Commerical Manager - Equipment (Sizewell C)

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Employing Company:
Sizewell C

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Commercial Manager – Equipment
Sizewell C

Location:

London, Bristol, Ipswich & Manchester

Contract:

Permanent, full-time.
Closing Date:
Tuesday 11th August 2026

• Salary:
  Circa £66,866 per annum (depending on experience)
• Bonus: 5% annual incentive
• Pension:
  Up to 7.5% employee / 15% employer contribution
• Leave: 28 days holiday plus bank holidays
• Hybrid Working:
  Typically, 2–3 days in the office per week, with flexibility based on business needs

We’re looking for a seasoned commercial professional with experience delivering major programmes, ideally within large-scale engineering and infrastructure projects valued between £10m and £100m+. Experience in industries such as Energy (Nuclear, Wind, Solar, Oil and Gas), Data centres and the like will be highly regarded. You’ll bring an understanding of construction technology, cost drivers, and supply chain management, combined with a strong working knowledge of FIDIC (highly desirable) and NEC3/NEC4 contracts;

particularly in contract management and administration. Your ability to draft position papers, evaluate variations, evaluate complex quotations, manage risk and produce clear commercial reports will set you apart.

• Provide commercial management of major contracts within large scale engineering and infrastructure projects.
• Administer FIDIC Contracts, ensuring compliance with contract conditions and effective delivery.
• Prepare and maintain key contract documentation, including early warning notices, variations and claim responses.
• Understand and administer price fluctuation clauses.
• Draft position papers, prepare commercial reports and author change events to support project decisions.
• Apply your understanding of construction technology, cost drivers and supply chain management to optimise outcomes.
• Support direct reports and early-career team members, to build capability across the commercial function.
• Engage confidently with stakeholders, providing clear advice and updates.
• Engage with team members and contractors in a confident, professional, and collaborative manner, fostering constructive relationships while assertively ensuring that the client’s contractual rights and obligations are always protected.
• Take ownership of challenges and deliver solutions from start to finish with limited need for direction.
• Contribute to strategic commercial planning and decision-making to support project success.
• Support and contribute to ongoing continuous improvement initiatives.

• Proven experience in major projects and ideally FIDIC or NEC3/4 contracts
• Strong commercial, negotiation, influencing, communication and stakeholder management skills
• A mindset for team-working, innovation and collaboration
• Experience of CEMAR Contract Management platform desired but not essential
• Knowledge of UK contract law and procurement best practices
• Degree or equivalent experience
• Professional membership (RICS, CICES, IOB, CIPS) desirable

• A major infrastructure project with national impact
• Hybrid working with flexibility built in
• Competitive salary, bonus and benefits
• Clear progression and development opportunities
• Supportive, collaborative team environment

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

Positively challenge poor quality and performance

Identify solutions at the lowest possible level

Encourage tier 1s and others to bring new ideas forward

Value the rules and environment in which we operate

Give and receive feedback with respect

Embrace and engage with new people and ideas

Empowered teams always looking forward.

Shared responsibility for delivery the project outcomes

Communicate clearly and consistently

Promote collaboration and team…