HPC Jobs Service
Commercial Manager (Sizewell C)
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Commercial ManagerSizewell C
Contract Type:
Permanent - Office-based with hybrid flexibility (typically 3 days p/w in the office)
Working Pattern:
Full time
Closing Date:
Thursday 30th July 2026
Location:
London
Salary:
Circa £66,000 depending on experience
Bonus:
5% annual incentive
Pension:
Up to 7.5% employee contribution / 15% employer contribution
Holiday:
28 days plus bank holidays
Benefits:
Flexible benefits
Impact:
We're looking for an experienced commercial professional with a strong track record in major infrastructure, engineering, or construction projects. Ideally, you'll have experience within heavy civils and knowledge of NEC3/NEC4 contracts. You'll be confident managing commercial activities across allocated contracts or work packages, supporting project teams, assessing change, managing risk, and helping to deliver successful commercial outcomes.
Your role will be to:
- Manage the commercial administration of allocated contracts and work packages within major infrastructure projects.
- Administer NEC3 and NEC4 contracts, ensuring compliance with contractual obligations and project procedures.
- Prepare and manage commercial documentation, including early warning notices, compensation events, payment assessments, and programme submissions.
- Review and evaluate quotations, subcontractor submissions, and change proposals.
- Support the preparation of position papers, commercial reports, forecasts, and cost analysis.
- Work collaboratively with project, engineering, procurement, and supply chain teams to ensure effective commercial delivery.
- Identify, manage, and mitigate commercial risks and opportunities.
- Build strong relationships with internal and external stakeholders, providing clear commercial advice and support.
- Contribute to cost control, change management, and commercial governance processes.
- Support senior commercial leadership in achieving project and business objectives.
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What You'll Bring
- Proven experience working within commercial management on major construction, infrastructure, engineering, or heavy civils projects.
- Good working knowledge of NEC3 and/or NEC4 contracts.
- Strong commercial awareness, contract management, and negotiation skills.
- Experience preparing and administering compensation events, early warnings, and payment applications.
- Ability to analyse commercial data and provide clear recommendations.
- Strong stakeholder management and communication skills.
- Knowledge of UK contract law and procurement practices.
- Degree-qualified or equivalent industry experience.
- Professional membership (RICS, ICES, CIOB, CIPS) desirable or working towards chartership
Why Join Us
- 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
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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.
For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.
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