Job Description OverviewThe Commercial Manager is responsible for commercial and financial management across a portfolio of projects delivered under NEC4 contracts. The role ensures robust cost control, forecasting, change management, and contract compliance, while supporting Project Managers and Directors to deliver projects to time, cost and contractual obligations. The role operates across multiple simultaneous commissions, providing consistency of approach to financial governance, contract administration, risk management and reporting, and acting as a trusted commercial adviser to both internal teams and external stakeholders.Your roleLead the commercial management of NEC4 contracts (including PSC and ECC as applicable), ensuring contractual processes are applied consistently and correctly across projects.Manage and administer contractual mechanisms including Early Warnings, Compensation Events, change control, programme impacts and entitlement assessments.Provide commercial advice and challenge to Project Managers on contract risk, compliance, and commercial strategy.Support preparation, review and agreement of contractual correspondence, notices, assessments and records.Maintain a clear audit trail demonstrating compliance with contract conditions and agreed procedures.Establish and maintain robust financial controls across a live portfolio of projects, ensuring consistency in cost management and reporting.Manage project budgets, forecasts, cashflow and earned value, identifying variances and risks at an early stage.Produce accurate, timely and reliable monthly financial reports at portfolio / department level.Support period‑end processes, including accruals, revenue recognition and reconciliation with financial systems.Provide clear commercial performance insight to senior management, highlighting risks, opportunities and trends across the portfolio / department.Lead commercial change management, ensuring that scope changes are identified early, assessed correctly and implemented in line with NEC4 procedures.Maintain commercial risk and opportunity registers, working with Project Managers to develop mitigation strategies.Assess the commercial implications of programme changes, scope growth, resourcing variations and client instructions.Support resolution of commercial issues and disputes through structured, evidence‑based approaches.Work closely with Project Managers, Project Directors and discipline leads to embed strong commercial behaviours across project teams.Act as a key commercial interface with clients and supply chain partners, supporting transparent and professional engagement.Support negotiations and agreement of commercial matters while protecting the organisation’s contractual position.Contribute to a collaborative project culture aligned with NEC principles of mutual trust and cooperation.Ensure projects operate in compliance with internal commercial governance, approval thresholds and delegated authorities.Maintain and improve commercial processes, templates and controls to support consistent delivery across the portfolio.Support audits and internal reviews by providing clear, well‑maintained commercial records.Capture lessons learned and contribute to continuous improvement of commercial management practices.Mentoring of staff and lead the growth of Commercial management team.About youEssential — Strong experience as a Commercial Manager managing projects under NEC4 forms of contract.Proven ability to manage financial controls across multiple concurrent projects or programmes.Sound understanding of cost management, forecasting, change control and commercial risk.Experience supporting Project Managers with commercial strategy and contract compliance.Strong analytical skills with the ability to present clear, concise commercial information to senior stakeholders.DesirableExperience working within public‑sector or regulated client environments.Familiarity with consultancy‑led professional services contracts.Experience contributing to dispute avoidance and issue resolution under NEC contracts.Rewards & benefitsEnjoy competitive salaries and a brilliant range of health, wellbeing, financial and lifestyle benefits. Make the most of a myriad of opportunities for training and professional development to grow your skills and expertise. And combine our hybrid working culture, international remote working opportunities, and flexible holiday allowances to balance a great job and fulfilling personal life.Equal OpportunitiesAs an Equal Opportunities Employer, we value applications from all backgrounds, cultures and ability.
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