Commercial Manager

Hollybank Trustees Ltd; Sizewell; On-site; GBP 90,000 - 130,000; Full time

Job summary

S&B Utilities is seeking a Commercial Manager to provide commercial leadership for Sizewell C projects, from concept through procurement, construction, commissioning and handover. You will protect the business's commercial interests, manage budgets and lead governance for NEC contracts and variations.

The role requires extensive experience on large infrastructure programs, strong financial reporting, and the ability to manage diverse stakeholders and teams.

Qualifications

• Minimum 10 years' commercial management experience within major infrastructure, utilities, industrial, energy or construction projects.
• Significant NEC contract management experience with strong cost control, forecasting and change management.
• Degree in Quantity Surveying, Commercial Management, Construction Management, Law, Engineering or related discipline.
• MRICS, MCICES, MCIOB or equivalent membership, or working towards.
• Proven ability to manage commercial teams, suppliers and stakeholders.
• Strong financial reporting, forecasting and risk management capability.
• Demonstrable experience managing projects valued at £20m+.
• Desirable: nuclear, water treatment, wastewater or major UK infrastructure programmes.

Responsibilities

• Lead commercial management of major infrastructure projects from design through handover.
• Manage NEC contracts, compensation events, variations and compliance.
• Develop and maintain budgets, forecasts and cost plans.
• Monitor commercial performance and identify cost-saving opportunities.
• Oversee subcontractor and supplier relationships, procurement and tenders.
• Lead commercial risk and opportunity management activities.
• Support claims avoidance, disputes and governance.
• Produce reports, cashflow forecasts and performance metrics for senior stakeholders.

Skills

Experience

NEC contract management

Leadership

Analytical skills

Contract management

Cost control

Forecasting

Risk management

Stakeholder management

Project experience £20m+

Desirable: nuclear/major UK infra

Education

Degree in Quantity Surveying / Commercial Management / Construction Management / Law / Engineering

Job description

Location: On site / Sizewell, Leiston, UK

job type: Permanent / Full-time

Sector and subsector: Engineering | General

Salary: Competitive salary

CONTRACT TYPE: PERMANENT

SALARY: COMPETITIVE

CLOSING DATE: 23 RD SEPTEMBER 2026

The Commercial Manager is responsible for the commercial leadership, governance and financial management of the Foul Treatment Plant (FTP) and Potable Water Plant (PWP) project at Sizewell C Nuclear Power Station from concept design through procurement, construction, commissioning and final handover.

The role will ensure the project is delivered in accordance with contractual requirements, commercial objectives, budgetary controls and programme commitments while protecting the commercial interests of the business and supporting successful project delivery.

The role briefly encompasses the following duties but is not limited to: -

• Leading the commercial management of major infrastructure projects from design through to final handover.
• Managing NEC contracts, compensation events, variations and contractual compliance.
• Developing and maintaining project budgets, forecasts and cost plans.
• Monitoring commercial performance and identifying cost-saving opportunities.
• Managing subcontractor and supplier relationships, including procurement and tender evaluations.
• Leading commercial risk and opportunity management activities.
• Supporting claims avoidance, dispute resolution and commercial governance.
• Producing commercial reports, cashflow forecasts and performance metrics for senior stakeholders.

The ideal candidate will possess the following skills/experience/ attributes:

• Experience: Minimum 10 years' commercial management experience within major infrastructure, utilities, industrial, energy or construction projects.
• Commercial Expertise: Significant NEC contract management experience with strong knowledge of cost control, forecasting and change management.
• Qualifications: Degree in Quantity Surveying, Commercial Management, Construction Management, Law, Engineering or a related discipline.
• Professional Membership: MRICS, MCICES, MCIOB or equivalent professional membership, or working towards.
• Leadership: Proven ability to manage commercial teams, suppliers and key stakeholders.
• Analytical Skills: Strong financial reporting, forecasting and risk management capability.
• Project Experience: Demonstrable experience managing projects valued at £20m+.
• Desirable: Experience within nuclear, water treatment, wastewater treatment or major UK infrastructure programmes.

What we do:

S&B Utilities is committed to providing reliable and efficient mechanical and electrical services to our community. With a focus on innovation and sustainability, our expertise spans all aspects of water treatment, from clean to wastewater, ensuring your systems run smoothly and efficiently.

We also offer comprehensive civil engineering services, including:

MEICA (Mechanical, Electrical, Instrumentation, Control, and Automation)

Our devoted team is focused on providing exceptional solutions customised to fit our clients requirements. Here at S&B Utilities, our main priorities are excellence and reliability.

Joining S&B Utilities means becoming part of a team that values collaboration, diversity, and professional development.