Senior Process Piping Engineer

Assystem is a global engineering group with one mission: to accelerate the energy transition worldwide. With over 7,750 Switchers in 12 countries, we combine deep engineering expertise and cutting-edge digital innovation to deliver complex infrastructure safely and efficiently. With 55+ years of experience, Assystem plays a key role in delivering safe, low-carbon energy across the nuclear sector.

Why Join the Community of Switchers?

Join one of the world's top three nuclear engineering companies and contribute to shaping a low-carbon future. At Hinkley Point C, you'll work alongside some of the brightest minds in engineering, helping to optimise project delivery, system performance, and commissioning outcomes.

The Job Mission

This is a key leadership role within Assystem's site-based delivery team at Hinkley Point C.
You will lead piping integration across systems and work-fronts on a mega-scale nuclear project.
You will ensure readiness for commissioning and drive engineering alignment on-site.

? Lead end-to-end piping integration from engineering to commissioning
? Oversee interface control and system freeze boundaries across MEH disciplines
? Review and approve system change requests and late-stage design deviations
? Collaborate with HVAC, Electrical and Commissioning leads for cross-discipline alignment
? Act as site-facing piping technical authority and escalation point
? Ensure installation activities align with engineering design and sequencing
? Conduct technical reviews with MEH delivery contractors to assess readiness
? Support real-time decisions that affect progress on critical path systems

Essential Skills
Degree in Mechanical, Process or similar engineering field
10+ years piping/process experience in nuclear or large energy projects
Site-based integration experience with high-integrity systems
Strong knowledge of piping construction and commissioning practices
Experience with freeze boundary and change control management
Stakeholder-facing role with strong communication skills
Ability to assess installation and commissioning readiness

Desired Skills
? Knowledge of HO3/HO4 system completion processes
? Familiarity with EPR design and configuration
? Experience working with MEH Alliance contractors
? Experience in cross-discipline coordination (MEH systems)
? Previous experience on HPC, Sellafield, or Flamanville

Help Shape the Future of Clean Energy

This is your chance to join your future team on one of Europe's most advanced energy missions. Apply now to help deliver complex, safety-critical systems at the heart of the UK's energy future.

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.

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!