Hybrid Senior Mechanical Engineer – Turbine Island Design

Assystem UK Ltd; Olney; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Assystem UK Ltd is seeking a Senior Mechanical Engineer to join the Fusion and Modular Nuclear Business Unit. You will lead Turbine Island design activities, collaborate with multidisciplinary teams and the supply chain, and ensure supplier deliverables meet requirements.

The role requires a strong background in thermal power, experience from FEED to EPC delivery, and knowledge of UK safety standards. You will engage with internal and external stakeholders and support design reviews and

Qualifications

• Industry experience in nuclear, thermal power, oil and gas, or other regulated sectors.
• Experience with steam turbines, condensers, feedwater heaters, pumps, and piping systems.
• Thermal power background from FEED to detailed design and EPC delivery.
• Procurement specifications development and supplier collaboration.
• 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.
• Knowledge of UK H&S regulations, safety systems, HAZOP, and engineering standards.

Responsibilities

• Create and review Process Flow Diagrams, P&ID, Layout Drawings, Sizing Calculations, Datasheets, and Specifications.
• Conduct optioneering; lead and review Decision Records and Design Documentation.
• Apply Systems Engineering to develop requirements.
• Integrate Turbine Island design into the broader power plant.
• Provide technical support; act as the interface with Turbine Island stakeholders.
• Support design reviews and HAZID/HAZOP studies with multidisciplinary teams.
• Liaise on safety and regulatory licensing, environmental planning and permitting.
• Adhere to statutory H&S policies, project quality, and QS System.

Skills

Industry experience

Thermal power

Procurement

Technical proficiency

Communication

Project management

Safety knowledge

Codes & standards

Systems engineering

Education

Bachelor's degree or HND in engineering

Job description

Assystem UK Ltd is seeking a Senior Mechanical Engineer to join the Fusion and Modular Nuclear Business Unit. You will lead Turbine Island design activities, collaborate with multidisciplinary teams and the supply chain, and ensure supplier deliverables meet requirements.

The role requires a strong background in thermal power, experience from FEED to EPC delivery, and knowledge of UK safety standards. You will engage with internal and external stakeholders and support design reviews and