Senior Engineer- Fuel Cycle & Process Modelling in Woburn Sands

Join Type One Energy as a Senior Engineer - Fuel Cycle & Process Modelling and help us commercialize fusion energy. Type One Energy Group is a mission‑driven company that builds state‑of‑the‑art stellarator fusion machines and develops a sustainable, affordable fusion power system.

Position Details

• Location: Knoxville, TN; Madison, WI; or Oxford, UK
• Salary: Highly competitive plus benefits
• Contract: Permanent, full time
• Reporting to: Director, Nuclear & Fuel Cycle Engineering

Your Role

Type One Energy seeks a highly experienced, technically strong engineer to drive the development, integration, and validation of advanced modeling frameworks for the fusion fuel cycle. This role is critical to shaping the architecture and performance of our Infinity 2 stellarator reactor and future commercial systems. The successful candidate will build a team of modelers and analysts, oversee system‑level and subsystem‑level model development, and ensure alignment with design, safety, and operational requirements. The role requires deep expertise in fuel cycle physics, systems engineering, and computational modeling, and the ability to guide cross‑functional collaboration across engineering, physics, and operations teams.

In addition to technical leadership, you will:

• Establish robust modeling frameworks that integrate multiple simulation tools.
• Embed experimental and R&D data into modeling workflows.
• Ensure a digital twin that accurately reflects fuel cycle behavior.
• Support operational planning, safety analysis, and regulatory compliance.
• Enable continuous design iteration.

Responsibilities

• Serve as responsible officer for a fuel cycle subsystem, ensuring clear development pathways.
• Collaborate with cross‑functional teams to conceptualize, design, and implement robust fuel cycle models.
• Conduct comprehensive process simulations and modeling to assess the efficiency, feasibility, and safety of your responsible subsystem.
• Apply modeling expertise to simulate the behavior of key subsystems and support iterative refinement of the fuel cycle architecture.
• Develop a comprehensive roadmap for modeling tool development, outlining timelines, technical requirements, funding needs, and resource allocations.
• Analyze data and perform research to identify areas for process improvement and optimization.
• Prepare technical reports, mass and energy balances, scopes of work, presentations, and publications to disseminate findings.
• Work closely with multidisciplinary teams of scientists, engineers, and technicians.
• Collaborate with external partners, including academic institutions, research organizations, and industry partners.
• Assist with preparation of protocols and procedures for safe handling of tritium for experiments.
• Be accountable for the quality and accuracy of work.
• Provide transparent and realistic feedback on timelines, resources, and issues to enable completion of assigned duties.

Qualifications

• PhD or equivalent experience in Nuclear Engineering, Systems Engineering, Physics, or a related field.
• Proven track record in modeling complex nuclear or chemical systems, ideally within the fusion or advanced fission domain.
• Deep understanding of tritium and hydrogen isotope behavior, fuel cycle dynamics, and reactor systems integration.
• Proficiency in modeling tools such as Aspen Plus, COMSOL, FESTIM, TMAP, MATLAB, or Python‑based platforms.
• Experience leading technical teams and managing multidisciplinary modeling efforts.
• Strong analytical and problem‑solving skills focused on model accuracy, validation, and decision support.
• Familiarity with nuclear safety standards, regulatory frameworks, and design control processes.
• Excellent communication skills and the ability to translate complex technical concepts for diverse audiences.

Benefits

• Stock and share options
• Relocation allowance
• Insurance plans
• 401(k) retirement options
• And many more voluntary benefits

Equal Opportunity Statement

Type One Energy is an equal‑opportunity employer. We value diversity and encourage all qualified applicants to apply, irrespective of race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other characteristic protected by applicable federal, state, or local laws.