Overview In this role you will lead commercial assurance for Sizewell C’s major heavy civil packages, challenging TOC submissions and ensuring robust procurement, cost planning, and governance. You will work with project, commercial and supply chain teams to provide independent, data-driven assurance that supports informed decisions and successful delivery. This is a senior client-side position in a high‑profile infrastructure programme with a clear focus on value for money and risk management. You will engage senior stakeholders and drive best practice across pre-construction activities.
Responsibilities - Lead commercial assurance reviews of TOC submissions across major heavy civils packages
- Challenge cost estimates, pricing methodologies, commercial assumptions and risk allowances
- Review QSRA/QCRA outputs, contingency allowances and governance compliance
- Support procurement strategy development, TOC preparation, contract reviews and commercial negotiations
- Facilitate assurance workshops, governance forums and commercial review meetings with senior stakeholders
- Assess project risks and opportunities, validating contingency levels and VE proposals
- Ensure commercial submissions are supported by robust evidence and align with governance requirements
- Provide expert commercial advice throughout the pre-construction phase to drive consistency and transparency
Key requirements - Significant experience within major infrastructure or heavy civils projects
- Strong background in pre-construction, estimating, procurement, QS and commercial management
- Experience reviewing, challenging and assuring TOC or target cost submissions
- Working knowledge of QSRA/QCRA methodologies, Monte Carlo risk analysis, contingency management and cost planning
- Experience with NEC and/or PAA contracting models
- Ability to lead commercial assurance reviews, engage senior stakeholders and facilitate governance
- Experience in Tier 1 contractor, consultancy or major project delivery environments
- Degree in Quantity Surveying, Commercial Management, Civil Engineering or related discipline
- MRICS or equivalent accreditation (desirable)
- Stakeholder engagement
- Leadership and facilitation
- Clear communication
- TOC submissions review
- Monte Carlo risk analysis
- QSRA/QCRA methodologies
