Low-level RF-Engineer

The Paul Scherrer Institute PSI is the largest research institute for natural and engineering sciences within Switzerland. We perform cutting-edge research in the fields of future technologies, energy and climate, health innovation and fundamentals of nature. By performing fundamental and applied research, we work on sustainable solutions for major challenges facing society, science and economy. PSI is committed to the training of future generations. Therefore, about one quarter of our staff are post-docs, post-graduates or apprentices. Altogether, PSI employs 2300 people.

For our LLRF Group in the Section Radio Frequency we are looking for a

Low-level RF-Engineer

31.08.2026

• Engineering / Laboratory
• 8417-29178
• 100%

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Your tasks

• Design and develop advanced control algorithms for multi-bunch operation in travelling-wave RF structures, with a focus on 4-bunch schemes for FCC-ee and experimental validation using 2-bunch configurations at SwissFEL
• Perform modeling and simulation of RF systems and beam acceleration to support control strategy development and operational studies
• Create automation tools to efficiently configure, optimize, and stabilize multi-bunch beam operation
• Contribute to the systems engineering of LLRF systems, translating user requirements into integrated hardware, firmware, and software architecture
• Support and gain hands-on experience in the operation and optimization of the SwissFEL LLRF system

Your profile

• MSc or PhD in Physics, Electrical Engineering, Computer Science, or a related field
• Strong background in feedback control theory and automation of complex systems
• Foundational knowledge of beam dynamics in linear accelerators
• Experience with LLRF systems or EPICS-based control systems is an asset
• Proficiency in Linux environments and programming (e.g., Python, MATLAB); experience with FPGA firmware is a plus
• Familiarity with system and/or software engineering practices is advantageous
• Demonstrated problem-solving mindset, hands-on approach, and excellent command of English

We offer

Our institution is based on an interdisciplinary, innovative and dynamic collaboration. You will profit from a systematic training on the job, in addition to personal development possibilities and our pronounced vocational training culture. If you wish to optimally combine work and family life or other personal interests, we are able to support you with our modern employment conditions and the on-site infrastructure.

The employment contract will initially be limited to 2 years, with a possible extension for a third year.

For further information, please contact Zheqiao Geng, phone +41 56 310 40 19.

Please submit your application online by 29. September 2026 for the position as a Low-level RF Engineer (Index-Nr. 8417-29178).

Paul Scherrer Institute, People & Culture, Mikela Szolansky, 5232 Villigen PSI, Switzerland