Principal Structural Integrity Engineer

Company: Assystem
Apply for the Principal Structural Integrity Engineer
Location: Derby
Job Description:

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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Posted: September 30th, 2026