Senior Commercial Leader – Major Infrastructure & Energy

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 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 and 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.

This role is subject to Sizewell C’s equal opportunities employment policy. Candidates must meet the statutory legal requirements to work in the United Kingdom.