Senior Mechanical Designer

Warrington, England, gb on site Until 9/22/2026 First posted July 24, 2026 Last posted July 24, 2026
Job 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.

Join Our Team as a Senior Mechanical Designer!

Position: Permanent / Contract 

🔧 About the Role:

Are you ready to tackle exciting challenges in a regulated industry, especially in nuclear engineering?

As a Mechanical Senior Designer, you'll:

📐 Produce detailed drawings using Inventor / AutoCAD software.

🧤 Design Alpha Gloveboxes with safety in mind.

📊 Manage your workload efficiently and drive project completion.

🤝 Communicate effectively with team members and clients.

 

🎯 Your Background:

💼 Worked in regulated industries, preferably nuclear.

📦 Recent experience in designing Alpha Gloveboxes.

🛠️ Proficiency in Inventor / AutoCAD.

🔄 Knowledge of 'Design for Assembly' principles.

💬 Strong communication skills.

📜 Essential Qualifications:

💻 Proficiency in Microsoft Office Packages, Inventor, and AutoCAD.

🔒 Security Clearance: Applicants must meet residency criteria to attain UK security clearance, if not already cleared to a minimum SC level.

🌟 Join Our Diverse Team:

At Assystem, diversity drives innovation. We value different backgrounds and perspectives, as they shape impactful solutions. Bring your unique skills and help shape the future with us!

Why Join us? 

🔹A dynamic career management policy to enable our employees to progress through our five business lines: operations, project, technical, sales and support functions

🔹Provide opportunities to work on exciting, global projects

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

🔹Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle to work scheme, free flu jabs

🔹Enhanced sick pay

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.

About this role

Summary

Design detailed mechanical drawings and manage projects in regulated nuclear industry

Job title

Senior Mechanical Designer

Experience level

senior level

Industry

nuclear engineering

Location requirements

Warrington, England; remote work not specified

Salary

Not specified

Management role

No

Skills & keywords

Required skills

AutoCADInventorMicrosoft Officedesign for assemblysecurity clearance

Preferred skills

nuclear experienceglovebox designcommunication skills

Specializations

mechanical designAutoCADInventorgloveboxesregulated industry
Locations

Structured locations inferred from the posting.

Warrington, UK

On-site City