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. Overall, whilst the Company is in the construction phase, the Boards' 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 Regulated Asset Base (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.
Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK's largest and most important energy projects. We are now recruiting the below position.
Lead Commercial Manager
Location: Bristol, London or Manchester on a hybrid basis
Contract: Permanent, full-time.
Closing Date: Friday 5th June 2026
What's in It for You
* Salary: Starting salary from £90,000 (depending on experience)
* Performance Bonus: 10% annual
* Car allowance: £6,900
* Holiday: 28 days + bank holiday
* Pension: Up to 7.5% employee / 15% employer contribution
* Flexible benefits & hybrid working option
We're building the future, and we need the best and most experienced Commercial Leaders to make it happen. Sizewell C is a once-in-a-generation infrastructure project that will power Britain's energy security and net‑zero ambitions for decades to come. Following our recent Final Investment Decision, manufacturing and construction is well underway. This is a unique chance to be part of the largest investment in homegrown clean energy in decades, delivering low‑carbon electricity to 6 million homes for at least 60 years.
What to expect
* A robust career path that will challenge and fulfil your ambition with clear progression and development opportunities
* A unique opportunity to shape a major infrastructure project with national impact
* Hybrid working with flexibility to succeed as an individual
* A market leading package with a competitive salary, bonus and benefits
* A supportive and collaborative team environment
* A learning environment with training and personal development supplemented by further training and qualifications
Your Impact
As a Commercial Lead, you'll take ownership of some of the most significant and complex commercial packages on the project in CI/BoP covering the largest turbine in service in the world civil and nuclear construction works, major equipment, and enabling contracts. You'll lead procurement, negotiation, and post‑award commercial management, working with key suppliers, regulators, and Tier 1 contractors. You will hold a key leadership role, shaping strategy, mentoring teams, and ensuring delivery aligns with project goals, contract requirements, and nuclear safety standards and delivery on the on‑time, on‑budget vision.
Typically what you will be expected to do
Procurement
* Lead highly complex procurement activities
* Manage single source/competitive tendering and contract negotiation, leading to contract award
* Ensure value for money, transparency, and compliance
Post‑Award Contract Management
* Drive supplier performance and governance
* Mitigate risks and resolve commercial issues
* A proactive dispute management role focusing on dispute avoidance
* Provide strategic oversight across your portfolio
Supplier Development
* Take an active involvement in promoting Supplier Development and Supplier Relationship
Leadership
* Build and lead high‑performing teams
* Support and be a leader for team wellbeing
* Act as a key interface with regulators, external stakeholders and all delivery partners
* Embed collaboration and best practice across the supply chain and across the project
* Be an ambassador for project safety and people culture, and set an example for the project
Experience and Qualifications
* Senior‑level experience in commercial or supply chain roles on major complex infrastructure, energy and technology projects
* Expertise in procurement and post contract management
* A good understanding of dispute avoidance and effective management
* Strong knowledge of NEC and/or FIDIC contracts
* Chartered status (RICS, ICE, CICES, IOB, CIPS or equivalent)
* Exceptional stakeholder management and negotiation skills
Qualifications
* Ideally Degree‑qualified or equivalent
* Preferably experience in nuclear or regulated industries
* Understanding of the UK nuclear regulatory environment and supply chain landscape
* Familiarity with safety case and licence conditions in regulated industries
Behavioural Competences
Humility
* Recognise the value brought from different cultures and experiences.
* Be open to other's points of view and ideas, be willing to debate and to compromise.
Positivity
* Positively challenge poor quality and performance.
* Identify solutions at the lowest possible level.
* Encourage others to bring new ideas forward.
Respect
* Value the rules and environment in which we operate.
* Give and receive feedback with respect.
* Embrace and engage with new people and ideas.
Solidarity
* One team, working closely together and helping each other.
* Empowered teams always looking forward.
* Shared responsibility for delivery the project outcomes.
Clarity
* Communicate clearly and consistently.
* Promote collaboration and team alignment.
* Clearer and faster decision making.
* Drive simplification at all levels.
If this sounds like the next step in your career, we'd love to hear from you. Apply today.
When joining Sizewell C, you may wonder why you are contacted by colleagues with an EDF email or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group.
At Sizewell C we encourage and embrace diversity and how it can improve our experience and performance at work. It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK.
To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years.
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