Engineer, Process 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.

PSI is collaborating with an industrial partner to build, commission, and run a pilot‑scale research plant for the production of sustainable aviation fuel (SAF).

For the Energy System Integration Group in the Laboratory of Energy Technologies and Innovation (LTI) we are looking for an Engineer (80‑100%).

Final date to receive applications: 05.06.2026.

• Commissioning activities:
  Documentation, checking equipment functions, troubleshooting and manual tasks (mechanical, electrical, process) depending on qualifications.
• Safely operate and monitor a pilot‑scale research plant comprising reactors, distillation units, and other chemical processing equipment.
• Operations preparation:
  Participating in trainings. Helping with writing and refining SOPs and other documentation.
• Collect and prepare samples for laboratory analysis.
• Trend analysis and troubleshooting.
• Work closely with process engineers, chemists, and other team members to execute experimental plans and scale‑up activities.
• Communicate effectively with team members across shifts to ensure smooth transitions and continuity of operations.

• Degree FH/University in a relevant field (engineering, chemistry, or similar) or vocational training related to chemical plants.
• Ability and availability to work in shifts, including nights and weekends.
• Knowledge in operation, commissioning, or design of chemical plants desired.
• Experience in safe operation with regard to high pressure and flammable media desirable.
• Commitment to maintaining a high standard of safety and quality in all aspects of the job.
• Proficiency in English. Knowledge of German desirable.
• Physical ability to perform manual labor, including lifting, standing, and working in various environmental conditions.

Our institution is based on interdisciplinary, innovative, and dynamic collaboration. You will profit from systematic training on the job, personal development possibilities, and a pronounced vocational training culture. We support optimal work–family balance with modern employment conditions and on‑site infrastructure.

This is a fixed‑term position. The employment contract will (initially) be limited to 1 year.

For further information, please contact Marco Ranocchiari, phone .

Please submit your application online by 05.06.2026 for the position as an Engineer (80-100%) (Index‑. ).

Paul Scherrer Institute, Human Resources Management, Luca Simen, 5232 Villigen PSI, Switzerland