Magnet Prototyping Engineer

Proxima Fusion in Zürich seeks a Mid-level Magnet Prototyping Engineer to support development of joint and cable technologies for magnet prototypes. The role involves hands-on prototyping, manufacturing, and testing at labs in Villigen and Böttstein, focusing on mechanical and electro-mechanical components for future high-temperature superconducting magnets.

This role supports the development of joint and cable technologies for Proxima’s magnet programme, focusing on prototyping, manufacturing, and testing at labs in Villigen and Böttstein. It plays a central part in designing, fabricating, and refining components for magnet prototypes and future HTS magnets, operating at the intersection of mechanical, electrical, and experimental engineering to enable rapid iteration and integration into test setups.

Responsibilities

• Design and develop mechanical and electro-mechanical parts for joint and busbar systems
• Create and test early-stage concepts for superconducting cables
• Construct, assemble, and evaluate prototypes in collaboration with the workshop team
• Assist in manufacturing and integrating components into magnet prototypes and experimental setups
• Refine designs based on test data, measurements, and feedback from experiments
• Help develop manufacturing methods and tooling for joint production
• Take part in experimental work, including setup, instrumentation, and data collection
• Work with engineers and technicians across mechanical, electrical, and materials disciplines

Requirements

• Degree in Mechanical Engineering, Mechatronics, Electrical Engineering, or a related field
• Proven hands-on experience in prototyping, manufacturing, or experimental work
• Experience using CAD tools, preferably CATIA; NX, SolidWorks, or Onshape are also acceptable
• Solid grasp of electrical or electromagnetic systems, including current flow, resistive losses, and basic circuit behavior
• Comfortable working in workshop and lab environments
• Practical, solution-focused mindset with the ability to iterate quickly
• Strong team player capable of collaborating across technical domains

Nice to have

• Experience with electromechanical systems, sensors, or instrumentation
• Familiarity with manufacturing techniques such as machining, assembly, or soldering
• Background in R&D or prototype development settings
• Exposure to thermal, electrical, or materials characterization methods

About the company

Proxima Fusion is committed to advancing sustainable energy through the W7-X stellarator and cutting-edge technology to enable commercially viable fusion power plants. The company leverages advanced computation and machine learning for stellarator optimization, focusing on high-temperature superconducting magnets. It builds a team of passionate, dedicated individuals to drive technological transformation and values diverse perspectives to foster innovation and resilience.

• Driven by a mission to redefine sustainable energy through fusion technology
• Uses advanced computation and machine learning for stellarator design optimization
• Builds a team of passionate, dedicated professionals committed to technological transformation
• Values diversity of thought and experience to generate better ideas and stronger execution