Job Description

Company Description

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About Assystem

Assystem is committed to accelerating the global energy transition. With 8000 Switchers across the globe, we combine deep-rooted engineering expertise with digital innovation to help build a sustainable energy future. In the UK, we play a vital role in landmark projects such as Hinkley Point C, Sizewell C, and the development of SMRs, supporting the safe and efficient delivery of nuclear power infrastructure.

Why Join the Community of Switchers?

You'll be joining one of the top three nuclear engineering companies in the world. Our mission-led approach places you at the heart of the energy transition. At Assystem, you'll collaborate with industry leaders, contribute to world-class nuclear projects, and gain exposure to some of the most ambitious engineering programmes on the planet.

Please note - we're unable to offer visa sponsorship for this role, so applicants must have full right to work in the UK

This is a full-time, site-based role on Hinkley Point C, requiring candidates to be within commutable distance of Bridgwater or willing to relocate with support available. You will join your future team providing mechanical, welding, and fabrication assurance on a major nuclear construction project. The role blends mechanical design support with on-site engineering oversight in a highly regulated environment.


Provide mechanical engineering support across design, construction, and installation phases

Contribute to mechanical design activities including reviews, calculations, and design substantiation

Review and approve welding procedures, qualifications, and fabrication documentation

Review mechanical drawings, specifications, and design change documentation

Oversee on-site welding and fabrication quality and inspection activities

Ensure compliance with ASME, ISO, EN, and BS standards

Interface with contractors, designers, quality, and safety teams

Promote nuclear safety culture and regulatory compliance

Qualifications

Required Skills and Qualifications

Degree in Mechanical Engineering or equivalent qualification

Experience supporting mechanical design within regulated engineering environments

Experience on large, complex engineering or infrastructure projects

Strong knowledge of welding processes and fabrication practices

Familiarity with engineering standards, specifications, and quality documentation

Understanding of inspection, traceability, and compliance requirements

? Strong technical writing and communication skills

Ability to work collaboratively across design and site teams

Additional Information

This role offers a rare balance of mechanical design involvement and site-based delivery on one of the UK's most important infrastructure projects. If you want your engineering decisions to directly influence safe construction and long-term plant performance, this position offers genuine technical impact and long-term career value.

Benefits include:

Flexible working hours

? Market Leading Pension scheme (8% company contribution / 4% personal contribution)

? 25 days' paid annual leave + bank holidays + option to buy or sell days

Professional fees reimbursed

Employee referral scheme

Competitive Sick Pay - Support when you need it

Income Protection & 3x Salary Death-in-Service Cover

Free Digital Gym Access - Expert-led fitness classes

24/7 Employee Support Line - Mental health, financial & legal help



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.