Systems Integration Engineer

Tokamak Energy is a global leader in fusion energy and high temperature superconducting (HTS) technologies. We work with governments and industry to develop and bring fusion and HTS solutions to market through innovation and strategic partnerships. A major part of this is our end to end capability in HTS systems, from design to manufacturing.

We are the Magnet Systems Partner for the UK Government's STEP Fusion programme, under a £70 million contract running to 2029, working with UK Fusion Energy to deliver HTS magnet systems for the STEP prototype power plant, while also contributing to tokamak systems and plasma integration.

Founded in 2009 as a spin-out from the UK Atomic Energy Authority, Tokamak Energy is headquartered in Oxfordshire, with subsidiaries in the United States and Japan. Today, we employ over 300 people and have secured more than £280 million in investment.

We operate through three divisions:

Fusion - Fusion energy technologies, expertise and testbeds for government and private fusion programmes, including ST40, the world’s highest field spherical tokamak.

TE Magnetics - HTS systems for commercial applications including fusion energy, power distribution, life sciences, and propulsion.

Ridgway Machines - Manufacturing equipment for the superconducting, electrical and wider energy sectors, enabling the rapid industrialisation of HTS products.

Join the team helping to define the future of fusion energy and advanced superconducting technologies

At Tokamak Energy, we're tackling some of the world's most complex engineering challenges. We're looking for a Systems Integration Engineer who thrives on bringing structure to complexity, connecting information across teams, and helping turn ambitious engineering concepts into deliverable technology.

This is an opportunity to play a pivotal role on a major programme, working at the intersection of systems engineering, advanced magnet technology, cryogenics, power systems and large-scale engineering integration.

You'll work closely with technical leaders and multidisciplinary engineering teams, helping to define requirements, manage interfaces, build system architectures and ensure critical decisions are made with confidence and clarity. The role has been created because demand for systems engineering expertise is growing and we're looking for someone who can become a key contributor to programme success from day one.

Why this role exists

At Tokamak Energy, we're developing some of the world's most advanced high temperature superconducting (HTS) magnet systems and fusion technologies. As our programmes grow in scale and complexity, we're looking for a Systems Integration Engineer who can help bring structure, clarity and alignment across multiple engineering disciplines.

Working within our Systems & Integration Group, you'll collaborate with technical leads, project managers and subject matter experts across magnet design, cryogenics, electrical systems, controls, integration and external partners. You'll help ensure critical requirements, interfaces and technical decisions are captured, understood and managed effectively.

This role is ideal for someone who enjoys solving complex engineering challenges, bringing order to ambiguity, and working with experts across multiple disciplines to deliver technologies that do not yet exist today.

Why this role is exciting

This is not a role focused on maintaining established products or supporting incremental improvements.

You'll be helping shape novel technologies in a rapidly evolving environment where engineering teams are often tackling challenges for which there is no established solution. Success requires curiosity, strong analytical thinking and an ability to break down complex problems into manageable parts.

Whether your background is in aerospace, advanced automotive, defence R&D, fusion, nuclear, robotics, energy, space or another technically demanding environment, you'll have the opportunity to apply systems engineering principles to genuinely cutting-edge programmes.

What you'll be doing

• Supporting systems engineering activities across major engineering programmes.
• Capturing, managing and maintaining system requirements and ensuring full traceability.
• Developing system architectures, functional breakdown structures and interface definitions.
• Gathering information from multiple technical teams and transforming it into clear, structured engineering outputs that support informed decision-making.
• Working with technical leads and project managers to support programme delivery.
• Coordinating activities across multidisciplinary teams including magnet design, cryogenics, electrical systems, instrumentation and plant integration.
• Supporting technical reviews, readiness reviews and risk management activities.
• Developing verification and validation strategies for complex engineering systems.
• Defining and maintaining critical interfaces between teams, suppliers and external partners.
• Contributing to the continuous improvement of systems engineering processes, tools and methodologies.

Location

This is a permanent position based in Oxfordshire with hybrid working available. Regular onsite collaboration is expected, typically around three days per week across programme locations, depending on project needs.