Principal Structural Integrity Engineer

ASSYSTEM; East Midlands; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading engineering firm is seeking a Principal Structural Integrity Engineer located in Derby. The successful candidate will lead structural integrity initiatives, mentor junior engineers, and represent the company in client interactions. Candidates must possess expertise in structural analysis and nuclear sector experience. This role offers hybrid working arrangements, competitive benefits, and opportunities for professional growth.

Benefits

Attractive social benefits

Ongoing training and career opportunities

Holiday bonuses

Qualifications

• Proven experience in structural integrity leadership with modern techniques.
• Ability to perform assessments using top tools and standards.
• Experience in working directly with clients to solve structural integrity issues.

Responsibilities

• Serve as the go-to expert for Structural Integrity and troubleshoot issues.
• Review calculations and represent the company in client meetings.
• Act as an Independent Technical Approver for structural integrity.

Skills

Structural integrity leadership

Finite Element Analysis

Mentoring junior engineers

Client problem-solving

Expertise in ASME III/VIII

Strong communication

Education

Engineering degree + CEng

Tools

ABAQUS

ANSYS

Altair Hyperworks

Job description

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 optimise 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.

Job Description

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?

• 🌟 Over 55 years in nuclear engineering.
• 🏆 Ranked among the top 3 largest nuclear engineering companies.
• 💼 Attractive social benefits, including an engaging Employee Committee and holiday bonuses.
• 📚 Ongoing training with numerous career opportunities.
• 📈 70% of our managers are promoted internally!
• 🏠 Hybrid work: 1–2 days remote per week.

Qualifications

Requirements & 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.