Demand Planning and S&OP Manager

Location: Winona

The Company Imerys is the world’s leading supplier of mineral-based specialty solutions for the industry with 3.4 billion in revenue and 12,300 employees in 40 countries in 2025. The Group offers high value-added and functional solutions to a wide range of industries and fast-growing markets such as solutions for the energy transition and sustainable construction, as well as natural solutions for consumer goods.

Imerys draws on its understanding of applications, technological knowledge, and expertise in material science to deliver solutions which contribute essential properties to customers’ products and their performance. As part of its commitment to responsible development, Imerys promotes environmentally friendly products and processes in addition to supporting its customers in their decarbonization efforts.

Imerys is listed on Euronext Paris (France) with the ticker symbol NK.PA.The Position Demand Planning and S&OP Manager

Job Summary Job Purpose The Demand Planning and S&OP Manager is responsible for the sales forecast and operational capacity across assigned manufacturing sites. He/She ensures alignment between cross-functional teams and Top Management to deliver mid- to long-term business targets, while facilitating the resolution of short-term issues in coordination with other business functions.

Job Scope/Dimensions Demand Planning (25% Workload)
Develop, compile, and analyze forecast deviations.

Collect, analyze, and challenge forecasts within a specific scope, combining manual inputs from Sales with statistical parameters to adjust and update data.

Identify, challenge, and flag shifts in customer purchasing patterns.

Drive continuous improvement of forecasting tools and processes.

Demonstrate curiosity and a solid understanding of our customers' business models.

S&OP (75% Workload)
Execute the monthly S&OP process for assigned manufacturing sites in coordination with Factories, Sales, Demand Planning, Controlling, and Supply Chain to ensure high service quality.

Ensure data generated by functional stakeholders is fit for the S&OP process and initiate corrective actions when needed (e.g., improving demand forecast accuracy).Align production capacity with demand, preparing all necessary data, metrics, and scenarios for discussion during S&OP meetings.

Identify, monitor, and report assumptions, risks, and opportunities related to mid- to long-term business targets, escalating issues as appropriate.

Manage and optimize site-level inventory.

Lead allocation plans when required, in coordination with Product Managers and Sales teams.

Demonstrate strong interest in and understanding of production processes and manufacturing workflows.

Responsibilities & Duties Perform deep-dive analyses of monthly forecasts.

Cross-check forecasts against the order book (aligning with Supply Chain regarding backlogs or with Sales regarding missing orders vs. forecast).Conduct thorough analyses of exceptions and system warnings.

Configure statistical models and algorithms for new references or parameter adjustments.

Track Forecast Accuracy and deviation analysis across multiple levels, identifying root causes and impacts.

Build strong working relationships with Sales Managers and the Master Data team.

Establish, execute, and continuously refine the S&OP process for the assigned scope.

Project future plant workloads by workshop/product family on a monthly basis by translating demand into production requirements.

Analyze supply and demand issues and propose viable solutions.

Document S&OP meeting minutes, communicate key decisions to stakeholders, and track follow-up actions.

Key Interfaces:
Build strong partnerships with (i) Segment Leadership, (ii) Product Management, (iii) Supply Chain, (iv) Operations, (v)…