Demand Planner

Position Summary 

At Thermo Fisher Scientific, our mission is to enable our customers to make the world healthier, cleaner, and safer. The Demand Planner III plays a critical role in advancing this mission by developing accurate, data-driven demand forecasts that enable effective supply planning and operational execution across global product portfolios. 

This role is designed for a highly analytical and collaborative professional who thrives in a dynamic, fast-paced environment and is passionate about translating market insights, business trends, and statistical modeling into actionable demand plans. You will partner across Product Management, Commercial, Marketing, Finance, Operations, and Supply Chain to drive alignment on demand assumptions, identify risks and opportunities, and support business growth objectives. 

As a key contributor within the SIOP process, you will bring structure, visibility, and rigor to demand planning activities while driving continuous improvement through Thermo Fisher’s Practical Process Improvement (PPI) business system and exemplifying our 4i Values: Integrity, Intensity, Innovation, and Involvement. 

What You Will Do 

Forecast Development & Demand Planning 

• Develop statistical demand forecasts at product family and SKU level using historical trends, market insights, attach rates, pacing, and business assumptions 

• Adjust and refine forecasts based on commercial inputs, product lifecycle changes, and evolving business conditions 

• Create and maintain forecasts for new product introductions (NPI), end-of-life (EOL) transitions, and product phase-in/phase-out activities 

• Manage regional and market-level forecasts 

Forecast Accuracy & Business Insights 

• Monitor forecast accuracy and bias across products, regions, and markets to identify trends and improvement opportunities 

• Perform root cause analysis on forecast variances including volume, mix, timing, and pricing impacts 

• Validate assumptions against actual performance and incorporate learnings into future forecast cycles 

• Develop actionable insights to support business decision-making and operational planning 

Cross-Functional Alignment & SIOP Integration 

• Partner closely with Product Management, Commercial, Marketing, Finance, Operations, and Supply Chain teams to align on forecast assumptions, risks, and opportunities 

• Facilitate data-driven discussions to reconcile gaps across functional inputs and drive aligned demand plans 

• Support the monthly SIOP process through demand review preparation, scenario analysis, and demand plan handoff to supply planning teams 

• Document key assumptions, risks, opportunities, actions, and decisions to ensure clear cross-functional alignment 

Process Improvement & Digitalization 

• Identify opportunities to improve forecasting processes, tools, and data quality 

• Support digitalization initiatives including ERP and planning system enhancements 

• Raise and prioritize system enhancements and process improvement opportunities to improve forecast accuracy and usability 

• Develop and leverage systems (Kinaxis), dashboards, analytics, and reporting tools (e.g., Power BI) to improve visibility and enable data-driven decision making 

Leadership Expectations (4i Values in Action) 

• Integrity – Build trust through transparent communication, data-driven decisions, and consistent follow-through on commitments 

• Intensity – Bring urgency and focus to resolving challenges and delivering results in a fast-paced environment 

• Innovation – Challenge the status quo by identifying new ways to improve forecasting, analytics, and planning processes 

• Involvement – Foster strong cross-functional collaboration, engaging the right stakeholders to drive aligned outcomes 

How You Will Get Here 

Education 

• Bachelor’s degree in Business, Supply Chain, Operations, Finance, Analytics, or related field 

Experience 

• 3–5+ years of experience in demand planning, supply chain, forecasting, analytics, or related fields 

• Experience developing statistical forecasts and managing demand plans in a global, matrixed organization 

• Strong analytical and problem-solving skills with experience interpreting large datasets and translating insights into business actions 

• Experience with ERP systems and planning tools (e.g., SAP, Kinaxis, Power BI, Excel, dashboards, etc.) 

• Prior demand planning experience preferred 

• Proven ability to influence stakeholders and drive alignment across functions 

Why This Role 

This is a high-visibility role for a highly analytical and collaborative professional who wants to help build and evolve next-generation demand planning capabilities within a global organization. You will have the opportunity to: 

• Help shape and standardize scalable demand planning processes 

• Drive meaningful improvements in forecast accuracy, visibility, and business alignment 

• Partner with leaders across Commercial, Product Management, Finance, Operations, and Supply Chain 

• Support digital transformation and advanced planning capabilities 

• Expand your expertise in SIOP, analytics, and operational excellence within a world-class organization