Cryogenics 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

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.