Careers

About the role

We are seeking a Numerical Modeling Engineer to advance the design and performance of our electromagnetic systems through high-fidelity, physics-based simulations. You will develop robust numerical frameworks that combine commercial multiphysics tools with internally developed models, enabling fast and reliable engineering decisions. Your work will focus on modelling electromagnetic, thermal, and transient multiphysics behaviour to drive design optimization for conductors, coils, and protection systems. You will join a team supervised by a Senior Engineer and advised by colleagues who designed some of the highest-performance tokamaks in the world. We are headquartered in London and Rome but will consider remote working for talented candidates.

• You will develop predictive models across steady-state and transient regimes.
• Electromagnetic Simulation: Analyze magnet systems to evaluate current distribution, inductance, AC losses, and nonlinear magnetic properties.
• Thermal Modeling: Simulate heat generation, conduction, and cryogenic cooling performance under realistic operational conditions.
• Multiphysics Build and validate coupled FE models to capture transient effects such as current redistribution and localized heating.
• Instability Modeling: Implement and validate numerical frameworks to simulate quench initiation, propagation, and protection strategies.
• Collaborate with design teams to validate models and integrate insights into system development

Desirable Qualifications

• Degree (MSc or PhD) in Mechanical Engineering, Applied Physics, Computational Engineering, or a related field.
• Proven experience in multiphysics and transient simulation, particularly electromagnetic–thermal coupling.
• Proficiency in at least one scientific programming language (Python, MATLAB, C++, or similar), with interest in developing internal modeling tools and workflows.
• Hands-on experience with electromagnetic FEM modeling using COMSOL or equivalent commercial multiphysics platforms.
• Experience in thermal modeling and heat transfer in complex systems.
• Excellent analytical skills and physical intuition, with the ability to connect simulation outcomes to system-level design and performance.

Our Principles

• Mission first. Abundant clean energy matters more than anyone's ego. Plans change and setbacks happen; we need people who are resilient, agile and comfortable in discomfort.
• We challenge, then commit. Internally, we value rigorous intellectual honesty, respectfully communicated. Once a decision is made, we align completely and execute as one.
• Progress over perfection. Good enough for today beats perfect for 2040.
• Act like an owner, because you are one. You will get real ownership of problems, decisions and outcomes from day one, reflected in meaningful equity.

This is the place for you if you want to be challenged and to challenge, want to be judged on performance rather than the performative, and are happy to pick up whatever the mission needs next. Our colleagues keep a critical eye on decisions, want to support one another and are adaptable.

We welcome applications from every background – we know that different perspectives are critical to solving the problems that nobody has ever solved.

About the role

We are seeking a skilled Mechanical Engineer to lead detailed design and advanced simulation work. You will join a team supervised by a Senior Engineer and advised by colleagues who designed some of the highest-performance tokamaks in the world. The role focuses on creating high-fidelity CAD models, performing structural finite element analysis (FEA), and conducting electromagnetic modelling to support innovative product development for extreme environments. We are headquartered in London and Rome but will consider remote working for talented candidates.

• Perform 3D CAD design and detailed modelling of mechanical components and assemblies using industry-standard tools like Fusion360
• Carry out thermal and structural analysis and assessment of mechanical designs, providing design input and implementing recommended design improvements.
• Execute electromagnetic modelling and simulation using tools like COMSOL Multiphysics.
• Optimize designs based on simulation results to meet safety, performance, reliability, and manufacturability targets.
• Collaborate with other engineers (electrical, systems, manufacturing) to develop integrated designs.
• Work with external suppliers and collaborators to assist and guide the development and manufacture of the components and systems that will come together
• Prepare technical reports, documentation, and presentations of analysis results.

Desirable Qualifications

• Degree (MSc or PhD) in Mechanical Engineering, Applied Physics, Computational Engineering, or a related field.
• 1-3+ years of relevant experience, ideally in industries involving magnetic systems, actuators, motors, sensors, or high-precision equipment.
• Experience in designing and delivering the conceptual and detailed design of mechanical, structural, thermal or electro-mechanical equipments
• Understanding of mechanical engineering fundamentals, materials selection, and tolerance analysis
• Familiarity with multiphysics simulation environments.
• Excellent problem-solving skills and attention to detail.
• Ability to work independently and in a small team

Our Principles

• Mission first. Abundant clean energy matters more than anyone's ego. Plans change and setbacks happen; we need people who are resilient, agile and comfortable in discomfort.
• We challenge, then commit. Internally, we value rigorous intellectual honesty, respectfully communicated. Once a decision is made, we align completely and execute as one.
• Progress over perfection. Good enough for today beats perfect for 2040.
• Act like an owner, because you are one. You will get real ownership of problems, decisions and outcomes from day one, reflected in meaningful equity.

This is the place for you if you want to be challenged and to challenge, want to be judged on performance rather than the performative, and are happy to pick up whatever the mission needs next. Our colleagues keep a critical eye on decisions, want to support one another and are adaptable.

We welcome applications from every background – we know that different perspectives are critical to solving the problems that nobody has ever solved.

