Our client is a leading supplier of construction site consumables to the housebuilding and wider construction industries. As they continue to grow, they are looking for a commercially minded and detail-focused Buyer to join their team at their offices in Doncaster. This is an excellent opportunity for someone already in their procurement career who is ready to take ownership, build strong supplier partnerships, and make a measurable impact within a fast-paced and ambitious business.If you are analytical, driven, and motivated by improving performance and delivering commercial value, we would love to hear from you.The RoleWorking closely with the Procurement Director and wider commercial team, you will play a key role in strengthening supplier relationships, improving stock efficiency, and supporting margin growth.This is not purely a transactional buying role, you will be involved in supplier engagement, commercial analysis, and continuous improvement initiatives across the supply chain.Key ResponsibilitiesManage and develop relationships with existing suppliers while identifying and onboarding competitive alternative supply partnersSupport commercial negotiations with key supply chain partners, including preparing analysis and presentationsRaise and manage purchase orders to ensure consistent product availability and optimised stock levelsWork closely with the Sales Team to competitively source new, special, and high-volume SKUsContinuously review stock profiles to improve a