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
This full-time role designs instrumentation and control systems for fusion-related equipment and test facilities. Responsibilities include creating instrument lists and data sheets from P&IDs; selecting pressure, temperature, flow, and composition-analysis instruments; preparing instrumentation specifications; requesting quotations from vendors; evaluating vendor proposals; and reviewing vendor documents after orders are placed.
The engineer develops system configurations and specifications suited to each facility, manages system vendors after ordering, handles design changes, and conducts FAT and SAT. The role also covers interface design with piping, electrical systems, and equipment; participation in HAZOP and other safety workshops; SIS design; and preparation of Control Narrative, Cause and Effect, IO List, Cable Route, Cable Schedule, Loop Drawing, and related instrumentation construction documents. Pre-Commissioning and Commissioning support is provided at the site after control system installation. The role also includes research and development for instruments used in fusion power-generation facilities.
Required experience includes producing instrumentation design documents from P&IDs, including instrument data sheets and Instrument Lists. Candidates must have experience ordering field instruments such as flowmeters, thermometers, level meters, pressure gauges, and analyzers on overseas EPC projects, including preparing technical specifications and technically evaluating vendor quotations. Experience ordering ICSS vendors, including DCS, SIS, and FGS, on overseas EPC projects is required, together with experience preparing associated technical documents. Vendor management after ICSS ordering, engineering change control, and FAT experience are also required.
The posting asks for a basic understanding of HAZOP, LOPA, SIL Verification, process safety, and instrumentation safety design. Experience creating Cable Route, Cable Schedule, Hook Up Drawing, BQ, and BOM documents, system configuration using Modbus TCP, PROFIBUS, Ethernet/IP, or EtherCAT, and familiarity with instrumentation design standards including IEC 61508/61511, ISO 5167, and ASME PTC 19.3 are required. Experience managing project progress, cost, and quality with internal and external stakeholders, conducting specification discussions, and reviewing documents is also required. Intermediate English is required.
Preferred qualifications include advanced English, a U.S. Professional Engineer license, FS Engineer certification from TÜV Rheinland, DCS software development experience with systems such as Yokogawa CENTUM VP or Emerson DeltaV, PLC software development experience with Siemens or Allen-Bradley, project experience using Smart Junction Boxes, and Microsoft Access experience.
The listed annual salary range is JPY 5.4 million to JPY 12 million. The employment form is monthly salary, with the final amount discussed according to experience and subject to company performance and individual evaluation. The standard schedule is 9:00 to 18:00 with a one-hour break; flextime may apply depending on business needs. The positions are in Ota Ward, Tokyo, or Kumiyama, Kyoto. For Tokyo-based work, the Marunouchi satellite office may also be used from June 2026. Remote work is negotiable for someone living within commuting distance, and domestic or overseas transfers may occur.
The role is offered as a permanent employee position, although hiring as a contract employee is also possible. Holidays are Saturdays, Sundays, and public holidays, with at least 120 annual holidays; the posting records 125 in 2025 and 126 in 2026. Benefits include social insurance, other welfare benefits, salary increases, and special paid leave granted upon joining. Indoor smoking is prohibited throughout the offices, with a smoking room in the building. The posting asks applicants not to reapply for the same position within six months of a previous application.
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