Company Description

⚡️ About Assystem

At Assystem, we’re committed to accelerating the energy transition globally. Our 7,750 Switchers blend proven expertise with cutting-edge digital technologies to drive low-carbon energy forward. In the UK, we play a pivotal role in delivering key infrastructure within the nuclear sector, partnering with major clients across flagship new-build, decommissioning and life extension projects.

Why Join the Community of Switchers?

You’ll be part of one of the world’s top three independent nuclear engineering companies, shaping tomorrow’s energy solutions. As a Switcher, you join a global network of engineering experts, working on flagship projects. Your future team will empower you to deliver critical design support in high-impact environments.

Job Description

The Job Mission

You will join the Joint Design Office onsite, supporting the engineering layout team. Your role is to assess and manage site-driven design changes, ensuring technical integrity across disciplines. Collaborating closely with construction and design offices, your input will directly influence the efficiency of plant installation.

⚡️ Assess if site changes impact plant layout and design intent

⚡️ Analyse multidisciplinary impacts and provide well-justified technical solutions

⚡️ Liaise with HVAC, piping, electrical and civil teams on interface issues

⚡️ Propose layout modifications in 3D models, with CAD team support

⚡️ Ensure alignment with installation tolerances and design documentation

⚡️ Engage with RD Back-Offices, NNB and contractors to deliver agreed changes

⚡️ Monitor, track and report layout modifications in line with the change process

⚡️ Capture lessons learnt and contribute to technical discussions in layout team

Qualifications

Essential:

Degree-qualified with years of engineering experience

Skilled in 3D model software, particularly Navisworks

Strong understanding of plant layout and installation rules

Familiarity with nuclear site safety and operational considerations

Experience with 3D model reviews for layout impact

Confident using Microsoft Office tools

Fluent in spoken and written English

Desired:

✔️ Experience in plant layout coordination or design

✔️ Familiarity with UK nuclear regulatory standards

✔️ French skills

✔️ Proficiency with additional CAD and 2D software

Additional Information

Join us to help shape one of the most complex energy infrastructure programmes in the world. At Assystem, your missions matter – this is your opportunity to bring critical engineering value to one of the largest low-carbon energy builds in Europe.

Benefits include:

Pension scheme (8% company contribution / 4% personal contribution)

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

Professional fees reimbursed

Flexible working

Generous employee referral schemeWe are committed to equal treatment of candidates and promote, as well as foster all forms of 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