Cryogenic Systems Lead

Number of employees

113

Oxford, United Kingdom

Posted on: 2025-07-14

Category: energy

Apply now

Please let Proxima Fusion know you found this job on Work in Green. This will help us grow!

Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

Proxima Fusion is Europe's fastest-growing fusion company, building the first generation of stellarator fusion power plants.

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

Take ownership of the design and integration of the cryogenic cooling systems for Proxima’s net energy stellarator, Alpha. This role demands systems thinking, simulation and modelling skills, technical judgement, and the ability to make impactful design decisions. Your deep expertise in thermal analysis and cryogenic system design will be critical to integrate the advanced cooling systems required to realize Alpha within the ambitious Proxima timelines. .

WHAT YOU WILL DO

  • Architect and design the integrated cooling systems for the Alpha high temperature superconducting coils and wider cryogenic systems;

  • Evaluate high-level systems concepts, conducting trade studies between components within the wider context of the Alpha machine constraints;

  • Collaborate closely with the electromagnetic, mechanical and electrical engineers, magnet experts, and physicists both within the Alpha team and across Proxima.

  • Use first principles reasoning, simulation, tests and prototyping to detail and validate the design of the Alpha cryogenic system;

  • Identify and act as an expert customer for projects with external suppliers and partners to specify and co-design the Alpha cryogenic systems, covering both in-vacuum magnet cooling and the wider cryoplant system, with the highest quality and speed.

WHO YOU ARE

  • Team players who love challenges and are not afraid to experiment, take risks and learn from mistakes;

  • Experience in cryogenic system architecture design, commissioning, and operation within complex large-scale systems and facilities;

  • Proven track record in specifying and designing complex cryogenic cooling systems using both multi-physics and reduced-order modelling;

  • Experience validating complex cryogenic systems through a combination of simulations, testing, and prototyping;

  • Demonstrated ability to lead internal and external work packages within multidisciplinary technical teams in fast-paced, dynamic settings.

INTERVIEW PROCESS

  • Recruiter Interview (30-60 min)

  • Technical Screening (30 min)

  • Technical Panel (3x60 min)

  • CEO call (30 min)

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.

Similar climate jobs

These are some of our top picks for great climate jobs on Work in Green.

View all jobs
Zanskar logo
United States
Number of employees

70

Full time
Energy
Octopus Energy logo
United Kingdom
Octopus Energy logo
United Kingdom
Octopus Energy logo
Italy
Number of employees

4300

Full time
Energy
Octopus Energy logo
United Kingdom

89 Energy jobs at Proxima Fusion

Proxima Fusion is hiring FEA Analyst,Engineering Program Manager,Electrical/Electronics Engineer, and more.

View all jobs at Proxima Fusion
Proxima Fusion logo
Germany
Number of employees

113

Full time
Energy
Proxima Fusion logo
United Kingdom
Proxima Fusion logo
Germany
Proxima Fusion logo
Germany
Proxima Fusion logo
Germany
Number of employees

113

Full time
Energy