Mechanical Engineer

Assystem

UKonsitePosted Jun 16, 2026
Posting intelligenceActively listed

About the role

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! 🚀Reporting to the Turbine Island Senior Mechanical Engineer, you will be responsible for various Turbine Island design development activities. The Mechanical Engineer shall work closely with multi-disciplined teams and the supply chain to help deliver the Turbine Island design.

Your mission:

Ensure supplier deliverables meet requirements.

Develop and check design documents with Senior Engineers.

Assist in design development activities and optioneering studies.

Apply Systems Engineering principles.

Engage with stakeholders and attend design reviews.

Ensure compliance with safety regulations and quality management.

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

Minimum 2:1 BEng in Mechanical Engineering or equivalent.

Relevant senior engineering experience in sectors like offshore, renewables, nuclear, or other highly regulated industries.

Solid background in mechanical and structural engineering.

Proficient with CAD software: Skilled in Autodesk Inventor, AutoCAD, and/or Catia.

Strong mathematical skills: Experienced with MathCAD software.

Skilled in producing technical reports: Expertise in creating design and substantiation reports, assembly procedures, etc.

Knowledge of manufacturing processes: Understanding of welding, machining, etc.

Experienced with the engineering design cycle from Concept to Manufacture.

Additional Information:

Familiar with European and Offshore standards: Experience with Eurocode 3 and DNV.

Master’s degree is a plus.

Skilled in checking and approving engineering CAD assemblies and drawings.

Proficient in verifying engineering documentation: Manual calculations, reports, etc.

Excellent Finite Element Analysis skills: In-depth knowledge of ANSYS Workbench is desirable.

Experienced in non-linear and fatigue FEA: Familiar with DNV and Eurocodes.

Additional Information

Due to the nature of the work, applicants must meet UK security clearance criteria.

Ready to make a difference in the nuclear engineering world? Join us and be a part of the future of nuclear and fusion innovation! 🌐✨

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.

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