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

6 month Umbrella company contract

Are you a skilled Principal or Senior Mechanical Engineer with a passion for delivering cutting-edge solutions in a highly regulated industry? We are looking for an experienced calculation and design checker to check detailed design calculations for mechanical and structural designs. If you thrive in a dynamic, problem-solving environment, this role is for you!

Your missions:

🎯 Manage the development, review, and checking of technical documentation, including verification of detailed design drawings, calculations, and compliance documentation.

🎯 Work with Autodesk Inventor, MathCAD, AutoCAD, and FEA tools.

Qualifications

Qualifications

BEng (2:1 or higher) in Mechanical Engineering or equivalent.

💡 Proven experience in mechanical engineering within a highly regulated sector.

💡 Strong Knowledge of design for fabrication, welding and manufacturing tolerancing. Specification of heavy industry design experience such as offshore, oil and gas,  construction equipment, or similar

💡 Strong knowledge of mechanical and structural engineering principles, including mechanical handling, design for manufacture and machinery design.

💡 Experience with MathCAD and FEA software (ANSYS, STAAD).

💡 Experience with Eurocode 3, BS EN 13001, BS EN  13155 or similar crane related standards is desirable.

💡 Experience with hydraulics and control systems is desirable.

Additional Information

Additional information

🔹Sole UK nationals only.

🔹Must be eligible to gain SC clearance (can start on BPSS).

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.

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 Mechanical Engineer position at assystem?
The salary for this Senior Mechanical Engineer role at assystem is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Senior Mechanical Engineer job at assystem remote?
Yes, this Senior Mechanical Engineer position at assystem is remote, with team members based in England, Newcastle upon Tyne, Newcastle upon Tyne, England, United Kingdom, gb. You can work from home or anywhere in the supported regions.
Is the Senior Mechanical Engineer role at assystem full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Mechanical Engineer role at assystem.
How do I apply for the Senior Mechanical 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 Mechanical Engineer job at assystem posted?
This Senior Mechanical Engineer position at assystem was posted on May 7, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Mechanical Engineer
assystem
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