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Senior Mechanical Engineer

On-site Full Time Not Applicable years ⏳ Open for 75+ days
Posted: May 7, 2026
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Job Description

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

Senior Mechanical Engineer - Nuclear
πŸ“ Derby
Permanent or contract

As part of a growing account, Assystem Energy & Infrastructure are looking to increase the size of their Derby site team to respond to an increase in workload and are recruiting for a Senior Mechanical Engineer 

Key Responsibilities:

πŸ”§ Identify, formulate, and produce effective solutions to emerging problems

πŸ›‘οΈ Evaluate final product’s overall performance, reliability, and safety

✏️ Alter and modify design to meet requirements customer requirements

 πŸ’· Estimate budget and scope of project

⚠️ Management of Risk and Opportunity

πŸ“„ Prepare product reports and documentation

 πŸ“š Engage in lifelong learning and develop new theories or methods

 

Why join the community of Switchers?:

πŸ”Ή The Group is currently ranked Third in the world for nuclear engineering.

πŸ”ΉProvide opportunities to work on exciting, global projects

πŸ”ΉAccess to an employee assistance programme with free mindfulness, health, wellbeing resources and a confidential support line available 24/7 via phone or text

πŸ”ΉDiscount 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! 🌟

 

Qualifications

Skills, Qualifications and Experience:

🏭 Minimum of 5 years’ experience within the nuclear sector

πŸ› οΈ Understanding of mechanical design, safety case, operation, (precision, cleanliness requirements, damage prevention) and LfE capture

πŸ“œ Previous experience with Technical Document Authoring, Substantiation and Presenting

πŸ“ Understanding of Nuclear Health & Safety I.e Understanding of safety case requirements (Safety Functional Requirements, Engineering Schedules and criticality prevention)

🏭 Previous exposure to Chemical Plant, Glovebox’s and associated processes would be an advantage along with an understanding of Welding, NDT techniques

πŸ—„οΈ Familiarity with PLM systems (Teamcentre or similar) 

πŸ“Š Knowledge of engineering analysis tools (MathCAD, ANSYS, ABAQUS or similar) 

πŸŽ“BEng or similar professional qualification in an engineering related field 

Additional Information

 Please be aware that many roles at Assystem are subject to both security and export control restrictions.

  • These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation.
  • All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

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.

Interested in this job?

Apply now through the company's official website

Job Information

  • Type Full Time
  • Work Arrangement On-site
  • Experience Not Applicable years
  • Location Derby, England, United Kingdom
  • Posted 6 months ago

About the Company

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ASSYSTEM
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