Magnet Prototyping Engineer

WHO WE ARE At Proxima Fusion, we're driven by a bold mission – to redefine the future of sustainable energy. Our unique concept, built upon the groundbreaking W7-X stellarator and the latest advances in technology, paves the way for commercially viable fusion power plants. What’s more, our work in stellarator optimization, powered by cutting-edge computation and machine learning, is propelling us into uncharted territories of fusion technology. New higher performance design points are unlocked by high temperature superconducting magnets. To fully grasp this huge opportunity, we’re building a team of extremely dedicated and passionate people who come together driving something extraordinary, radically transforming technology in the world. WHY JOIN PROXIMA FUSION - You will get to work on some of the most complex tech challenges to bring abundant, safe, clean energy to the world. - You'll get to join and learn from an exceptional selection of accomplished and driven individuals. - Do your life’s best work and enjoy the journey. - Get to show that big things are possible in Europe when you assemble the best talent. YOUR IMPACT You will contribute to the development of joint and cable technologies for Proxima’s magnet programme, with a strong focus on hands-on prototyping, manufacturing, and testing at our labs based in Villigen and Böttstein. You will play a key role in the design, fabrication, and iterative improvement of joints, cables, and other related components for magnet prototypes and future HTS magnets. You will operate at the interface between mechanical, electrical, and experimental domains, contributing to rapid prototyping cycles and integration of components into experimental setups. WHAT YOU WILL DO - Design and develop mechanical and electro-mechanical components related to joint and busbar systems - Design and implement early concepts of superconducting cables - Build, assemble, and test prototypes in close collaboration with the workshop - Support manufacturing and integration of components into magnet prototypes and experimental setups - Iterate on designs based on test results, measurements, and experimental feedback - Contribute to the development of manufacturing processes and tooling for joint fabrication - Participate in experimental activities, including setup, instrumentation, and data acquisition - Collaborate with engineers and technicians across mechanical, electrical, and materials domains WHO YOU ARE - Degree in Mechanical Engineering, Mechatronics, Electrical Engineering, or related field - Strong hands-on experience in prototyping, manufacturing, or experimental work - Experience with CAD tools (ideally CATIA; experience with NX, SolidWorks, or Onshape also relevant) - Good understanding of electrical or electromagnetic systems (e.g. current flow, resistive losses, basic circuit behavior) - Comfortable working in a workshop and laboratory environment - Pragmatic, solution-oriented mindset with ability to iterate quickly - Strong team player, able to work across disciplines NICE TO HAVE - Experience with electromechanical systems, sensors, or instrumentation - Familiarity with manufacturing processes (machining, assembly, soldering, etc.) - Experience in R&D or prototype development environments - Exposure to thermal, electrical, or materials characterization INTERVIEW PROCESS - Recruiter Interview (30-60 min) - Technical Screening (30 min) - Technical Panel (2x60 min) - Practical On-site - CEO call (30 min) *This role sits at L2 of our framework, please inquire during the recruitment process for further information. At Proxima Fusion, our mission is bold: making limitless clean energy a reality. To get there, we need a high-performing, diverse team that brings different perspectives, challenges assumptions, and builds together with purpose. We know that diversity of thought and experience leads to better ideas, stronger execution, and a more resilient team. We don’t look at how you identify, what