Principal Structural Integrity Engineer

Overview As Principal Structural Integrity Engineer, you lead the technical direction for structural integrity across new build and life extension projects in the defence sector. You will shape and mentor a team of engineers, act as an Independent Technical Approver, and represent Assystem in client meetings.

You apply advanced FE analysis and code-based assessments to verify integrity to international standards, collaborating with safety case authors and cross-functional teams. This role drives bids, growth initiatives, and the development of future integrity leaders.

You will work in a high-impact environment focused on nuclear and highly regulated infrastructures, with a clear opportunity to shape Pay / Benefits hybrid work: 1-2 days remote per week attractive social benefits employee committee and holiday bonuses ongoing training with career opportunities internal promotions (70% of managers promoted internally) Responsibilities Serve as the go-to expert for Structural Integrity; troubleshoot, advise, and review analyses and progress Review calculations and reports; represent Assystem in client meetings Act as Independent Technical Approver to ensure high technical standards Use Finite Element Analysis and hand calculations to prove structural integrity to international standards Collaborate with safety case authors and cross-functional engineering teams Support bids, proposals, and strategic growth initiatives Mentor junior engineers and develop the next generation of integrity professionals Key requirements Lead on structural integrity with modern techniques Own assessments using top tools & standards Mentor junior engineers & lead technically Work directly with clients to solve problems Expert in FE analysis for strength, fatigue, defects, and service life Experience in ASME III/VIII, API-579, BS7910, BS7608 (R3/R5/R6 a plus) Bonus: CFD, dynamics, fatigue, degradation mechanisms is highly desirable Must have nuclear sector experience Eng. degree + CEng Experience in nuclear SSC assessments Strong communicator with commercial awareness Expert in ABAQUS (or ANSYS, Dyna, etc.) Used Altair Hyperworks or similar tools Familiar with code assessments (ASME, PD5500, BS2573, BS EN 13001) Know manufacturing methods, materials, inspections Strong communication Commercial awareness Mentoring and leadership FEA (ABAQUS, ANSYS, Dyna) Altair HyperWorks Code assessments (ASME, PD5500, BS2573, BS EN 13001)

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