️ About Assystem

Assystem is a global leader in engineering, dedicated to accelerating the energy transition. In the UK, we are powering major low-carbon infrastructure programmes including landmark projects such as Hinkley Point C, Sizewell C, and Small Modular Reactors. With over 7,500 Switchers combining deep engineering expertise and digital innovation, we are helping build a cleaner, more sustainable future through world-class nuclear projects.

Why Join the Community of Switchers?

Joining Assystem means becoming part of one of the world’s top three nuclear engineering companies. You will collaborate with forward-thinking engineers, working on pioneering energy programmes. At Assystem, you’ll be part of a dynamic team committed to innovation, sustainability, and meaningful impact across the global energy sector.

Job Description

The Job Mission
As a Piping Layout Engineer, you will play a key role in supporting the Hinkley Point C (HPC) project. You will be responsible for assessing, reviewing, and optimizing the piping layout design to support construction activities, ensuring compliance with design standards and site requirements.

Your future team’s key missions:

• Evaluate layout impacts of site requests and design modifications.
• Produce technical assessments and justifications for piping layout solutions.
• Develop and modify 3D models using E3D/PDMS to support layout design.
• Ensure compliance with installation tolerances and construction constraints.
• Coordinate with other disciplines (Mechanical, Civil, Structural) on layout interfaces.
• Liaise with design back-office teams and site construction teams to resolve layout issues.
• Initiate change processes to implement approved layout modifications.
• Report progress and challenges to the Layout Team Lead, raising any technical concerns.

My profile

• Extensive experience as a Piping Layout Engineer in heavy industrial sectors (Nuclear, Oil & Gas, Steel Manufacturing, or similar).
• Proficiency in E3D/PDMS for 3D piping layout design and visualization.
• Strong understanding of plant layout engineering and general layout rules.
• Ability to assess and resolve layout-related site requests.
• Strong problem-solving skills with experience in multi-discipline coordination.
• Qualified to Degree Level (or equivalent) in a relevant engineering discipline.
• Experience working on nuclear projects and understanding of nuclear safety principles.
• Knowledge of UK regulatory processes and nuclear design context.
• Familiarity with other 3D/2D software used in plant layout engineering.

Why Apply?
This is your opportunity to work on one of the largest nuclear projects in the UK, contributing to a cleaner energy future. Join a company that values innovation, collaboration, and technical excellence, while working alongside some of the best engineers in the industry.

Benefits include:

Benefits include:
Hybrid Working Opportunity
Flexible working hours
️ 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.

Are you a prospective or recent graduate?

Assystem offers you the opportunity to join our Switch to Grow UK Graduate Scheme, where you’ll gain hands on experience in engineering, digital services, and project management by working on some of the world’s most critical energy projects.

Be part of the challenge of the century; accelerating the switch to low carbon energy!