Strategic S&OP Planner: Demand, Capacity & Inventory

Jonathan Lee Group; Ellesmere Port; On-site; GBP 32,000 - 52,000; Full time

Job summary

Jonathan Lee Group is seeking a Sales and Operations Planner based in Ellesmere Port. You will connect demand, capacity, inventory, and critical materials to ensure customer promises are met in a fast-moving manufacturing environment.

Responsibilities include coordinating S&OP monthly processes, translating forecasts into feasible production plans, and maintaining rolling demand forecasts. You will work with commercial, operations, procurement, technical, and finance teams to improve performance

Qualifications

• A degree or equivalent experience in supply chain, operations, business, engineering, manufacturing, or a related discipline.
• Minimum 3 years' experience in production planning, demand planning, supply chain planning, or S&OP within a manufacturing setting.
• Strong analytical skills, with advanced Excel ability and experience using ERP/MRP systems.
• Confidence working cross-functionally and communicating effectively with stakeholders to drive alignment.
• A continuous improvement mindset, with proven attention to detail and data accuracy.

Responsibilities

• Coordinate and facilitate the monthly Sales and Operations Planning (S&OP) process across key functions.
• Consolidate demand forecasts and translate customer requirements into achievable production plans.
• Balance customer demand against manufacturing capacity and operational constraints, identifying risks and improvement opportunities.
• Build and maintain rolling demand forecasts, using historical trends, market insight, and commercial pipeline information.
• Create and update production schedules aligned to customer needs, ensuring schedule adherence and delivery performance.
• Monitor and optimise inventory of raw materials, work-in-progress, and finished goods, working with procurement to avoid critical shortages.

Skills

Analytical skills

Cross-functional communication

Data accuracy

Continuous improvement mindset

Education

Degree or equivalent in supply chain/related discipline

Tools

Excel

ERP/MRP systems

Job description

Jonathan Lee Group is seeking a Sales and Operations Planner based in Ellesmere Port. You will connect demand, capacity, inventory, and critical materials to ensure customer promises are met in a fast-moving manufacturing environment.

Responsibilities include coordinating S&OP monthly processes, translating forecasts into feasible production plans, and maintaining rolling demand forecasts. You will work with commercial, operations, procurement, technical, and finance teams to improve performance