Category Buyer, Non-Metals Procurement (H/F)

Support the Non-Metals Procurement team in sourcing, supplier management and procurement excellence initiatives. Contribute to cost optimization, supplier performance, digital procurement transformation (S/4HANA, e-Procurement tools, AI solutions) and operational efficiency across the site. Key Accountabilities  Take-over management of selected categories  Lead sourcing projects, RFQs, supplier selection and negotiations in line with procurement strategies.  Monitor supplier performance and contribute to supplier development, innovation and sustainability initiatives.  Assist with contract implementation, compliance and procurement governance requirements.  Support purchase order and procure-to-pay activities while ensuring process accuracy and internal control compliance.  Collaborate with operations, finance and category managers to address business needs and resolve procurement issues.  Contribute to reporting, continuous improvement projects and deployment of digital procurement solutions. Organization & Internal/External Work Relations  Reports to: Site Procurement Leader  Geographical Scope: Switzerland, Valais - Sierre  Internal Relations: Site operations, finance, category managers  External Relations: Site-level suppliers, service providers Profile & Qualifications  Master's degree (or equivalent) in Business, Procurement, Supply Chain, Engineering or a related field.  First practical experience through internships, apprenticeships or graduate projects in procurement, project management, sales, contract management or finance.  Interest in heavy industrial environments; knowledge of the metallurgy industry is a plus.  Experience working in an international or multicultural environment is appreciated.

 Master's degree (or equivalent) in Business, Procurement, Supply Chain, Engineering or a related field.  First practical experience through internships, apprenticeships or graduate projects in procurement, project management, sales, contract management or finance.  Interest in heavy industrial environments; knowledge of the metallurgy industry is a plus.  Experience working in an international or multicultural environment is appreciated.  Good command of SAP, MS Office and digital tools.  Strong analytical, communication and teamwork skills.  Proactive, curious and solution-oriented mindset.  Fluent French and professional English; German is a strong advantage.  This role will involve regular travel for business in Europe and as such you must be able to travel accordingly.

Constellium is a global leader in the development and manufacturing of high value-added aluminum products and solutions for a broad range of markets and applications, with a strong focus on Aerospace, Automotive and Packaging. We design, develop and engineer products and solutions in partnership with our customers. With approximately 11,500 employees worldwide, Constellium operates 24 manufacturing sites across North America, Europe and China and generated $8.4 billion of revenue in 2025. Constellium est un leader mondial dans le développement et la fabrication de produits et de solutions en aluminium à forte valeur ajoutée pour une large gamme de marchés et d’applications, avec un fort accent sur les secteurs de l’aéronautique, de l’automobile et de l’emballage. Nous concevons, développons et élaborons des produits et des solutions en partenariat avec nos clients. Avec environ 11 500 collaborateurs dans le monde, Constellium exploite 24 sites de production en Amérique du Nord, en Europe et en Chine, et a généré un chiffre d’affaires de 8,4 milliards de dollars en 2025.