Senior Commercial Lead - Infrastructure & Data Centres

Onnec; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

ONNEC Group in London is seeking a Managing Quantity Surveyor to lead the commercial and financial performance of major infrastructure and data centre projects.

You will mentor QS teams, manage cost reporting, procurement, and variations, and ensure governance and risk controls while working with clients and supply chain.

This hands-on leadership role requires strong negotiation skills, NEC/JCT knowledge, and a proactive approach to improving processes and project delivery.

Qualifications

• Senior QS or commercial leadership experience in construction, infrastructure, or data centres.
• Strong forecasting, budgeting, and cost-control skills.
• Experience leading and developing commercial teams.
• Excellent stakeholder management and negotiation abilities.
• Knowledge of NEC/JCT contracts and commercial risk management.

Responsibilities

• Lead the commercial and financial performance of major infrastructure and data centre projects.
• Mentor and develop Quantity Surveyors and commercial teams.
• Oversee governance: cost reporting, valuations, procurement, variations, cashflow, audits.
• Collaborate with project managers, planners, clients, contractors and leadership to deliver projects.
• Support contract management, risk mitigation, final accounts and settlements.
• Lead stakeholder engagement during reviews, meetings and bids.
• Drive improvement of commercial processes, governance and reporting.
• Align planning functions with programme management and controls.
• Promote early resolution of disputes and proper contract administration.
• Contribute to long-term commercial strategy and growth.

Skills

Senior QS

Commercial leadership

Forecasting

Budgeting

Stakeholder management

NEC/JCT contracts

Team development

Data centre experience

Infrastructure projects

Job description

ONNEC Group in London is seeking a Managing Quantity Surveyor to lead the commercial and financial performance of major infrastructure and data centre projects.

You will mentor QS teams, manage cost reporting, procurement, and variations, and ensure governance and risk controls while working with clients and supply chain.

This hands-on leadership role requires strong negotiation skills, NEC/JCT knowledge, and a proactive approach to improving processes and project delivery.