Sales, Inventory and Operations Planning (SIOP) ManagerSalary: 50,000 - 55,000 per annumLocation: Sheffield Contract: Permanent The RoleWe are seeking an experienced Sales, Inventory and Operations Planning (SIOP) Manager to play a critical role in balancing supply and demand across the business. This is a key, business-critical position responsible for translating sales demand into achievable operational plans, ensuring resources, materials and labour are aligned to deliver both current performance and long-term strategic objectives, you will be reporting to the Supply Chain Director. You will lead and manage one Project Management Officer who will support you in day to day activity.Working cross-functionally, the SIOP Manager will lead the monthly SIOP process, oversee mid- to long-term load and capacity planning, and provide clear, data-driven insight to support decision-making at senior leadership level. This role suits someone analytical, detail-oriented and confident in influencing stakeholders across sales, operations and supply chain. Key ResponsibilitiesBalance business sales demand with available capacity, resources and labourDevelop, lead and continuously improve the monthly SIOP processAnalyse, interpret and maintain complex data sets to support planning decisionsPartner with the Sales team to analyse demand and produce accurate sales forecastsFacilitate monthly load and capacity reviews, supporting operational leaders with resource improvement plansCollaborate wi