Design fusion-plant piping and piping-system R&D, including layouts, materials, stress analysis and 3D CAD. Requires relevant plant or piping experience, ASME/JIS knowledge and intermediate English.
About this role
The materials engineer develops advanced structural materials needed for fusion reactors, including ceramic matrix composites such as CMC and heat-resistant, high-strength metals such as vanadium alloys. Responsibilities cover raw-material selection, material design, process development and condition optimization. Depending on the material, processes may include forming, debinding and sintering, or melting, forging and heat treatment.
The role includes conducting thermal analysis, mechanical-property testing and thermophysical-property evaluation, followed by data analysis and report preparation. The engineer also evaluates quality and performance through microstructural observation and phase analysis, and works on material standardization.
A central responsibility is leading technical discussions, specification development, procurement coordination and vendor control with raw-material manufacturers and companies responsible for processing or outsourced evaluation. This includes managing delivery schedules and costs. The engineer coordinates with researchers and engineers from different fields and collaborates with internal and external partners to improve the technology readiness level of fusion-reactor structural materials.
Required experience includes practical materials or process development in either metal materials or ceramic materials. Examples include alloy design, casting, forging and heat treatment, or powder metallurgy and sintering processes. Candidates must also have practical experience advancing technical negotiations with companies involved in the mass production or practical application of raw materials, materials or processing, including material selection, specification development, and delivery and cost management. Practical experience organizing and analyzing data using Excel or similar tools is required. The role requires the ability to discuss technical matters and prepare technical documents and reports in Japanese and English.
Experience developing CMC or heat-resistant alloys such as vanadium alloys, or materials development and related equipment design or fabrication in the fusion or nuclear fields, is welcomed. Other welcomed experience includes equipment design, material selection or fabrication based on ASME, EN, JSME or other domestic and international standards; creating models and drawings with 3D CAD software; validating designs with FEA or CFD and comparing analyses with experimental results; materials evaluation; practical use of materials, thermodynamics, fluid mechanics or mechanical dynamics; and knowledge of phase equilibria and phase diagrams.
The position is full-time and is based at offices in Ota, Tokyo or Kuse-gun Kumiyama, Kyoto. Tokyo-based employees may also work at a satellite office in Marunouchi from June 2026. Remote work may be discussed for employees living within commuting distance. Working hours are 9:00 to 18:00 with a one-hour break, with flextime potentially applying depending on business needs. The role may involve domestic or overseas transfers. Annual salary is JPY 7,000,000 to 9,000,000, paid monthly and subject to experience, company performance and individual evaluation. Social insurance, benefits, salary increases and special paid leave at joining are provided. Employment may also be offered as a contract employee.
This is an AI-generated summary of the employer's original posting — details can be incomplete, out of date or simply wrong. Always confirm everything on the official posting before applying.
Similar jobs
Manage fusion equipment and system projects from planning through handover, coordinating schedules, costs, resources, risks, teams, vendors, customers, installation, and testing.
Design gas, fluid, and thermal processes for fusion equipment from concept to detailed design, prepare PFDs/P&IDs, support commissioning and testing, and optimize processes for future plant deployment.
Manage deployment, operation, and maintenance of facilities in large data centers.
Design electrical hardware for medical equipment, including analog, digital and power-electronics circuits, FPGA work, testing and verification through product development and launch.
Develop and validate mobile, IoT, and broadband-router devices or Android/iOS service apps, while handling testing, project coordination, and hardware quality assurance.