Magnet Prototyping Engineer

Proxima Fusion

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 Your work will be critical to the success of Alpha, Proxima’s scientific breakeven stellarator. Alpha relies on superconducting magnet systems that must operate at cryogenic temperatures to generate the magnetic fields required to confine plasma. As a Cryogenic Engineer, you will design, analyse and validate the cryogenic systems that enable these magnets to perform reliably. Applying expertise in thermal engineering, fluid dynamics, and cryogenic system design, you will develop advanced cooling solutions for a first of a kind fusion machine. This role requires a unique combination of advanced systems thinking, simulation and modelling skills, and hands-on technical judgement. You will move between analysis and implementation, turning complex designs into reliable cryogenic systems through testing, troubleshooting, and validation. WHAT YOU WILL DO * Specify, design, and analyze specific cooling system to meet cryogenic performance requirements, ensuring model accuracy is verified by testing protocols; * Provide hands-on technical leadership during the construction, commissioning, and long-term operation of the cryogenic plant and its subsystems; * Conduct performance analysis, testing, and troubleshooting of cryogenic systems; * Collaborate closely with electromagnetic, mechanical and electrical engineers, magnet experts, and physicists; * Identify and act as an expert customer for projects with external suppliers and partners to specify and co-design cryogenic systems with the highest quality and speed. WHO YOU ARE * A team player who enjoys tackling difficult challenges, exploring new approaches, and continuously improving through iteration ; * An engineer who combines strong modelling skills with hands-on experience building and operating cryogenic systems * Experience in cryogenic hardware design, commissioning, and operation; * Proven track record in specifying and designing cryogenic cooling systems using both multi-physics tools (ie Simcenter Amesim, Comsol) and reduced-order modelling approaches; * Experience validating cryogenic systems through a combination of simulations, testing, and prototyping; * Demonstrated ability to lead external work packages and manage procurement projects. INTERVIEW PROCESS * Recruiter Interview (30-60 min) * Technical Screening (30 min) * Technical Panel (3x60 min) * CEO call (30 min) This role sits at L2/L3 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 you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.

Proxima Fusion

WHO WE ARE Proxima Fusion is Europe’s fastest-growing fusion company and the continent’s best-funded fusion player, as well as the first spin-out from the Max Planck Institute for Plasma Physics (IPP). Backed by over €650M and powered by a growing team across Munich, Zurich, and Oxford, we are developing the hardware and infrastructure needed to deliver the world’s first commercial stellarator fusion power plant. Our concept advances the most mature fusion technology out there, the Wendelstein 7-X stellarator, through two next-generation machines: Alpha and Stellaris. Our work combines stellarator optimization, advanced computation, machine learning, and high-temperature superconducting magnets to unlock higher-performance designs that were previously out of reach. Turning these designs into a functioning fusion power plant requires excellence and ownership across every discipline, from physics and engineering to software, manufacturing, law, and business functions. TEAM AND ROLE * Architect a breakthrough energy technology – Play a defining role in designing and integrating the systems that will power the world’s first commercial stellarator fusion plant, influencing decisions that shape the future of clean energy. * Solve some of the most complex engineering challenges in fusion – Work across magnet design, HTS technology, manufacturing, structural integration, and controls, turning cutting-edge science into real hardware * Move fast and build what matters – Join a highly ambitious, multidisciplinary team that combines cutting-edge simulation with hands-on engineering, turning bold ideas into real hardware on the path to commercial fusion. 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 As a technician, you’ll be at the center of our operations in our workshops based in Villigen & Böttstein.. You will support the manufacturing and integration of magnet prototypes and experimental setups, contributing directly to the execution of key activities within Proxima’s magnet program. You will play a central role in workshop operations, enabling efficient prototype construction through hands-on work in machining, assembly, and installation. Your contribution will be critical in maintaining execution pace during periods of high activity. You will operate across a wide range of technical tasks, supporting both manufacturing and experimental work, and collaborating closely with engineers and other technicians to ensure successful delivery of prototype systems. WHAT YOU WILL DO * Perform hands-on workshop activities including machining, mechanical assembly, wiring, and installation of components * Build, test, and iterate on mechanical and electromechanical prototypes from early-stage designs * Support the manufacturing, integration, and troubleshooting of magnet prototype components and assemblies * Assist with the setup, fitting, adjustment, and modification of parts during prototype construction and testing * Contribute to the installation, operation, and modification of experimental setups and test rigs * Collaborate closely with engineers and technicians to enable rapid prototyping and iteration cycles * Maintain a clean, organized, and efficient workshop and lab environment WHO YOU ARE * Technical training in mechanical engineering, polymechanics, or a related field, with strong hands-on experience in workshop environments (machining, assembly, installation) * Comfortable working with tools, machines, and mechanical systems, including machining, wiring, mechanical assembly, and basic test/calibration equipment * Comfortable reading drawings and technical documentation * Detail-oriented and safety-conscious, with a strong commitment to quality and precision * Practical, hands-on problem solver with strong craftsmanship; able to work independently and collaboratively * Reliable and proactive, with a solution-oriented mindset and strong sense of ownership * Adaptable and flexible; able to work across a variety of tasks in fast-paced, evolving technical or R&D environments * Strong team player with good communication skills; able to collaborate closely with engineers and technicians; good English required (German is a plus) NICE TO HAVE * Experience in welding * Experience in prototype manufacturing or R&D environments * Familiarity with machining processes (CNC and/or manual) * Experience with mechanical installation and system integration * Experience with vacuum technology INTERVIEW PROCESS * Recruiter Interview (30-60 min) * Technical Screening (30 min) * Practical On-site *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 you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.

