadron Collider, and is dedicated to pushing the frontiers of science and technology. Diversity and inclusion are core values at CERN, ensuring that every contribution is valued and that the organization continues to thrive in its mission to explore the fundamental nature of the universe.

Job Overview:
The position of Applied Physicist at CERN involves joining a multidisciplinary team that includes laser physicists, control engineers, and machine learning specialists. The primary focus of this role is to develop the automation layer for the TALISMAN project, which aims to automate laser ionization processes for the production of medically relevant radionuclides. The work encompasses both hands-on laboratory activities and the design, prototyping, and implementation of control algorithms and software. The successful candidate will engage directly with experimental hardware while applying modern algorithmic methods, contributing to tangible deliverables, and enhancing their technical and collaborative skills in a unique scientific environment. This role is critical in bridging applied physics, control systems, and computing, making it an exciting opportunity for those passionate about scientific innovation.

Duties and Responsibilities:
The duties and responsibilities of the Applied Physicist include automating critical steps in the ion beam production chain, such as laser preparation, beam-path alignment, ion beam optimization, and continuous monitoring, utilizing existing control interfaces. The candidate will engage with project stakeholders to define and refine project requirements throughout its lifecycle. Hands-on laboratory work with the laser setup alongside laser physicists and controls experts is essential. The role also involves researching and prototyping suitable control algorithms, drawing from classical control, optimal control, and machine learning methods as necessary. The chosen approaches must be engineered into automation and optimization modules that integrate with existing device control software, adhering to sound software engineering practices. Additionally, the candidate will drive solutions toward operational deployment, which includes validation and documentation of the processes.

Required Qualifications:
Candidates must possess initial experience working in an experimental laboratory or test-bench environment, particularly with optics, laser systems, or similar technologies. Practical experience with control and/or optimization algorithms, as well as machine learning methods, is essential. Proficiency in programming with Python, including familiarity with scientific and machine learning libraries, is required. The application of software engineering practices, including version control using Git, is also necessary. Advantageous qualifications include experience applying control algorithms and machine learning techniques to real-world systems, interfacing software with laboratory hardware (such as motors, cameras, and sensors), and prior exposure to LabVIEW. A solid grounding in physics or engineering, strong problem-solving skills, and the ability to work independently are critical for success in this role.

Educational Background:
The educational background required for this position includes a Bachelor's or Master's degree in Applied Physics, Computer Science, or a related field. Candidates must have graduated within the last two years and should not have previously held a CERN fellow or graduate contract. Applicants without a university degree are not eligible, and those with a PhD are also not eligible for this position.

Experience:
The level of experience needed for this position is a maximum of two years of professional experience since graduation. Candidates should have initial experience in an experimental laboratory or test-bench environment, particularly in areas related to optics and laser systems. Practical experience with control algorithms and machine learning methods is also required, along with programming experience in Python.

Languages:
The mandatory language for this position is English, both spoken and written. Candidates should also have a commitment to learn French, which is considered advantageous for effective communication within the team and organization.

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 August 1, 202

• The job reference number is BE-OP-PS-2026-139-GRAE. The position offers a monthly stipend ranging from 5266 to 5793 Swiss Francs, which is tax-free, depending on the candidate's degree. Additional benefits include 30 days of paid leave per year, comprehensive health insurance coverage for the employee and their family, and a relocation package based on individual circumstances. On-the-job and formal training, including language classes, will also be provided.