Mechanical Stress Engineer (Nuclear)

Location: Hybrid, Actemium Design (Chorley), United Kingdom

Company

Actemium Design is an award-winning engineering design company delivering regulated-industry projects across concept, consultancy, detailed design, and delivery, with expertise in mechanical, EC&I, process engineering, and project management.

What you will do

• Perform detailed pipeline stress analysis and flexibility assessments using industry-standard software.
• Develop and verify engineering calculations for supports and mechanical equipment.
• Produce stress reports, calculation packages, and technical documentation.
• Ensure compliance with design codes, standards, and project specifications.
• Participate in design reviews, hazard studies, and technical assurance activities.
• Support site investigations, troubleshooting, and engineering modifications.

Requirements

• Degree in Mechanical Engineering or a related discipline.
• Strong experience in pipeline stress calculations or seismic analysis.
• Proficiency with Mathcad, CAESAR II, and ANSYS.
• Knowledge of ASME B31.1, ASME B31.3, EN13480, BS EN 13001, BS EN 1993, and seismic design requirements.
• Ability to prepare and review detailed calculation notes and technical reports.
• Eligibility for certain roles may be affected by place of birth, nationality, current or former citizenship, and current or former residency because of national security clearance restrictions.

Nice to have

• Experience in nuclear, oil and gas, energy, utilities, or process industries.
• Chartered Engineer status (CEng) or progress toward professional registration.
• Finite element analysis (FEA) experience.
• Knowledge of Eurocodes and seismic design methodologies.

Culture & Benefits

• Hybrid working arrangement based at Actemium Design in Chorley.
• Work on strategically important projects in nuclear and other highly regulated sectors.
• Projects cover the full engineering lifecycle from concept and consultancy through detailed design and delivery.