️ About Assystem

At Assystem, our mission is to accelerate the energy transition worldwide. With 7,500 Switchers across the globe, we combine decades of engineering expertise with cutting-edge digital technologies to power a sustainable future. As one of the top three nuclear engineering companies in the world, we play a crucial role in delivering major energy infrastructure projects, including Hinkley Point C, Sizewell C and SMR's.

Why Join the Community of Switchers?

By joining Assystem, you’ll become part of one of the three largest nuclear engineering companies in the world. We are at the forefront of the UK’s most exciting nuclear construction projects, offering career-defining opportunities in a fast-paced and innovative environment. Our team thrives on collaboration, technical excellence, and a shared commitment to shaping the future of energy.

The Job Mission

This is a senior, site-integrated role focused on piping and mechanical construction delivery at Hinkley Point C. You’ll play a pivotal role in progressing installation within a highly regulated nuclear environment.

We’re looking for candidates with strong, demonstrable experience from UK nuclear projects—be that decommissioning, new build, plant upgrades, fuel cycle or fusion

The role typically involves three days a week on-site in Bridgwater, but we need those with flexibility for five days in periods of peak delivery. We offer relocation support to help you move within commutable distance if required.

Your key responsibilities will include:

* Leading the safe execution of mechanical piping installation within nuclear safety constraints

* Developing, reviewing, and coordinating construction scope documentation aligned to nuclear procedures

* Ensuring first-time-right delivery in line with quality, safety, and configuration control requirements Collaborating with engineering, commissioning, and regulatory stakeholders to resolve complex issues

* Interfacing with walkdown, permit, and readiness functions to drive installation

* Supporting nuclear safety case integration at the point of field execution

* Providing reporting and coordination across multiple installation areas and contractors

* Ensuring rigorous compliance with license conditions and site governance processes

Essential Skills and Qualifications

* Engineering degree or equivalent technical background

* Proven experience in UK nuclear construction, commissioning, or decommissioning

* CCNSG Safety Passport and IOSH Managing Safely or NEBOSH

* Strong understanding of mechanical or piping installation in a nuclear context

* Familiarity with work control processes, permit regimes, and nuclear-grade documentation

* Able to manage scopes within a highly regulated, configuration-controlled environment

* Comfortable operating across multiple workfaces and contractor teams

✔️ Desired Skills

* Involvement in new build programmes, decommissioning projects, SMR/Fusion pilots or fuel cycle facilities

* Working knowledge of nuclear installation standards and safety case integration

* Experience supporting construction within active plant environments or nuclear islands

* Familiarity with walkdowns, open-point resolution, and readiness assessments

* Understanding of working under a Nuclear Site Licence framework

Why Apply?

This is your chance to specialise in one of the most quality-critical aspects of piping delivery on a landmark nuclear programme. If you have a passion for ensuring high technical standards across welded systems and NDT operations, this role will challenge and develop your skills.

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 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