Vacature Commodity Buyer in Leiden bij S&Z Consultancy

• Leiden
• Nederland
• ZZP
• HBO
• Commercieel / verkoop Management / interim

Vacature omschrijving

Startdatum: 1 juni 2026

Einddatum: 31 mei 2027

Duur: 12 maanden

Sluitingsdatum: 30 mei 2026

Publicatiedatum: 19 mei 2026

Position

Title: Commodity Buyer Launchers & Site Operations
Hours: 40 hours per week
Location: Leiden / Oegstgeest area (hybrid possible)
Type: Deta-vast (1600 hours)

About the role

In this strategic procurement role you are responsible for end-to-end sourcing and supplier management of launcher-related commodities such as fasteners, Ground Support Equipment (GSE) and other site-critical technical supplies. You ensure continuity of supply, supplier performance and technical compliance while optimising procurement processes and the overall value chain. You report to the Head of Procurement and work closely with Program Supply Managers, engineers and supplier account teams.

Your role & responsibilities

• Define and execute commodity sourcing strategies for fasteners, GSE and site operational supplies
• Lead bid, tender and supplier selection processes for high-reliability suppliers
• Negotiate master service agreements and one-off contracts; manage renewals, claims and waivers in collaboration with Legal
• Lead the Supplier Account Team and monitor supplier performance
• Identify and mitigate supply chain risks and develop strategic supplier partnerships
• Ensure supplier priority and continuity during supply chain volatility
• Act as the procurement interface between Procurement and Launcher Program Management
• Provide reporting on procurement status, costs and supply risks
• Manage strategic stock levels to prevent production disruptions while optimising inventory costs
• Support operational continuity of the production site through procurement coordination
• Collaborate closely with engineering teams on technical specifications and procurement requirements

Your profile

• HBO-level education (Bachelor equivalent)
• Relevant experience in strategic procurement, commodity buying or supply chain management
• Experience within a technical, manufacturing or aerospace environment is a strong plus
• Strong negotiation and stakeholder management skills
• Analytical mindset with experience in cost optimisation and supplier performance management
• Ability to work with technical specifications and engineering stakeholders
• High attention to detail and strong sense of integrity and quality
• Experience with supplier and contract management
• Excellent English communication skills (required)
• Available for deta-vast

What we offer

• A challenging procurement role within an international aerospace environment
• Opportunity to work on innovative space and launcher programs
• A highly collaborative and international working environment
• Exposure to strategic supplier and program management
• Hybrid working possibilities
• Opportunity to contribute to critical space technologies and operations