Proxima Fusion

WHO WE ARE Proxima Fusion is Europe’s fastest-growing fusion company and the continent’s best-funded fusion player, as well as the first spin-out from the Max Planck Institute for Plasma Physics (IPP). Backed by over €650M and powered by a growing team across Munich, Zurich, and Oxford, we are developing the hardware and infrastructure needed to deliver the world’s first commercial stellarator fusion power plant. Our concept advances the most mature fusion technology out there, the Wendelstein 7-X stellarator, through two next-generation machines: Alpha and Stellaris. Our work combines stellarator optimization, advanced computation, machine learning, and high-temperature superconducting magnets to unlock higher-performance designs that were previously out of reach. Turning these designs into a functioning fusion power plant requires excellence and ownership across every discipline, from physics and engineering to software, manufacturing, law, and business functions. TEAM AND ROLE * Architect a breakthrough energy technology – Play a defining role in designing and integrating the systems that will power the world’s first commercial stellarator fusion plant, influencing decisions that shape the future of clean energy. * Solve some of the most complex engineering challenges in fusion – Work across magnet design, HTS technology, manufacturing, structural integration, and controls, turning cutting-edge science into real hardware * Move fast and build what matters – Join a highly ambitious, multidisciplinary team that combines cutting-edge simulation with hands-on engineering, turning bold ideas into real hardware on the path to commercial fusion. 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 We are looking for an Electrical Technician to support our R&D activities across our sites in Villigen and Böttstein, Aargau. You will be responsible for developing electrical infrastructure and executing electrical installation, maintenance and troubleshooting tasks for our R&D facilities & experiments. Your work will directly enable our teams to build, test, and iterate faster. WHAT YOU WILL DO 1. Experimental Support You will help connect our experiments to their measurement and control systems. * Instrumentation Wiring: Assemble control panels, junction boxes and cabinets. Wire sensors, heaters, instrumentation, and related electrical interfaces. * System Integration: Support integration of power supplies, control panels, acquisition systems, and test equipment from an electrical perspective. * Commissioning Support: Assist with electrical checks, verification, and commissioning of experimental setups. * Troubleshooting: Diagnose and repair electrical faults, component failures, and other problems affecting experiments. 2. Electrical Infrastructure You will support the definition and upgrade of electrical infrastructure for our R&D program * Infrastructure Development: Procure and coordinate or execute the installation of power distribution equipment for new experiments, R&D and manufacturing equipment. * Electrical Connection: Power and connect our experimental setups, prototype rigs, and manufacturing equipment. * Installation Oversight: Oversee electrical interventions by external contractors 3. Safety and Quality Reliable operation depends on fast diagnosis and safe maintenance of electrical systems. * Safety & Compliance: Ensure installations and modifications are safe and compliant with relevant norms, regulations and internal procedures. * Maintenance: Perform preventive and corrective maintenance on electrical infrastructure, test hardware, and support systems. * Quality of Execution: Ensure that installations are neat, maintainable, and consistent with industrial norms. Maintain a safe, functional, and organized electrical environment WHO YOU ARE We are looking for a qualified Electrician who is safety-conscious, deeply practical, and enjoys making technical systems work reliably. * Background: Training and practical experience as an Electrician, Electrical Technician, or similar. * Qualification: Elektroinstallateur EFZ (Swiss vocational diploma), or equivalent qualification * Language Skills: Fluent English * Safety Mindset: Good knowledge of safe electrical working practices and regulations. * Technical Capability: Comfortable developing electrical infrastructure, producing and reading electrical diagrams, sizing cables and protection devices, performing modifications, and troubleshooting real systems. * Adaptability: Comfortable working in a dynamic R&D environment where setups evolve quickly and where engineers, scientists, and technicians collaborate closely. Nice to have * Qualified to act as the technically responsible person (fachkundige Person) under the Swiss NIV: e.g. Elektro-Projektleiter mit eidg. Fachausweis, eidg. dipl. Elektroinstallateur, Techniker HF Elektrotechnik, or equivalent * German language skills * Driving license valid in Switzerland * Experience in R&D environments * Experience drawing and updating Single-Line Diagrams (SLDs) and developing power distribution networks * Familiarity with ECAD software * Experience with power supplies, low-voltage industrial systems, or control cabinets * Experience with commissioning complex technical systems * VEFK designation for electrical work in Germany INTERVIEW PROCESS * Recruiter Interview (30-60 min) * Technical Screening (30 min) * Technical Panel (3x60 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 you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.