Sizewell C’s business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. While the Company is in the construction phase, the Board’s principal focus is on the development and construction of Sizewell C on time, on budget, and to the highest quality and safety standards. The Company is maturing to meet all these requirements. Sizewell C is economically regulated by OFGEM under the RAB model similar to other UK electricity distribution networks and Thames Tideway. Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C’s ambition. Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.
Key Details
Location: Sizewell C, Leiston, Suffolk (minimum 3 days a week onsite).
Contract: Permanent, full-time.
Salary: £75,000‑£85,000 depending on experience, plus benefits.
Benefits
* 5% CIP bonus
* 28 days holiday, plus bank holidays
* Contributory pension of up to 7.5% employee / up to 15% employer
* Ongoing professional development
* Other lifestyle benefits
Closing date: Sunday 7 June 2026.
About the Role
Join Sizewell C as a Project Manager – Civils, delivering major heavy‑civils work packages within one of the UK’s most significant low‑carbon infrastructure projects. Reporting to a Senior Project Manager, you will lead full lifecycle delivery: engineering, procurement, construction, and commissioning ensuring work is completed safely, on schedule, to budget, and to the highest quality standards. The role holder will be employed by the Client embedded and working within the Civil Works Alliance (CWA). The CWA is formed by Sizewell C, Bouygues, Laing O’rouke and Balfour Beatty and is operating utilising the Australian Project Alliance Agreement (PAA) form of contract. The Civil Works Programme is being delivered by the CWA and comprises a series of projects that will be delivered over a 10‑year period. The Civils Programme will deliver the Sizewell C Civil Engineering scope to support the MEH erection in the Nuclear, Conventional and Heat Sink islands.
The Civil Works Alliance is responsible for delivering: Enabling and Earthworks – sea defences, access facilities, civil engineering work to support site establishment, diaphragm walling around the nuclear plant footprint, dewatering, excavation and earthworks.
Key Responsibilities
* Deliver civils work packages valued between £50m‑£200m across Nuclear, Conventional, and Heat Sink islands.
* Oversee enabling works including earthworks, sea defences, diaphragm walling, dewatering, and excavation.
* Support major deliverables including commencement of dewatering, Big Dig, Beach Landing Facility construction.
* Manage interfaces across design, engineering, construction, and programme teams.
* Lead safety culture, incident investigations, risk reviews, and compliance with permits and consents.
* Ensure quality assurance, audits, NCR/FCR processes, and lessons learned.
* Monitor productivity, programme performance, and progress reporting.
* Manage commercial performance including budgets, forecasting, subcontractor management, TOCs, and risk schedules.
* Support replication of HPC design and adoption of best practice to maximise productivity.
Essential Requirements
* Degree in Civil Engineering or related discipline.
* APM PMQ, PRINCE2, or equivalent qualification.
* Valid CSCS card.
* Proven experience delivering major civil engineering projects in complex, safety‑critical environments.
* Strong stakeholder management and communication skills.
* Ability to lead teams, manage interfaces, and drive multidisciplinary delivery.
* Confident decision‑maker with a collaborative, solution‑focused approach.
* Strong understanding of H&S legislation and CDM Regulations.
* Excellent organisational, coordination, and communication skills.
* Competent user of project management tools and Microsoft Office.
* Experience in civil engineering, infrastructure, construction, geotechnical or earthworks, and major project delivery.
* Knowledge of NEC contracts.
Desirable
* Experience in the nuclear industry.
* Chartered Engineer or Chartered Project Manager.
* Experience in geotechnical or major civils programme management.
* Strong background in design management, procurement, and cost/schedule/risk control.
Additional Information
* Security clearance required.
* Role involves working across site, office, and field environments in the Leiston area.
* Typical tools/systems include Microsoft Office, CEMAR, and APM‑aligned project management tools.
If you’re ready to make an impact, work with purpose, and contribute to one of the UK’s most ambitious infrastructure projects, we want to hear from you. Let’s build a cleaner, greener future together.
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