Supply and Demand Planner

As a Supply & Demand Planner at Mill, you will play a central role in ensuring our hardware production stays aligned with real business needs. You’ll consolidate demand across multiple workstreams, build the weekly and long-term demand plan for our Contract Manufacturer (CM), and partner closely across Operations to ensure we’re building the right products at the right time.

This role is deeply cross-functional: you’ll collaborate with Manufacturing, Materials Program Management, Logistics, Product, and Finance to maintain operational readiness and supply continuity. You’ll also be responsible for shaping and using Mill’s AI-enabled planning systems, helping us automate forecasting, run scenario plans, and improve long-term planning accuracy.

This is a highly visible role, you’ll regularly present options and recommendations to leadership, especially when key decisions depend on supply, demand, or build-plan scenarios.

Key Responsibilities

• Own Mill’s end-to-end demand planning process for our Contract Manufacturer, ensuring all workstreams roll into a unified, accurate forecast.
• Consolidate demand across regular sales, spares, warranty replacements, refurbishments, and special programs, providing a clear weekly and long-range demand signal.
• Translate demand into a feasible build plan, incorporating CM constraints such as capacity, tooling, labor, and production sequencing.
• Partner closely with Manufacturing Lead to set CM production priorities and ensure they align with business goals.
• Work hand-in-hand with the Materials Program Manager to assess Clear-to-Build (CTB) readiness, identify component shortages, track ECO impacts, and validate build feasibility.
• Lead weekly supply/demand syncs and support Ops teams with scenario modeling to navigate constraints or shifts in demand.
• Leverage AI-powered forecasting and planning tools to improve accuracy, detect trends, automate workflows, and build multi-scenario plans.
• Create and present decision-ready options to leadership, including tradeoffs, risks, timelines, and modeled scenarios, when strategic decisions are required.
• Maintain high-quality planning data, ensure alignment across systems, and contribute to ongoing improvements in Mill’s digital planning ecosystem.
• Support new product introductions, inventory optimization, and efforts to reduce excess and obsolete materials.

About You

• You have 3+ years of experience in supply chain, demand planning, materials management, or a similar operations role, ideally in consumer hardware or manufacturing environments.
• You’re comfortable working directly with contract manufacturers and understand the realities of tooling, capacity planning, and build sequencing.
• You have strong experience with CTB analysis, constraint-based planning, and scenario modeling.
• You’re excited about using AI and advanced planning tools to enhance forecasting, automate processes, and scale planning workflows.
• Highly analytical, with the ability to turn complex data into clear insights and actionable plans.
• A strong communicator, able to present effectively to leadership and summarize risks, scenarios, and recommendations with clarity.
• You collaborate naturally across engineering, product, logistics, finance, and manufacturing teams.
• You thrive in environments where you can bring structure, visibility, and proactive problem solving.
• Organized, detail-oriented, and able to manage both long-term planning and fast-moving tactical needs.
• Motivated by Mill’s mission to reduce waste and make sustainable living simple and joyful.

Additional Details

This role is based out of our San Bruno location and is in-office 3 days/week.

The estimated base salary range for this position is $145k - $162k, which does not include the value of benefits or a potential equity grant. A wide range of factors are considered in making compensation decisions, including but not limited to skill sets, market conditions, experience and training, licensure and certifications, and business and organizational needs. At Mill, it is not typical for an individual to be hired at or near the top of the range for their role.