Lead Civil Engineer

The UK’s nuclear sector has entered a renaissance, with Nuclear Energy now a vital component as the country moves towards a target of Net Zero.

Assystem provides critical support to this mission, accelerating the decommissioning and remediation of our legacy assets with a view to enabling a swifter energy transition, in parallel overcoming some of the largest engineering and environmental challenges of our generation.

As a Global top 3 independent nuclear engineering organisation, Assystem is active across the full decommissioning lifecycle. In the UK, we work across the Civil and Defence nuclear estates, pioneering agile and fit‑for‑purpose, customer‐focused solutions, drawing on our established pedigree for delivery engineering excellence. Assystem have a proud heritage gained over decades both in the UK and overseas, (delivering, supporting, managing) some of the most complex engineering projects in decommissioning, repurposing legacy assets and key new build projects such as Hinkley Point

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Position Overview: The Lead Civil/Structural Engineer will be working as part of our client team to deliver a range of major infrastructure projects.

Drive complex engineering projects from concept to completion in a high-assurance environment. This role is hands‐on, stakeholder-facing, and central to safe, compliant delivery.

What you’ll do:

• Lead and manage contractor engineering support across the project lifecycle
• Review, approve, and assure designs, drawings, and technical documentation
• Shape functional requirements and support optioneering and design decisions
• Deliver safety‐critical outputs, including Periodic Review of Safety reports
• Chair and contribute to design reviews, HAZID workshops, and stakeholder forums
• Provide independent technical appraisal and peer review (ITA/IPR)
• Oversee detailed design, construction, commissioning, and decommissioning activities
• Ensure full compliance with EHS, Security, Quality, and site standards
• Act as a trusted technical advisor to internal teams and external partners
• Contribute to capability building and specialist training within your discipline

• Proven experience delivering civil / structural engineering on complex, high‐hazard projects
• Strong background in design assessment of structures and equipment to withstand safety and hazard conditions
• Demonstrated experience developing and applying design assurance frameworks for complex engineering programmes
• Theoretical and practical expertise across the full engineering lifecycle, ideally within industrial and/or maritime environments
• Confident stakeholder engagement across multidisciplinary engineering teams
• Experience contributing to multi‐discipline projects, including provision of electrical engineering input (ideally defence and/or nuclear)
• Experience working within a comparable high‐risk, regulated environment
• Familiarity with safety case development, including HAZID / HAZOP studies
• Experience with in the UK nuclear sector (energy or defence), particularly safety‐related structures and components
• Working knowledge of UK and US nuclear regulation, codes, and standards
• Experience across nuclear, civil, and defence sectors

• Accredited Degree in Civil or Structural Engineering (or equivalent qualification and experience)
• Relevant qualifications and experience in marine and mechanical engineering
• Chartered Engineer (CEng) status
• Master‐s‐level accredited degree or equivalent advanced qualification

Why Join the Switchers Community?

• A dynamic career management policy to enable our employees to progress through our five business lines: operations, project, technical, sales and support functions
• Provide opportunities to work on exciting, global projects
• Access to an employee assistance programme with free mindfulness, health and wellbeing resources and a confidential support line available 24/7 via phone or text
• Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle to work scheme, free flu jabs
• Enhanced sick pay

Limited travel to the main Client operational bases site near Helensburgh may be required, for example for Facility Walkdowns,…