Senior Piping Supervisor - Steam Supply Systems

⚡️💡 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

You will join the NSSS team to supervise field installation of nuclear piping systems.

This is a front-line construction delivery role on a major new-build programme.

You’ll drive productivity, ensure quality, and uphold safety on a fast-paced site.

• Supervise daily NSSS piping installation activities to meet site progress targets
• Maintain high safety standards and stop unsafe works where necessary
• Ensure preservation and cleanliness rules are followed in all work areas
• Coordinate with other contractors to manage interfaces and avoid clashes
• Validate installation quality through random checks and permit authorisations
• Monitor critical activities aligned with 4-week lookahead planning
• Support implementation of piping supervision programme and site documentation
• Escalate risks, blockers, and site drift to the NSSS Project Manager promptly

🛠 Essential Skills and Qualifications

• 10+ years in piping installation supervision or similar site-based construction role
• Strong leadership to guide and coordinate contractor installation teams
• Effective communicator with site teams and project stakeholders
• Solid understanding of Health & Safety requirements and CDM Regulations
• Skilled in site progress tracking and resolving installation blockages
• Experience supervising large piping scopes on high-value projects
• Able to work autonomously and escalate issues when needed
• Attention to detail in checking installation against site requirements

✔️ Desired Skills and Qualifications

• Degree in Mechanical Engineering or Welding discipline
• Understanding of PWR (Pressurised Water Reactor) design principles
• Knowledge of fire, height, and hot work permits in nuclear environments
• Background in nuclear or heavy industrial sectors

🌟 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 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.