Head of Purchasing / Head of Procurement
The Head of Purchasing is responsible for buying goods and services, selecting suppliers, contract terms, and purchase margins in an e-commerce company.
What a Head of Purchasing / Head of Procurement does
The Head of Purchasing (Procurement) leads the purchasing function and decides the price, the supplier, and the terms on which the company buys goods, services, and materials. In e-commerce, this mainly means buying products for resale from suppliers, distributors, and manufacturers, as well as contracting packaging, logistics, and fulfillment providers. Purchasing quality directly affects cost of goods, category margins, product availability, and how much cash is tied up in inventory.
In high-risk verticals the role matters for several reasons. Products in sensitive categories (nutraceuticals, dietary supplements, cosmetics, high-return gadgets) require vetted suppliers with product documentation and a clear reputation, or payment providers and marketplaces may block the business. Purchasing is also exposed to seasonality, exchange rate swings, and supplier payment terms, which calls for financial and legal oversight. The Head of Purchasing usually reports to the COO or CEO, manages a team of buyers (category managers, buyers, sourcing specialists), and works closely with finance, warehousing, logistics, legal, and analytics.
In an online store, the purchasing function rests on the link between assortment, supplier, price, and stock. The Head of Purchasing is responsible for keeping this link working reliably, not just for signing contracts.
Responsibilities
- Building the category purchasing strategy: choosing directions, volumes, supply channels, and suppliers over the season and the year.
- Managing the team of buyers and category managers: setting goals, planning workload, controlling the quality of decisions, and developing staff.
- Finding, selecting, and onboarding suppliers: requesting commercial offers and negotiating price, volumes, payment terms, and return conditions.
- Approving and monitoring contracts together with lawyers: delivery deadlines, penalties, quality guarantees, and liability for non-conforming goods.
- Planning the purchasing budget and demand-driven buying with finance and analytics: sales forecasts, inventory turnover, and stock levels.
- Controlling purchase cost and margin: reviewing prices and managing currency risk and supplier price changes.
- Assessing product quality and compliance: certificates, product documentation, batch checks, and handling defects and claims.
- Managing supplier risk: vetting counterparties, diversifying sources, and preparing response plans for missed deliveries or supplier blocks.
- Coordinating with warehouse, logistics, and sales: aligning deliveries with marketing promotions and reducing stockouts and overstock.
- Establishing purchasing policies, approval workflows, and management reporting.
Skills
- Negotiating price and contract terms, and protecting margin under supplier pressure.
- Strategic assortment and category purchasing planning.
- Purchasing economics analysis: cost of goods, gross margin, inventory turnover, and cash conversion cycle.
- Leading a team and dividing tasks between category managers and buyers.
- Understanding product documentation requirements and compliance for sensitive categories.
- Assessing counterparty risk and building alternative supply sources.
- Working with data: demand forecasting, ABC/XYZ analysis, and order planning models.
- Communicating with finance, legal, warehousing, and marketing in a shared language.
- Making decisions under uncertainty and with limited budgets.
Tools
- Excel / Google Sheets for purchasing models, margin calculations, and forecasts
- ERP or accounting system (for example, 1C, SAP, Odoo)
- PIM and product catalog for managing item records and attributes
- Procurement and document management systems (for example, EDI, procure-to-pay solutions)
- BI tools for purchasing reports (for example, Power BI, Looker Studio)
- CRM or supplier database with contract history and ratings
- Warehouse management system (WMS) for tracking stock levels and turnover
How performance is measured
- Gross margin by purchasing category and its trend.
- Inventory turnover (days of inventory) and share of slow-moving stock.
- Share of stockouts and out-of-stock rate for key items.
- Purchasing budget adherence and plan-versus-actual deliveries.
- Average reduction in purchase cost over the period while maintaining quality.
- Share of deliveries received on time and without defects (on-time, in-full, quality rate).
- Number of suppliers in critical categories and level of supplier concentration risk.
By vertical
E-Commerce
In e-commerce, the Head of Purchasing owns the full cycle from assortment to warehouse stock. Purchasing decisions directly affect product availability, conversion, and catalog profitability. Key priorities include fast inventory turnover, managing seasonality, and regularly checking the assortment against marketplace rules and payment provider requirements.
Levels
Head of / Director
At the Head level, the role owns the company-wide purchasing strategy, the budget, and the final margin by category. This role makes or approves major contracts, the selection of key suppliers, and changes to the purchasing model, and is accountable for the team's results and development.
How to get there
People usually move into purchasing from adjacent roles: purchasing specialist or buyer, supply manager, category manager in retail or online trade, assortment analyst, or supplier sales manager. A good starting point is working with prices, contracts, and suppliers in a small company where a buyer runs the whole process from request to goods receipt.
To grow into a head role, it is important to master purchasing economics (cost, margin, turnover, cash conversion cycle), learn to work with demand forecasts and budget plans, and understand the basic legal aspects of contracts and product documentation requirements. It also helps to negotiate with suppliers directly, handle conflict situations (defects, missed deliveries), and learn to explain decisions to finance and leadership in clear numbers.
The move into a head role usually happens when a person already manages a category or a small group of buyers, is accountable for a budget, and shows stable results in margin and availability. Experience building processes, working with ERP systems, and managing a team are also valued.
Next steps: Director of Procurement / Procurement Director, Chief Operating Officer (COO), Head of Supply Chain, Head of Category Management, Commercial Director
FAQ
How is a Head of Purchasing different from a buyer?
A buyer usually owns specific items and suppliers within an agreed plan. The Head of Purchasing designs the strategy for the whole function, manages the team and budget, and holds final margin accountability, and also makes decisions on key contracts and changes in approach.
What background do you need to become a head of purchasing in e-commerce?
Most often companies hire people with experience in purchasing, category or assortment management, and an understanding of cost of goods and logistics. Negotiation skills, data skills, and people management are important. An economics or business education helps but is not always required.
What is special about purchasing in high-risk niches?
You need to vet suppliers and product documentation more deeply, account for payment provider and platform restrictions, and be ready for a sudden channel block. For this reason, purchasing plans include source diversification and backup options.
What determines a Head of Purchasing's income?
Income depends on company size and purchasing volume, category complexity, process maturity, and how the role's results are tied to margin and business goals. The larger the budget and the greater the impact on profit, the higher the market value of the role.
Which skills matter most for a head of purchasing?
The key skills are usually negotiation, purchasing economics, demand forecasting, and supplier risk management. Team management and communication with finance and warehousing are equally important, because purchasing decisions affect the entire operating model.
What career paths open up from this role?
From Head of Purchasing, people often move to director of procurement, supply chain leadership, or the operations side of the company. A path to COO or a commercial role is possible if the person has grown beyond a purely functional procurement role.
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