Assystem is an international company with one mission: accelerate the energy transition around the world.
Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.
We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.
Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked second in the world for nuclear engineering.
To ensure a viable, efficient, and reliable energy future for all.
Principal Structural Integrity Engineer
📍 Location: Derby
Your future team:
Due to rapidly increasing demands for new plant and equipment in the defence industry, as well as life extension programmes for existing plant, our structural integrity experts are in high demand, and we need a technical leader to drive that growth.
👥 You’ll help shape a team of smart, driven engineers
🌱 Mentor and grow future technical leaders
Your Missions:
🔧 Serve as the go-to expert for Structural Integrity . Troubleshoot issues, give technical advice, and review analysis & progress.
📄 Review calculations and reports, and confidently represent Assystem in client meetings.
✅ Act as an Independent Technical Approver, ensuring high technical standards.
🧮 Use Finite Element Analysis and hand calcs to prove structural integrity to international standards, including pressure vessel & defect tolerance codes.
🤝 Work closely with safety case authors and cross-functional engineering teams.
📈 Help drive bids, proposals, and strategic growth initiatives.
🎓🌱 Mentor junior engineers, shaping the next generation of integrity professionals.
Why join the community of Switchers?:
🔹 The Group is currently ranked third in the world for nuclear engineering.
🔹Access to an employee assistance programme with free mindfulness, health, wellbeing resources and a confidential support line available 24/7 via phone or text
🔹Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle to work scheme, free flu jabs
At Assystem, we celebrate diversity and creativity. We believe in harnessing unique perspectives to shape innovative solutions. Your skills and daring spirit are what truly matter. Join us and help shape the future! 🌟
QualificationsRequirements & Qualifications
We Want Someone Who Can...
🧠 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
📘 Skilled in ASME III/VIII, API-579, BS7910, BS7608 (R3/R5/R6 a plus)
🔁 Bonus: experience in CFD, dynamics, fatigue, degradation mechanisms is highly desirable
⚛️ Must have nuclear sector experience
Your Toolbox Should Include...
🎓 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
🚀 Not a perfect match? Let’s talk anyway — we’re open to growing the right talent.
Additional Information**Security Clearance**
This role requires the successful candidate to hold (or be able to obtain) a minimum of a Security Check (SC) clearance without any caveats to that clearance.
Due to the nature of work this role will be delivering and for the protection of certain assets, the successful candidate has to be a sole UK national
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
Top Skills
What We Do
Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change. 7,000 switchers, spread in 12 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport. We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures. 55 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SGP, SNCF... Assystem is ranked in the Top 3 companies in the nuclear energy sector.
