Senior Category BuyerLocation: Warwick or Castle Donington (Hybrid - 1 day per week on-site)Day Rate: From £550 (via Umbrella)Duration: 12-Month Initial ContractWe''re supporting a leading UK energy transmission and infrastructure organisation in the search for a Senior Category Buyer to play a key role in delivering strategic procurement across major infrastructure programmes. This is an opportunity to work on nationally significant, high-value projects, shaping supply chain strategy and driving commercial outcomes across complex, capital-intensive categories.The Role:As a Senior Category Buyer, you will operate at the centre of strategic sourcing activity, working closely with Category Managers and senior stakeholders to deliver end-to-end procurement across critical categories. You will lead sourcing events, develop category strategies, and negotiate complex commercial agreements to secure best value while managing risk.This role sits within a highly regulated, large-scale environment, offering exposure to technically complex procurements across areas such as engineering equipment, infrastructure, and associated services.Key Responsibilities:Lead end-to-end sourcing activities, from market engagement through to contract awardSupport the development and execution of category strategies aligned to business objectivesDeliver high-value, complex procurement events, ensuring value for money and risk mitigationBuild and maintain strong relationships with internal stakeholders an