Senior Demand Planner

DiaSorin; Illinois; On-site; USD 98,000 - 119,000; Full time

Benefits offered by this job

Health benefits

Retirement plan

Wellbeing support

Annual incentive program

Time off programs

Job summary

Diasorin is seeking a Senior Demand Planner in the United States to lead the demand planning process for multiple product portfolios. You will forecast using historical data, market trends, and commercial input, partnering with Sales, Marketing, Finance, and Operations.

You will drive S&OP processes, monitor KPIs, and identify risks and opportunities to optimize inventory and service levels, leveraging SAP and Power BI in a collaborative, regulated manufacturing setting.

Qualifications

• Bachelor’s degree in Supply Chain Management or related field.
• 5+ years in demand planning, S&OP, forecasting, inventory management, or related functions.
• Experience in regulated manufacturing environments.
• Experience in medical diagnostics/biotech/pharma sectors preferred.
• Experience in global/matrixed organizations.
• Certifications: CPIM, CSCP, CPF.
• Strong forecasting, analytics, and Excel/BI skills.
• Experience with SAP ERP systems.

Responsibilities

• Lead monthly demand planning and forecast reviews for assigned portfolios.
• Develop and improve forecasts using data, market trends, and business assumptions.
• Collaborate across Sales, Marketing, Finance, Customer Service, Manufacturing, and Supply Chain to achieve consensus.
• Lead S&OP participation and provide insights on demand trends and inventory implications.
• Monitor forecast accuracy, bias, and inventory performance; drive action plans.
• Evaluate launches and lifecycle changes impacting demand; coordinate with commercial teams.

Skills

Forecasting

S&OP

Data analysis

Stakeholder management

Excel

Power BI

ERP SAP

Cross-functional leadership

Education

Bachelor’s degree in Supply Chain

APICS CPIM Certification

CSCP Certification

CPF Certification

Tools

SAP ERP

Power BI

Advanced Excel

Job description

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Senior Demand Planner

Published on: Sep 15, 2026

Country: United States

Company: Luminex Corporation

Job Category: Operations

Employment type: Regular Full Time

Obsessed by Science. Entrepreneurial by Nature. United by Purpose.

Diasorin is a global leader in immunodiagnostic and molecular diagnostic solutions, advancing science to improve patient outcomes worldwide. For more than 50 years, we have combined scientific rigor with an entrepreneurial mindset, operating with a strong commitment to innovation, accountability, and results to deliver trusted diagnostic solutions.

As the Diagnostics Specialist, Diasorin continuously invests in research, technology, and people. Guided by our values of operational excellence, customer focus, and teamwork, we empower teams to think boldly, act decisively, and transform ideas into meaningful impact across one of the industry’s broadest specialty diagnostic portfolios.

When you join Diasorin, you are not just filling a role. You are helping build what comes next.

Why Join Diasorin

• Build What Matters
  Take ownership, challenge the status quo, and contribute directly to solutions that improve patient care worldwide.
• Innovate with Agility at a Global Scale
  Work in an entrepreneurial environment that enables speed, collaboration, and global impact.
• Grow in a People-Centered Culture
  Thrive in a culture that values accountability, inclusion, and continuous development.

JOB SUMMARY

The Senior Demand Planner is responsible for leading the demand planning process across assigned product portfolios and markets, developing and maintaining accurate demand forecasts that support commercial, manufacturing, inventory, and customer service objectives. This position serves as a key business partner to Sales, Marketing, Finance, Operations, and Supply Chain teams, driving forecast accuracy, inventory optimization, and informed business decision-making through data-driven analysis and participation in the Sales & Operations Planning (S&OP) process. The Senior Demand Planner identifies risks and opportunities, recommends mitigation strategies, and leads continuous improvement initiatives to enhance planning processes and forecast performance.

