Senior or Principal Mechanical Engineer (Piping)

Overview

As a Piping Engineer at Assystem, you will support safety, reliability, and compliance across major nuclear sites. You will collaborate with multi-disciplinary teams to drive design substantiation, assessment of changes, and safety-focused justifications. You will develop and maintain inspection and testing schedules while applying advanced piping design in high-hazard environments. This role offers exposure to UK/EU nuclear standards and frequent interaction with safety committees, all within a hybrid Glasgow setting.

Pay / Benefits

• Pension scheme (8% company contribution / 4% personal)
• 25 days’ paid annual leave + bank holidays + buy/sell options
• Professional fees reimbursed
• Flexible working
• Employee referral scheme

Responsibilities

• Develop and maintain Infrastructure Design Substantiation documents
• Manage and assess design changes and concessions
• Present design justifications to nuclear safety committees
• Produce and maintain EIMT schedules (Examination, Inspection, Maintenance & Testing)
• Review and assess Periodic Safety Reviews and technical documentation
• Provide expert technical advice to internal and external stakeholders
• Apply advanced piping and process design principles in nuclear/high-hazard environments
• Contribute to multi-disciplinary engineering projects

Key requirements

• Proven experience as a Piping Engineer in industrial plant and machinery environments
• Strong understanding of British & European design standards and best practices
• Experience across concept, detailed design, and construction stages (preferably industrial or maritime)
• Skilled in design assessment of plant and equipment to withstand hazards
• Proficient in pipe stress analysis
• Ability to produce robust technical justifications and documentation for design modifications in high-hazard industries
• Experience in contributing to multi-disciplinary engineering projects

• strong communication with stakeholders
• team collaboration across disciplines
• problem-solving under high-hazard constraints
• piping design
• process design principles
• pipe stress analysis

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