Manager, Demand Planning

Job Description: Manager, Demand Planning

Location: Philadelphia, PA

Industry: Consumer Health & Wellness / Nutritional Supplements

Channel Focus: eCommerce. Amazon (Primary), Direct-to-Consumer and Wholesale (Secondary)

Reporting To: VP, Operations

Type: Full-Time

About Us

Double Wood Supplements is a leading direct to consumer nutritional supplements company. Since its founding in 2013, the company has experienced significant growth on the strength of repeat customers and positive reviews and has been named to the Inc. 5000 list of the fastest growing private companies in America for the last seven years. We are a private-equity backed supplements brand focused on delivering high-quality, science-backed products to consumers. With eCommerce as our primary sales channel and a nimble team of dedicated employees, we operate in a highly dynamic environment where data-driven decisions, operational excellence, and supply chain efficiency are critical to our success.

As we accelerate growth, we are seeking a highly analytical, proactive, and detail-oriented Manager, Demand Planning to help optimize inventory, forecast demand, and ensure we maintain strong in-stock performance while minimizing working capital.

Role Summary

The Manager, Demand Planning will own end-to-end demand forecasting, inventory planning, and replenishment strategies across all of our Channels. This role is critical to balancing growth, operational efficiency, and cash flow in a PE-backed environment. You will partner closely with Operations, Supply Chain, Finance, Marketing, Channel Management, and external manufacturers to drive data-backed decisions and support an aggressive growth plan.

This is a high-impact role ideal for someone comfortable in a small, fast-paced organization who thrives on both strategic analysis and hands-on execution.

Key Responsibilities

Demand Planning & Forecasting

●Develop, refine, and maintain weekly and monthly demand forecasts at the SKU level across multiple Sales Channels.

●Analyze historical sales, seasonality, promotions, and marketing inputs to improve forecast accuracy.

●Own forecast models and tools (Excel, Sheets, forecasting software, or ERP modules) and continuously improve their sophistication.

Amazon-Focused Inventory Management

●Manage FBA inventory planning, replenishment strategies, and monitoring of capacity limits.

●Maintain strong in-stock rates and track OOS risks, overstock exposures, and aging inventory.

●Collaborate with the Amazon team on promotions, BSR trends, advertising impacts, and category performance.

Supply Chain Coordination

●Partner with supply chain to ensure demand plans align with available capacity at contract manufacturers.

Data Analysis & Reporting

●Build and own dashboards tracking forecast accuracy, stockouts, safety stock levels, and inventory KPIs.

●Present weekly insights to leadership and PE stakeholders with clear recommendations and scenario planning.

●Provide data-driven input into new-product planning and lifecycle management.

Cross-Functional Collaboration

●Work closely with Operations, Finance, and Amazon