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Senior Mechanical Engineer

United Kingdom, Bristol · Job Posted May 20, 2026
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Job Description

Join the Fusion and Modular Nuclear Business Unit! Reporting to the Turbine Island Lead, the Senior Mechanical Engineer shall be responsible for various Turbine Island design development activities. The Senior Mechanical Engineer shall work closely with multidisciplined teams and the supply chain to help deliver the Turbine Island design.

Job Responsibility

  • Ensure supplier deliverables meet requirements by critically assessing designs
  • Create and review Process Flow Diagrams, Piping and Instrumentation Diagrams, Layout Drawings, Sizing Calculations, Datasheets, and Specifications
  • Lead and review optioneering studies, Decision Record Files, Design Descriptions, and Requirement Specifications
  • Develop and review Functional and Design Requirements using Systems Engineering principles
  • Seamlessly integrate Turbine Island design into the wider power plant
  • Serve as the technical contact for Turbine Island interfaces and stakeholder activities
  • Participate in Design Reviews and HAZID/HAZOP studies with multidisciplinary teams
  • Work with the safety team on nuclear safety licensing, environmental planning/permitting, and related activities
  • Adhere to statutory H&S policies, project quality, and the Quality Management System

Requirements

  • Previous work in nuclear, thermal power, oil and gas, or other regulated sectors
  • Experienced with steam turbines, condensers, feedwater heaters, pumps, and piping systems
  • Strong background in thermal power systems, with experience from FEED to detailed design and EPC delivery
  • Skilled in developing procurement specifications and collaborating with equipment suppliers
  • Extensive technical experience in thermal power or similar projects
  • Excellent at engaging with internal and external stakeholders
  • Capable of identifying and managing critical interfaces on major projects
  • Proficient in UK Health and Safety regulations, safety systems, HAZOP, and engineering standards
  • Knowledgeable in ASME, European, and UK codes and standards
  • Bachelor’s degree or Higher National Diploma in engineering
  • CEng or working towards it
  • SC Clearance or ability to achieve it
  • Experience or awareness in Systems Engineering is a plus

Nice to have

Experience or awareness in Systems Engineering

What we offer

  • Attractive social benefits, including an engaging Employee Committee and holiday bonuses
  • Ongoing training with numerous career opportunities
  • Hybrid work: 1-2 days remote per week

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