Principal Civil Engineer

SmartRecruiters, Inc.; Bolton; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Pension scheme

25 days’ annual leave + bank holidays

Professional fees reimbursed

Job summary

Assystem seeks experienced Principal and Senior Principal Civil Engineers to join its Fusion and Modular Nuclear team in the UK and internationally. You will shape safety-related and conventional civil structures for SMR/AMR and fusion facilities, leading multidisciplinary design through concept to commissioning.

You will mentor teams, engage with regulators and clients, and drive innovative, cost-efficient engineering solutions across major nuclear programmes.

Qualifications

• Significant post-qualification experience within nuclear new build, SMR/AMR or similar large-scale projects.
• Proven leadership of civil and structural engineering activities across the full project lifecycle.
• Strong knowledge of Eurocodes, British Standards and international design standards where relevant.
• Experience in analysis and design of reinforced concrete and steel structures with substantiation.
• Familiarity with seismic design, dynamic analysis, hazard assessment and resilience considerations.
• Understanding nuclear safety principles and ONR guidelines.
• Champion MMC from project inception to improve off-site manufacturing and efficiency.
• Knowledge of power plant layouts and asset protection strategies.
• Delivery-focused mindset with ability to influence senior stakeholders.
• Excellent client-facing communication and collaboration skills.

Responsibilities

• Lead analysis and design for nuclear safety-related and conventional civil structures.
• Develop engineering solutions for structures under seismic and environmental loading.
• Oversee and approve technical deliverables, calculations, models, drawings.
• Act as Lead Civil Engineer, Technical Authority or SME.
• Ensure compliance with UK/international codes, standards and safety principles.
• Support development of safety cases and hazard assessments.
• Participate in multidisciplinary design reviews and integration efforts.
• Support client engagement, proposals, and business development.
• Mentor engineers and support chartership development.

Skills

Nuclear project experience

Technical leadership

Seismic design

Eurocodes & standards

Reinforced concrete & steel

MMC / off-site construction

Risk & safety assessment

Stakeholder management

Communication skills

Education

Master’s in Civil/Structural Engineering

Chartered Engineer (ICE/IStructE)

Job description

Assystem is an international company with one mission: accelerate the energy transition around the world.

Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, our 8,000 personnel in 12 countries provide our customers with engineering and project management services, as well as digital services and solutions to optimise the performance of complex infrastructure projects throughout their life cycle.

The Group is currently ranked second in the world for nuclear engineering.

Our goal is to ensure a viable, efficient, and reliable energy future for all.

Job Description

We are seeking experienced Principal and Senior Principal Civil Engineers to join our Fusion and Modular Nuclear team. This is a unique opportunity to strengthen our ever-growing Civil, Structural and Architectural (CS&A) capability within Assystem, supporting the design and delivery of complex nuclear facilities for exciting SMR, AMR and Fusion developments in the UK and internationally.

In this role, you will help shape the future of nuclear infrastructure through integrated, innovative and resilient engineering solutions. Working within multidisciplinary teams, you will contribute to the development of major nuclear facilities from concept and optioneering through to detailed design, construction and commissioning. Your work will encompass site development and masterplanning, hazard assessment, safety case substantiation, advanced structural analysis, constructability, sustainability and operational performance.

You will provide technical leadership across a diverse portfolio of projects, working closely with clients, regulators, contractors and delivery partners to develop safe, efficient and cost-effective engineering solutions. The role offers significant opportunity to influence major programmes and contribute to the growth of Assystem's nuclear capability.

Job Description

On a day-to-day basis, you will:

Lead the analysis and design for both nuclear safety-related and conventional civil structures, including both above-ground and below-ground facilities

Lead the development of engineering solutions for structures subjected to seismic, environmental and accidental loading conditions

Oversee, review and approve technical deliverables, including engineering calculations, analysis reports, finite element models, specifications and drawings, in accordance with our quality assurance requirements

Act as a Lead Civil Engineer, Technical Authority or Subject Matter Expert, providing technical leadership and independent review where required

Ensure engineering solutions comply with applicable UK and international codes, standards, regulatory requirements, nuclear safety principles and environmental and health & safety requirements

Support the development of nuclear safety cases, including hazard assessments and the derivation of civil and structural safety functional requirements

Participate in multidisciplinary design reviews, ensuring effective integration of civil engineering solutions with architectural, mechanical, process, electrical, I&C, safety and geotechnical disciplines

Support clients in fulfilling their Intelligent Customer responsibilities, providing trusted technical advice on strategic civil engineering matters

Support business development activities, proposal preparation and client engagement, helping to expand Assystem's presence within the nuclear sector

Mentor and develop engineers across the team, fostering technical excellence and supporting professional development and chartership

About You

You will bring strong technical leadership, sound engineering judgement and the ability to work effectively in complex, multi-disciplinary environments. You will be passionate about delivering high-quality engineering solutions that support the safe, efficient and sustainable deployment of next-generation nuclear facilities. We are looking for someone with:

• Significant, demonstrable, post-qualification experience within nuclear new build, SMR/AMR or other large scale, complex and highly regulated programmes

Proven experience leading civil and structural engineering activities throughout the full project lifecycle, from concept development and optioneering through to detailed design, construction and commissioning

Strong knowledge of applicable engineering codes, standards and regulations, including Eurocodes, British Standards and, where relevant, international design standards such as ACI, AISC and ASCE

Experience in the analysis and design of reinforced concrete and steel structures, supported by an understanding of engineering substantiation and structural integrity assessments

Experience or familiarity with seismic design, dynamic analysis, external hazards assessment and structural resilience considerations

An understanding of nuclear safety principles and their application to civil and structural engineering design, including familiarity with ONR Safety Assessment Principles and Technical Assessment Guides

The ability to champion and embed Modern Methods of Construction (MMC) from project inception, shaping design strategies that optimise off-site manufacturing, modularisation, construction efficiency and programme costs

Familiarity with power plant layouts and operational requirements, including strategies for asset and investment protection

Experience in supporting site evaluation and site characterisation early-stage development activities for major infrastructure or energy projects would be advantageous

A delivery-focused mindset, with the confidence to influence senior stakeholders

Excellent communication and client-facing, skills, with a collaborative approach to guiding and developing colleagues

A passion for shaping the next generation of nuclear and clean energy infrastructure

Qualifications

A Master’s degree in Civil Engineering, Structural Engineering or a related engineering discipline

Chartered Engineer status (ICE, IStructE or equivalent recognised professional institution)

Additional Information

Why Apply?

Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where yourexpertiseand leadership will drive global innovation.

Benefits include:

• Pension scheme (8% company contribution / 4% personal contribution)
• 25days’paid annual leave + bank holidays +optionto buy or sell days
• Professional fees reimbursed

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.