Key Responsibilities and Duties

• Lead the monthly demand planning and forecast review process for assigned product portfolios.
• Develop, maintain, and continuously improve statistical and market-driven forecasts using historical data, commercial intelligence, market trends, and business assumptions.
• Facilitate collaboration between Sales, Marketing, Finance, Customer Service, Manufacturing, and Supply Chain teams to achieve forecast consensus.
• Serve as the demand planning representative within the S&OP process, providing insights on demand trends, risks, opportunities, and inventory implications.
• Analyze forecast accuracy, forecast bias, inventory performance, and demand variability; develop action plans to improve planning effectiveness.
• Partner with commercial teams to evaluate new product launches, product lifecycle changes, tenders, and market events impacting demand.
• Monitor key performance indicators (KPIs) including forecast accuracy, bias, inventory levels, service levels, backorders, and excess/obsolete inventory.
• Identify supply-demand imbalances and proactively communicate risks and mitigation recommendations to leadership.

Additional Responsibilities and Duties

• Participate in cross-functional projects supporting business growth, operational excellence, and integration initiatives.
• Support annual budgeting and strategic planning processes.
• Collaborate with divisional planning teams to ensure alignment of assumptions and planning methodologies.

QUALIFICATIONS

• Bachelor’s degree in Supply Chain Management, Business, Engineering, Operations Management, Statistics, Economics, or related field.
• 5+ years Experience in demand planning, supply chain planning, forecasting, inventory management, S&OP, or related supply chain functions.
• Demonstrated experience managing complex product portfolios and forecasting processes in a regulated manufacturing environment.
• Experience within medical diagnostics, medical devices, biotechnology, life sciences, pharmaceutical, or healthcare industries.
• Experience working in global and matrixed organizations.
• APICS/ASCM Certified in Planning and Inventory Management (CPIM)
• ASCM Certified Supply Chain Professional (CSCP)
• IBF Certified Professional Forecaster (CPF)
• Advanced knowledge of demand planning, forecasting methodologies, inventory management, and S&OP processes.
• Strong statistical analysis and forecasting skills.
• Advanced proficiency in Microsoft Excel, Power BI, and forecasting/planning systems.
• Experience with ERP platforms such as SAP.
• Ability to analyze large data sets and translate insights into actionable business recommendations.
• Strong project management and process improvement skills.
• Excellent communication and presentation skills with the ability to influence stakeholders at all organizational levels.
• Strong business acumen and financial understanding.
• Proven ability to lead cross-functional initiatives and drive organizational alignment.
• Knowledge of Good Manufacturing Practices (GMP) and regulated business environments.
• Travel up to 20%

What We Offer

Receive a competitive salary and benefits package as you grow your career at Diasorin. Join our team and discover how your work can impact the lives of people all over the world. Individual pay is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base salary only, and do not include bonus, equity or sales incentives, if applicable. The salary range for this position is $ 97,800 - $118,600 annually. The salary range for this role represents the numerous factors considered in the hiring decisions including, but not limited to, educations, skills, work experience, certifications, etc. Beyond base salary, Diasorin offers a competitive rewards package focused on your overall well-being. We are proud to offer a comprehensive plan of health benefits, retirement and financial wellbeing, time off programs, wellbeing support and perks. Benefits may vary by role, country, region, union status, and other employment status factors. You may also be eligible to participate in an annual incentive program. An incentive award, if any, depends on various factors, including, individual and organizational performance.

Diasorin is committed to building a workplace where people feel empowered to contribute ideas, take ownership, and grow their careers. We believe diverse perspectives strengthen innovation and help us deliver meaningful impact for patients and customers worldwide.

Diasorin is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable law.

This posting and recruitment process are subject to applicable local laws and regulations in the country where the position is located. Additional employment disclosures, candidate rights, and employment conditions may apply based on local jurisdiction.

Individuals hired will be required to verify identity and eligibility to work and may be subject to a background check and drug screening where permitted by law. Diasorin is committed to providing reasonable accommodations for qualified individuals with disabilities during the application process. If assistance is required, please contact [e-mail] .