Demand Planner: Multi-Channel Forecasting & Inventory

Sunco.com; Los Angeles (CA); On-site; USD 110,000 - 130,000; Full time

Benefits offered by this job

Health insurance

401(k) with company match

FSAs

Paid time off

Employee assistance program (EAP)

Job summary

Sunco Lighting Inc. in Valencia, CA, is seeking a highly analytical Demand Planner to drive forecasting and inventory planning for a growing multi-channel business.

You will develop and maintain forecasts across e-commerce, Amazon, retail, wholesale, marketplace, and direct-to-consumer channels to support inventory availability and operational efficiency. The role requires experience building forecast models, translating data into actionable recommendations, and collaborating with Sales,

Qualifications

• 3–5 years of experience in demand planning, demand management, forecasting, inventory planning, or supply chain planning across multiple channels.
• Strong knowledge of demand planning principles, including sales velocity, seasonality, lead times, safety stock, forecast accuracy, demand variance, and inventory allocation.
• Experience using demand planning software, ERP systems, inventory planning tools, advanced Excel, forecasting models, and AI-driven tools or automation to improve forecasting and reporting.
• Proven ability to review and adjust system-generated forecasts, apply demand overrides, document planning assumptions, and translate data into actionable recommendations.
• Excellent cross-functional communication and collaboration skills, with experience partnering with Sales, Purchasing, Supply Chain, Operations, Finance teams to align forecasts and inventory strategies.

Responsibilities

• Create and maintain demand forecasts across multiple channels (Amazon, e-commerce, retail, wholesale, marketplace, D2C).
• Analyze sales trends, seasonality, inventory levels, promotions, and market activity to improve forecast accuracy.
• Review system-generated forecasts and adjust based on business needs and market changes.
• Monitor inventory health and recommend replenishment actions to reduce stockouts and excess inventory.
• Partner with Sales, Purchasing, Supply Chain, Operations, and Finance to align demand plans and inventory strategies.
• Track forecast accuracy and key planning metrics, supporting continuous improvement in processes and tools.
• Manage demand planning systems, forecast inputs, planning parameters, and item-level assumptions.
• Collaborate with teams through regular demand review and planning meetings.

Skills

Demand planning

Forecasting

Inventory management

Cross-functional collaboration

Excel proficiency

Tools

ERP systems

Advanced Excel

Job description

Sunco Lighting Inc. in Valencia, CA, is seeking a highly analytical Demand Planner to drive forecasting and inventory planning for a growing multi-channel business.

You will develop and maintain forecasts across e-commerce, Amazon, retail, wholesale, marketplace, and direct-to-consumer channels to support inventory availability and operational efficiency. The role requires experience building forecast models, translating data into actionable recommendations, and collaborating with Sales,