Experimental Engineer

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.

Full time