Tritium Engineer

Tritium Engineer

Type One Energy Group, Inc. Abingdon, England, United Kingdom Engineering

Join us in our mission to commercialize fusion energy

About Type One Energy

Type One Energy Group is mission‑driven to provide sustainable, affordable fusion power to the world. Established in 2019 and venture‑backed in 2023, the company is led by a team of globally recognized fusion scientists with a strong track record of building state‑of‑the‑art stellarator fusion machines, together with veteran business leaders experienced in scaling companies and commercializing energy technologies.

If you are searching for the best new ideas and share our vision, join us as a Tritium Engineer
. This is what you need to know:

Location: Knoxville (TN) or Oxford (UK)

Salary: Highly Competitive Plus Benefits

Contract: Permanent, full time

Reporting to: Senior Director of Nuclear and Fuel Cycle

Your role in the mission:

Type One Energy is seeking a highly motivated Tritium Engineer to support the development of the Infinity Two Fusion Pilot Plant (FPP) Tritium Plant and associated technology demonstration facilities. This role combines process engineering, process modelling, systems engineering, technology development, and program delivery responsibilities. The successful candidate will support the design, modelling, integration, testing, and maturation of tritium fuel cycle systems required for the deployment of Infinity Two and future commercial stellarator power plants.

The role will contribute to the development of tritium extraction, processing, storage, isotope separation, fuel clean‑up, detritiation, fuel delivery, and tritium accountancy systems. In parallel, the successful candidate will support the development of technology demonstrators and experimental facilities used to retire technical risk and increase the technology readiness of key fuel cycle systems prior to FPP deployment.

The Tritium Engineer will work closely with the wider Tritium Plant organization, systems engineering teams, safety specialists, physics teams, external laboratories, industrial partners, and suppliers to deliver practical engineering solutions supporting the commercialization of fusion energy.

The successful candidate will be expected to balance engineering design, process modelling, technology development, and program delivery activities while acting as a key interface between the Tritium Plant organization and external technology partners.

Key Responsibilities

• Support the design, development, integration, and deployment of tritium fuel cycle systems for Infinity Two and associated technology demonstrators.
• Develop process engineering deliverables including Process Flow Diagrams (PFDs), Piping & Instrumentation Diagrams (P&IDs), engineering specifications, operating philosophies, equipment sizing calculations, and system design documentation.
• Develop and maintain process models of tritium fuel cycle systems using engineering simulation tools such as Aspen Plus, Aspen HYSYS, MATLAB, Python, COMSOL, gPROMS, or equivalent platforms.
• Perform process engineering analyses including mass and energy balances, process inventories, equipment performance assessments, process optimization studies, and design trade‑off evaluations.
• Support the development of plant‑wide fuel cycle models, tritium accountancy methodologies, digital engineering tools, and digital twin capabilities.
• Act as a system engineer for assigned fuel cycle subsystems, supporting progression through Conceptual, Preliminary, and Detailed Design phases.
• Identify technology gaps, technical risks, and development opportunities and support maturation of fuel cycle technologies through experimental programmes, technology demonstrators, and research and development activities.
• Support commissioning, testing, operation, and analysis of prototype facilities and technology demonstration systems, ensuring lessons learned are incorporated into future plant designs.
• Work collaboratively with Tritium Scientists, Fuel Cycle Modelers, Systems Engineers, Safety Engineers, and Design Engineers to develop integrated fuel cycle solutions and support long‑term fuel cycle architecture…