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Company Description

⚡️? About Assystem

At Assystem, our mission is to accelerate the energy transition worldwide. With over 55 years in regulated sectors, our 7,750 Switchers apply engineering excellence and digital innovation to deliver energy infrastructure. In the UK, we are leading the charge in nuclear engineering — join us and shape tomorrow’s power systems with one of the world’s top three nuclear engineering companies.

? Why Join the Community of Switchers?

At Assystem, you’ll work alongside experts delivering complex, high-impact energy projects. As one of the world’s top three independent nuclear engineering firms, we’re deeply embedded in landmark programmes like Hinkley Point C. By joining our community of Switchers, you become part of a global movement shaping the low-carbon energy future.

Job Description

? The Job Mission

This Senior Mechanical Engineer role is embedded in one of our flagship nuclear programmes. You’ll ensure engineering compliance and drive construction readiness. Your future team will rely on your leadership across mechanical engineering work scopes.

⚡️ Lead and manage CE’s/Works Coordination Leads to deliver construction workpack scopes
⚡️ Liaise with SMEs and client counterparts to define scope boundaries
⚡️ Own and update Workpacks in line with MEH and project documentation
⚡️ Drive documentation delivery and prioritisation to enable safe construction
⚡️ Promote and demonstrate positive HS&E culture through all project phases
⚡️ Ensure compliance with nuclear safety and licence conditions
⚡️ Coordinate surveying activities and access routing for construction readiness
⚡️ Support Procon, Work Authorisation, and Permit systems implementation

Qualifications

Essential Skills:
? Degree or HVAC trade qualifications with 5+ years' experience
? Relevant professional accreditation in PM, construction, or engineering
? CCNSG Safety Passport and IOSH or NEBOSH qualification
? Experience delivering construction projects in nuclear or regulated sectors
? Proven ability to manage and motivate cross-functional engineering teams
? Strong understanding of MEH scope and document control systems
? Familiarity with nuclear site licence requirements
? Strong leadership in a matrix and JV environment

Desired Skills:
✔️ Experience using Procon, Work Authorisation, and Permit systems
✔️ Construction Workpack delivery on major nuclear sites
✔️ Knowledge of Hinkley Point C or similar projects
✔️ Surveying coordination and access planning experience
✔️ Excellent problem-solving mindset with adaptability in complex environments

Additional Information

? Join us and work on Europe’s most ambitious nuclear project. Your missions will shape a sustainable energy future. Be part of a global team driving innovation, safety, and low-carbon engineering excellence at Assystem.

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