High Temperature Superconductors (HTSs) have the potential to revolutionize various industries, including energy, transportation and medical imaging. Besides, they are a key enabling technology in fusion energy, allowing generation of much higher magnetic fields compared to conventional conductors. With growing awareness of their benefits, the market is expanding as researchers and companies invest in developing innovative applications to harness their unique properties.

To follow this lead, Renaissance Fusion SAS is collaborating with the Laboratoire Hubert Curien (Université Jean Monnet, Saint Étienne) to study laser processing of HTS. This technology can improve their performance and change their characteristics.

We are looking for a highly motivated individual with M2 (or finishing it) to conduct the research in both facilities.

About us

Renaissance Fusion, founded in 2020 in Grenoble, is the first magnetic-confinement fusion startup in continental Europe, developing stellarator-based reactors with high-temperature superconducting magnets and liquid-metal shielding to deliver clean, steady fusion energy. It raised €32 million in Series A funding in December 2024 to accelerate groundbreaking energy innovations.

Our partner

The Laboratoire Hubert Curien (UMR 5516) is a joint research unit of the CNRS, University of Saint-Étienne, and the Institut d’Optique Graduate School, with around 90 researchers, 20 engineers, and over 100 PhDs/postdoc. Its research spans two main domains—optics/photonics & microwaves, and computer science/telecom/imaging—structured into teams like Micro/Nano-structuring, Radiation-Matter Interaction, Image Science & Computer Vision, Data Intelligence, Connected Intelligence, and Secure Embedded Systems.

Responsibilities

The successful candidate will study laser engraving of HTS using different laser sources. The effects of laser ablation on the various HTS layers will be characterized to evaluate their impact on the electrical properties. The candidate will conduct research at both Renaissance Fusion and Laboratoire Hubert Curien, with access to equipment at both institutions.

Main tasks

• Design and perform parametric studies
• Operation of cutting-edge laser processing setups (nanosecond, picosecond and femtosecond)
• Perform surface and electrical characterization of samples.
• Participate in result analysis and preparation of scientific reports.

Requirements

• Master degree in photonics, electrical engineering, physics, material science or related field.
• Fluent in English (C1)
• Be resolutive and having a problem-solving nature
• Ability to work independently
• Willingness to travel between Grenoble and Saint-Étienne.
• Previous experience in HTS, laser processing or high-tech laboratories is a plus.

Please submit your resume directly to:

• David.pallares@renfusion.eu
• xxx.sedao@univ-st-etienne.fr

At Renaissance Fusion, we value diversity and are an equal opportunity employer. We consider all qualified applicants equally for employment. We do not discriminate on the basis of origin; gender; morals, sexual orientation; sexual identity; age; marital status; pregnancy; genetic characteristics; actual or assumed membership or non-membership of an ethnic group, nation or race; political opinions; trade union or mutualist activities; religious beliefs; physical appearance; family name; place of residence; state of health; disability.