About the role

We are seeking a scientist to join our team as we refine the design of our demonstration device. You will join at a time when the team is still small and growing fast, giving a large say in the future of this project. You will have a deep understanding of tokamak plasma physics and be prepared to work on various questions of SOL physics in NT and divertor modelling to inform engineering design choices. We are headquartered in London and Rome but open to remote working with expert talent.

Our Principles

• Mission first. Abundant clean energy matters more than anyone's ego. Plans change and setbacks happen; we need people who are resilient, agile and comfortable in discomfort.
• We challenge, then commit. Internally, we value rigorous intellectual honesty, respectfully communicated. Once a decision is made, we align completely and execute as one.
• Progress over perfection. Good enough for today beats perfect for 2040.
• Act like an owner, because you are one. You will get real ownership of problems, decisions and outcomes from day one, reflected in meaningful equity.

This is the place for you if you want to be challenged and to challenge, want to be judged on performance rather than the performative, and are happy to pick up whatever the mission needs next. Our colleagues keep a critical eye on decisions, want to support one another and are adaptable.

We welcome applications from every background – we know that different perspectives are critical to solving the problems that nobody has ever solved.

About the role

We are seeking a scientist to join our team as we refine the design of our demonstration device. You will join at a time when the team is still small and growing fast, giving a large say in the future of this project. You will have a deep understanding of tokamak plasma physics and be prepared to work on various questions of disruption modelling, mitigation strategies and fuelling to inform engineering design choices. We are headquartered in London and Rome but open to remote working with expert talent.

Our Principles

• Mission first. Abundant clean energy matters more than anyone's ego. Plans change and setbacks happen; we need people who are resilient, agile and comfortable in discomfort.
• We challenge, then commit. Internally, we value rigorous intellectual honesty, respectfully communicated. Once a decision is made, we align completely and execute as one.
• Progress over perfection. Good enough for today beats perfect for 2040.
• Act like an owner, because you are one. You will get real ownership of problems, decisions and outcomes from day one, reflected in meaningful equity.

This is the place for you if you want to be challenged and to challenge, want to be judged on performance rather than the performative, and are happy to pick up whatever the mission needs next. Our colleagues keep a critical eye on decisions, want to support one another and are adaptable.

We welcome applications from every background – we know that different perspectives are critical to solving the problems that nobody has ever solved.

About the role

We are seeking a scientist to join our team as we refine the design of our demonstration device. You will join at a time when the team is still small and growing fast, giving a large say in the future of this project. You will have a deep understanding of tokamak plasma physics and be prepared to work on various questions of stability and performance to inform engineering design choices. We are headquartered in London and Rome but open to remote working with expert talent.

Our Principles

• Mission first. Abundant clean energy matters more than anyone's ego. Plans change and setbacks happen; we need people who are resilient, agile and comfortable in discomfort.
• We challenge, then commit. Internally, we value rigorous intellectual honesty, respectfully communicated. Once a decision is made, we align completely and execute as one.
• Progress over perfection. Good enough for today beats perfect for 2040.
• Act like an owner, because you are one. You will get real ownership of problems, decisions and outcomes from day one, reflected in meaningful equity.

This is the place for you if you want to be challenged and to challenge, want to be judged on performance rather than the performative, and are happy to pick up whatever the mission needs next. Our colleagues keep a critical eye on decisions, want to support one another and are adaptable.

We welcome applications from every background – we know that different perspectives are critical to solving the problems that nobody has ever solved.

About the role

We are looking for a Research Scientist to help accelerate our mission by bringing expertise and experience to key points in the magnet development and fabrication pipeline. The successful candidate will work at the interface of materials science, wireprocessing, microstructural characterisation, and superconducting performance. The role will focus on understanding how precursor materials, powder processing, wire deformation, thermal processing, and densification influence the microstructure and electrical performance of powder-in-tube superconducting wires.

Wire and cable R&D will be a major focus of our next phase of development, so experience turning materials into real conductors is central to this role. This is a lab-focused role in a small, fast-moving team. You will own experiments end to end, from sample preparation through wire and cable fabrication to measurement and analysis, and your results will feed directly into materials selection, conductor design and process decisions.

An ideal candidate would have experience with a suite of characterisation techniques such as but not exclusive to;

• X-ray diffraction, including phase identification and refinement
• Scanning electron microscopy, ideally with EDS
• Mechanical testing (for example tensile, bend or hardness testing)
• Powder characterisation (for example particle size distribution, morphology and density)
• Powder processing (for example milling, mixing, pressing and sintering)

Our Principles

• Mission first. Abundant clean energy matters more than anyone's ego. Plans change and setbacks happen; we need people who are resilient, agile and comfortable in discomfort.
• We challenge, then commit. Internally, we value rigorous intellectual honesty, respectfully communicated. Once a decision is made, we align completely and execute as one.
• Progress over perfection. Good enough for today beats perfect for 2040.
• Act like an owner, because you are one. You will get real ownership of problems, decisions and outcomes from day one, reflected in meaningful equity.

This is the place for you if you want to be challenged and to challenge, want to be judged on performance rather than the performative, and are happy to pick up whatever the mission needs next. Our colleagues keep a critical eye on decisions, want to support one another and are adaptable.

We welcome applications from every background – we know that different perspectives are critical to solving the problems that nobody has ever solved.