Project Buyer - Subcontractor Specialist in London

ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing to our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity? Come and join us in building the infrastructure our planet needs to achieve a sustainable future.

We are seeking an experienced Project Buyer to join a major water infrastructure project based at Coppermills WTW. This role is critical to ensuring effective procurement delivery, robust contractual governance, and strong subcontractor performance across multidisciplinary packages. You will play a key role in end-to-end procurement, working closely with Engineering, Construction, and Commercial teams while managing NEC3/NEC4 contractual processes in a live project environment.

Key Responsibilities

• Procurement & Tendering: Develop and implement procurement strategies across key packages, including civils, MEICA, pipelines, and process equipment. Prepare and issue RFQs/RFPs in line with project requirements. Lead tender evaluations (commercial and technical), negotiate terms, and present award recommendations. Draft, review, and finalise subcontract agreements under NEC3/NEC4 frameworks.
• Subcontractor & Supplier Management: Manage onboarding and performance of subcontractors and suppliers across civils, mechanical, electrical, ICA, and specialised process equipment. Lead supplier engagement, progress reviews, and performance monitoring (KPIs). Ensure compliance with HSE, quality, and contractual requirements. Oversee the delivery of key water infrastructure assets such as pumps, valves, and pipelines; chemical dosing systems; electrical and control systems; OEM equipment packages.
• NEC Contract Administration: Support Project Managers with early warnings, compensation events, programme reviews and updates, NEC-compliant communications. Maintain accurate and auditable documentation in line with NEC governance. Monitor and manage contractual risks, variations, and cost exposure.
• Value & Commercial Management: Undertake supplier market analysis within the water sector. Support cost benchmarking, value engineering, and negotiation strategies. Contribute to forecasting, reporting, and risk registers alongside Commercial/QS teams. Support the development of commercial dashboards and performance insights.
• Compliance & Governance: Ensure alignment with internal procurement procedures, corporate governance requirements, and obligations under the Client contract.

Required Skills And Competencies

• 3+ years of procurement, subcontracting, or commercial engineering experience in water utilities, wastewater, or broader utilities/infrastructure.
• Demonstrable experience managing or administering NEC3/NEC4 contracts on UK projects.
• Strong experience with MEICA procurement, civils subcontracting, or process-equipment sourcing.
• Skilled in negotiations, commercial analysis, and supplier management.
• Proficient in Excel and digital procurement systems.

Desirable

• NEC accreditation (Project Manager / Supervisor) or formal NEC training.
• Technical understanding of water/wastewater treatment processes or distribution networks.
• CIPS/MCIPS qualification or progress toward accreditation.
• QS/Commercial awareness (valuations, forecasting, cost reporting).

Key Competencies

• Clear communication with technical and commercial stakeholders.
• Strong organisational capability across simultaneous work packages.
• Rigorous NEC documentation and change-management discipline.
• High attention to detail and a proactive, solutions-focused approach.

Equal Opportunity Employer Statement

As a company that values diversity as a source of talent, we work to foster an inclusive environment that promotes respect, belonging and engagement so that all people can participate on an equal opportunity basis. We invite everyone to apply regardless of origin, circumstances, background or condition.