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 matter and materials, energy and environment and human health. 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 the Severe Accident Research Project we are looking for a

Postdoctoral Fellow for severe accident analysis

Apply online now

Your tasks

  • Analysis of severe accident scenarios in a non-electric nuclear reactor using MELCOR code; development of the input model, sensitivity analysis, and analysis of the results 
  • Analysis of liquid source term from a severe accident using MELCOR code 
  • Develop representation of liquid source term in severe accident analysis using thermodynamic calculations or results from them 
  • Presentation of research results in the project meetings, as peer-reviewed publications, conference participations and preparation of technical reports

Your profile

We are looking for a candidate with a PhD degree in Nuclear or Mechanical Engineering, physics, chemistry, or other natural sciences. The candidate should have a solid background in nuclear engineering, preferably in severe accident analysis. Experience with severe accident analysis codes, in particular MELCOR, would be beneficial. The candidate should be fluent in spoken and written English. German would be useful.

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. 

This position is limited to 2 years.

For further information please contact Terttaliisa Lind, email terttaliisa.lind@psi.ch, phone +41 56 310 2650.

Please submit your application online by 10 July 2025including a list of publications and references for the position as a postdoctoral fellow (index no. 4103-04).

Paul Scherrer Institut, Human Resources Management, Robin Schmid, 5232 Villigen PSI, Switzerland,