Senior Mechanical Design Engineer - Defence

• Overview
• Senior Mechanical Engineer (Fluid Systems / Balance of Plant)

Location

UK (Hybrid Working Available)

Job Type

Permanent | Full Time

Sector

Nuclear | Thermal Power | Mechanical Engineering | Balance of Plant

Responsibilities

• Fluid Systems Engineering
• Lead the development of fluid systems within Balance of Plant scope.
• Produce and review Process Flow Diagrams (PFDs) and Piping & Instrumentation Diagrams (P&IDs).
• Develop layout drawings, system schematics and engineering design documentation.
• Carry out component sizing calculations and develop equipment specifications and datasheets.
• Support optioneering studies and technical decision-making processes.
• Produce and review design descriptions, requirement specifications and technical reports.
• Systems Engineering & Integration
• Apply Systems Engineering principles to define functional and design requirements.
• Ensure integration of fluid systems within the wider power plant design.
• Manage and resolve technical interfaces across multidisciplinary engineering teams.
• Contribute to design development through FEED and detailed design stages.
• Technical Leadership & Delivery
• Act as technical point of contact for system interfaces and stakeholder engagement.
• Support and lead design reviews, HAZID and HAZOP studies.
• Liaise with project safety, environmental and licensing teams on nuclear safety requirements.
• Provide engineering input into procurement specifications and supplier engagement.
• Work with equipment vendors to ensure compliance with technical requirements.
• Project Execution
• Support delivery of engineering activities in line with project scope, schedule and budget.
• Ensure adherence to engineering governance, quality assurance and HSE requirements.
• Contribute to risk identification, mitigation and resolution activities.
• Maintain compliance with relevant engineering standards and codes.

Essential Requirements

• Proven experience in mechanical engineering within nuclear, thermal power, oil & gas or other highly regulated industries.
• Strong background in fluid systems design and Balance of Plant engineering.
• Experience working across FEED, detailed design and EPC project phases.
• Ability to develop and review engineering deliverables including PFDs, P&IDs and system specifications.
• Experience working with multidisciplinary engineering teams and managing technical interfaces.
• Strong communication and stakeholder management skills.
• Understanding of UK health, safety and nuclear regulatory requirements.

Desirable Experience

Experience in any of the following would be advantageous

• Systems Engineering principles and application.
• Procurement specification development and supplier engagement.
• Thermal power generation systems.
• Nuclear licensing and safety case interfaces.
• HAZOP / HAZID participation.
• ASME, UK and European engineering standards.
• EPC delivery environments.

Qualifications

• Degree or Higher National Diploma in Mechanical Engineering or a related discipline.
• Chartered Engineer (CEng) status or working towards professional registration is desirable.
• Security Requirements

Due to the nature of the projects, successful applicants must be eligible to obtain and maintain

UK Security Check (SC) clearance .

• What’s on Offer
• Competitive salary and comprehensive benefits package.
• Flexible hybrid working arrangements.
• Opportunity to work on major nuclear and low-carbon energy programmes.
• Exposure to full lifecycle engineering from concept through to delivery.
• Structured career development and professional progression.
• Support towards Chartered Engineer status.
• Payment of professional membership fees.
• Generous annual leave entitlement.
• Competitive pension scheme.
• Employee wellbeing programme.
• Retail discounts and employee benefits platform.
• Collaborative engineering environment working with leading technical specialists.
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