About this role

Company Description

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. 

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Job Description

🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀Help shape the future of the energy transition at one of the world’s leading nuclear engineering companies.

Assystem is growing fast — and our stress and structural integrity capability is growing with it. We’re looking for a Senior/Principal Stress Engineer who is ready to take the next step into a technical and capability leadership role, helping to strengthen, grow and develop our UK stress engineering community.

This is a hybrid role: you’ll deliver high-value technical work for clients while also shaping the direction, tools, talent and strategy of our stress capability.

Your mission:

  •  Lead complex stress and structural integrity assessments using FEA and hand calculations
  • Review and approve technical work, representing Assystem confidently with clients
  • Mentor and develop engineers, building future stress specialists
  • Drive capability growth — training, methods, best practices, recruitment and retention
  • Support bids and business development, working closely with Engineering Directors and Sales
  • Collaborate across multi-disciplinary teams in the nuclear and defence sectors

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: 3 days remote per week.

Qualifications

What You’ll Bring:

  • Lead, build and guide a community of highly skilled stress engineers 
  • Strong background in stress analysis / structural integrity
  • Expertise in FEA (ABAQUS, ANSYS, etc.) and relevant assessment codes (ASME, BS7910, R6 etc.)
  • Experience in the nuclear or similar highly regulated sector
  • Chartered Engineer status (CEng) or working toward it
  • Ability to develop and implement technical strategy and capability development

Additional Information

Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level.

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.

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.

Frequently Asked Questions

Is the salary disclosed for the Senior Stress Engineer position at assystem?
The salary for this Senior Stress Engineer role at assystem is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Stress Engineer position at assystem located?
This Senior Stress Engineer role at assystem is based in England, Newcastle upon Tyne, Newcastle upon Tyne, England, United Kingdom, gb. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Stress Engineer role at assystem full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Stress Engineer role at assystem.
How do I apply for the Senior Stress Engineer position at assystem?
Click the "Apply Now" button on this page. You will be redirected to assystem's official application portal hosted on smartrecruiters where you can submit your application directly.
When was the Senior Stress Engineer job at assystem posted?
This Senior Stress Engineer position at assystem was posted on May 26, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Stress Engineer
assystem
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