Experimental Engineer
Transmutex
Posted on Sep 30, 2025
Summary
Join us as an Experimental Engineer and apply your expertise to develop innovative solutions that meet the challenges of advanced nuclear technologies.
About us
Transmutex is a Geneva-based start-up founded in 2019. We aim at reinventing nuclear energy by designing START to optimize the transmutation of long-lived nuclear waste. The innovative combination of particle accelerators and fuel, based on existing long-lived radioactive waste, will let us develop energy process that will be intrinsically safe, will reduce the stockpile of long-lived waste, is resistant to proliferation, and will be cost competitive.
About the Role
We are looking for an Experimental Engineer to support the creation and operation of a new research laboratory. The role involves both hands-on laboratory work and the coordination of activities related to the installation and use of experimental facilities. The successful candidate will contribute to the set-up of laboratory infrastructure and equipment, take part in the execution of experiments, and support the characterization of materials exposed to demanding environments. The position combines practical experimental work, technical problem-solving, and organizational responsibilities. It offers the opportunity to work closely with researchers, facility providers, and external partners in building and running a laboratory that enables high-quality studies of materials performance.
Main Responsibilities
- Participate in the design, installation, and commissioning of laboratory equipment and infrastructure.
- Perform experimental work in the laboratory, including preparation, execution, and monitoring of tests.
- Support the characterization of materials after testing, using standard laboratory techniques and analysis methods.
- Develop and maintain operating procedures, safety protocols, and maintenance schedules.
- Coordinate laboratory logistics, consumables, and day-to-day operations.
- Act as an interface with hosting institutions, safety services, and external suppliers.
- Contribute to reporting and documentation of experimental activities and results.
Qualifications and Professional achievements
- Master’s degree (or equivalent) in Mechanical Engineering, Materials Science, Chemical Engineering, Nuclear Engineering, or a related technical discipline.
- Proven experience with experimental laboratory work (set-up, operation, or maintenance of test systems) with liquid metals.
- Familiarity with materials testing and characterization methods.
- Good knowledge of laboratory safety practices and standards.
- Good organizational and communication skills.
- Proficiency in German required (spoken and written).
Additionally, it will be an advantage if you have:
- Familiarity with fast reactors, Accelerator Driven System (ADS) technologies, or nuclear structural materials.
- Experience with liquid metal thermal-hydraulics systems
- Solid knowledge of material behaviour under extreme environments, such as irradiation and liquid metal exposure.
- Hands-on experience with advanced characterization techniques (e.g., SEM, TEM, mechanical testing) and post-irradiation examination (PIE).
Terms And Conditions
Start date: As soon as possible
Location: Villigen, AG, Switzerland - with required short-term stays at Transmutex headquarters in Geneva.
Contract: Full-time, permanent employment contract
Package: We offer competitive remuneration and social security, accident/disability insurance and pension plans; one day per week work from home, as well as five weeks paid vacation.
Recruitment process:
One to two technical interview.s with the Hiring manager and other Transmutex team members; Interview with HR for retained candidates, final interview with Management for shortlisted candidates.
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